publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
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2015-10-01 | 'Metal'-like transport in high-resistance, high aspect ratio two-dimensional electron gases | We investigate the striking absence of strong localisation observed in
mesoscopic two-dimensional electron gases (2DEGs) (Baenninger et al 2008 Phys.
Rev. Lett. 100 1016805, Backes et al 2015 Phys. Rev. B 92 235427) even when
their resistivity $\rho >> h/e^2$. In particular, we try to understand whether
this phenomenon... | 1510.00236v2 |
2016-07-28 | A Second-order Divergence-constrained Multidimensional Numerical Scheme for Relativistic Two-Fluid Electrodynamics | A new multidimensional simulation code for relativistic two-fluid
electrodynamics (RTFED) is described. The basic equations consist of the full
set of Maxwell's equations coupled with relativistic hydrodynamic equations for
separate two charged fluids, representing the dynamics of either an
electron-positron or an elec... | 1607.08487v1 |
2016-12-14 | Successive spatial symmetry breaking under high pressure in the spin-orbit-coupled metal Cd2Re2O7 | The 5d-transition metal pyrochlore oxide Cd2Re2O7, which was recently
suggested to be a prototype of the spin-orbit-coupled metal [Phys. Rev. Lett.
115, 026401 (2015)], exhibits an inversion-symmetry breaking (ISB) transition
at 200 K and a subsequent superconductivity below 1 K at ambient pressure. We
study the crysta... | 1612.04577v2 |
2016-12-25 | Effects of Interstitial Oxygen and Carbon on Niobium Superconducting Cavities | We present results on the effects of interstitial oxygen and carbon on a
bulk-niobium superconducting radio-frequency cavity. Previous experiments have
shown that high-temperature (~800 $^\circ\text{C}$) nitrogen-doping plays the
dominant role in the reduction of the electron mean free path in the RF
penetration layer ... | 1612.08291v2 |
2017-06-06 | Topological Phase Transition Under Pressure in the Topological Nodal Line Superconductor PbTaSe$_2$ | A first-order-like resistivity hysteresis is induced by a subtle structural
transition under hydrostatic pressure in the topological nodal-line
superconductor PbTaSe$_2$. This structure transition is quickly suppressed to
zero at pressure $\sim$0.25 GPa. As a result, superconductivity shows a marked
suppression, accomp... | 1706.01744v1 |
2018-02-21 | Optical transparency and electrical conductivity of single-wall carbon nanotubes and of intermediate filaments of porcine Müller cells | In the present study, we continue investigation of the high-contrast vision
in the inverted retina of the vertebrates eyes. We report a method of
separation and purification of porcine (Sus scrofa domestica) intermediate
filaments (IFs), extracted from the retinal M\"uller cells (MCs). We also
report experimental and t... | 1803.07124v1 |
2018-04-27 | Effect of uniaxial stress on the magnetic phases of CeAuSb$_2$ | We present results of measurements of resistivity of \CAS{} under the
combination of $c$-axis magnetic field and in-plane uniaxial stress. In
unstressed \CAS{} there are two magnetic phases. The low-field A phase is a
single-component spin-density wave (SDW), with $\mathbf{q} = (\eta, \pm \eta,
1/2)$, and the high-fiel... | 1804.10539v2 |
2018-05-29 | Resisting collapse: How matter inside a black hole can withstand gravity | How can a Schwarzschild-sized matter system avoid a fate of gravitational
collapse? To address this question, we critically reexamine the arguments that
led to the "Buchdahl bound", which implies that the minimal size of a stable,
compact object must be larger than nine eighths of its own Schwarzschild
radius. Followin... | 1805.11667v2 |
2018-06-08 | Fluidity Onset in Graphene | Viscous electron fluids have emerged recently as a new paradigm of
strongly-correlated electron transport in solids. Here we report on a direct
observation of the transition to this long-sought-for state of matter in a
high-mobility electron system in graphene. Unexpectedly, the electron flow is
found to be interaction... | 1806.03231v2 |
2018-06-25 | Noise Measurements of High-Speed, Light-Emitting GaN Resonant-Tunneling Diodes | We report here the first RF noise measurements on two designs of n-doped
GaN/AlN double-barrier resonant tunneling diodes (RTDs), each having a
room-temperature negative differential resistance (NDR) and also strong near-UV
light emission. The measurements are made with a standard, un-isolated RF
receiver and calibrati... | 1806.09270v1 |
2019-09-04 | High-field moment polarization in the itinerant ferromagnet URhSi | We report a high-magnetic-field study of the itinerant ferromagnet URhSi.
Magnetization and electrical resistivity were measured under magnetic fields
$\mu_0H$ up to 58~T applied along the directions $\mathbf{a}$, $\mathbf{b}$,
and $\mathbf{c}$ of the orthorhombic structure and temperatures $T$ ranging
from 1.5 to 50 K... | 1909.01810v2 |
2019-09-30 | Hall coefficient diagnostics of surface state in pressurized SmB6 | In this study, we report the first results of the high-pressure Hall
coefficient (RH) measurements in the putative topological Kondo insulator SmB6
up to 37 GPa. Below 10 GPa, our data reveal that RH(T) exhibits a prominent
peak upon cooling below 20 K. Remarkably, the temperature at which surface
conduction dominates ... | 1909.13462v1 |
2014-10-06 | Memristive Threshold Logic Circuit Design of Fast Moving Object Detection | Real-time detection of moving objects involves memorisation of features in
the template image and their comparison with those in the test image. At high
sampling rates, such techniques face the problems of high algorithmic
complexity and component delays. We present a new resistive switching based
threshold logic cell ... | 1410.1267v1 |
2014-11-11 | Frequency-dependent phonon mean free path in carbon nanotubes from non-equilibrium molecular dynamics | Owing to their long phonon mean free paths (MFPs) and high thermal
conductivity, carbon nanotubes (CNTs) are ideal candidates for, e.g., removing
heat from electronic devices. It is unknown, however, how the intrinsic phonon
MFPs depend on vibrational frequency in non-equilibrium. We determine the
spectrally resolved p... | 1411.2838v2 |
2014-11-12 | Acoustic (Ultrasonic) Non-Diffracting Beams: Some theory, and Proposals of Acoustic Antennas for several purposes | On the basis of suitable theoretical grounds, we study and propose Antennas
for the generation, in Acoustics, of Non-Diffracting Beams of ultrasound. We
start considering for instance a frequency of about 40 kHz, and foresee fair
results even for finite apertures endowed with reasonable diameters (e.g., of 1
m), having... | 1411.3340v1 |
2016-06-07 | Oscillatory Localization of Quantum Walks Analyzed by Classical Electric Circuits | We examine an unexplored quantum phenomenon we call oscillatory localization,
where a discrete-time quantum walk with Grover's diffusion coin jumps back and
forth between two vertices. We then connect it to the power dissipation of a
related electric network. Namely, we show that there are only two kinds of
oscillating... | 1606.02136v3 |
2016-12-17 | Contact resistance between two REBCO tapes under load and load-cycles | No-insulation (NI) REBCO magnets have many advantages. They are
self-protecting, therefore do not need quench detection and protection which
can be very challenging in a high Tc superconducting magnet. Moreover, by
removing insulation and allowing thinner copper stabilizer, NI REBCO magnets
have significantly higher en... | 1701.00447v2 |
2017-01-07 | A quantitative description of Nernst effect in high-temperature superconductors | A quantitative vortex-fluid model for flux-flow resistivity $\rho$ and Nernst
signal $e_N$ in high-temperature superconductors (HTSC) is proposed. Two kinds
of vortices, magnetic and thermal, are considered, and the damping viscosity
$\eta$ is modeled by extending the Bardeen-Stephen model to include the
contributions ... | 1701.01832v1 |
2018-11-08 | Temperature dependence of side-jump spin Hall conductivity | In the conventional paradigm of the spin Hall effect, the side-jump
conductivity due to electron-phonon scattering is regarded to be temperature
independent. To the contrary, we draw the distinction that, while this
side-jump conductivity is temperature independent in the classical
equipartition regime where the longit... | 1811.03229v6 |
2019-07-28 | Quantum critical fluctuations, Planckian dissipation, and compactification scale | The most striking result here is that the notion of Planckian dissipation is
also applicable to the $c$-axis resistivity of the high temperature cuprate
superconductors, and to my knowledge this aspect has not been previously
addressed. The derivation involves Kubo formula and does not require any
mechanism beyond a no... | 1907.12163v2 |
2020-02-10 | Anomalous Nematic States in High Half-Filled Landau Levels | It is well established that the ground states of a two-dimensional electron
gas with half-filled high ($N \ge 2$) Landau levels are compressible
charge-ordered states, known as quantum Hall stripe (QHS) phases. The generic
features of QHSs are a maximum (minimum) in a longitudinal resistance $R_{xx}$
($R_{yy}$) and a n... | 2002.03964v2 |
2020-02-16 | Study of Position Sensitive Silicon Detector (PSD) for SiW-ECAL at ILC | We are developing position sensitive silicon detectors (PSDs) which have an
electrode at each of four corners so that incident position of a charged
particle can be obtained with signal from the electrodes. It is expected that
the position resolution of the electromagnetic calorimeter (ECAL) of the ILD
detector will be... | 2002.06534v2 |
2020-03-23 | Multi-Terminal DC Fault Identification for MMC-HVDC Systems based on Modal Analysis -- A Localized Protection Scheme | We propose a localized protection scheme based on modal analysis in
multi-terminal modular multilevel converter (MMC) based high voltage DC (HVDC)
systems. The paper addresses the issues of localized protection scheme based DC
fault identification, such as differentiating between external and internal
faults, classific... | 2003.10145v2 |
2022-01-31 | Accelerated 3D Electrical Resistivity Tomography with a Scalable Jacobian-free Approach | A Jacobian-free inversion method is presented to accelerate Electrical
Resistivity Tomography (ERT) for shallow aquifer characterization. The ERT
problem typically implements the adjoint state method to efficiently compute
Jacobian during the inversion. However, the adjoint state method needs
intrusive forward model co... | 2202.00059v1 |
2014-01-02 | Electrolyte gate dependent high-frequency measurement of graphene field-effect transistor for sensing applications | We performed radiofrequency (RF) reflectometry measurements at 2.4 GHz on
electrolyte-gated graphene field-effect transistors (GFETs) utilizing a tunable
stub-matching circuit for impedance matching. We demonstrate that the gate
voltage dependent RF resistivity of graphene can be deduced even in the
presence of the ele... | 1401.0381v1 |
2016-03-16 | The "ideal" tearing mode: theory and resistive MHD simulations | Classical MHD reconnection theories, both the stationary Sweet-Parker model
and the tearing instability, are known to provide rates which are too slow to
explain the observations. However, a recent analysis has shown that there
exists a critical threshold on current sheet's thickness, namely a/L~S^(-1/3),
beyond which ... | 1603.04995v1 |
2017-05-15 | Mathematical Analysis of the Probability of Spontaneous Mutations in HIV-1 Genome and Their Role in the Emergence of Resistance to Anti-Retroviral Therapy | $\textbf{Background:}$ High mutability of HIV is the driving force of
antiretroviral drug resistance, which represents a medical care challenge.
$\textbf{Method and Model Equation:}$ To detect the mutability of each gene
in the HIV-1 genome; a mathematical analysis of HIV-1 genome is performed,
depending on a linear ... | 1705.06132v1 |
2017-08-05 | Copper-oxide Nanowires based Humidity Sensor | This paper presents investigated results of copper-oxide nanowires used as a
humidity sensor. Copper-oxide nanowires films were grown over cross-comb type
gold electrodes on a SiO2 substrate using thermal annealing technique, and its
humidity sensitive characteristics were investigated through resistance across
the gol... | 1708.01720v1 |
2018-08-03 | An All-Electric Single-Molecule Hybridisation Detector for short DNA Fragments | In combining DNA nanotechnology and high-bandwidth single-molecule detection
in nanopipettes, we demonstrate an all-electric, label-free hybridisation
sensor for short DNA sequences (< 100 nt). Such short fragments are known to
occur as circulating cell-free DNA in various bodily fluids, such as blood
plasma and saliva... | 1808.01168v1 |
2018-08-23 | An explicit divergence-free DG method for incompressible magnetohydrodynamics | We extend the recently introduced explicit divergence-free DG scheme for
incompressible hydrodynamics [arXiv:1808.04669]. to the incompressible
magnetohydrodynamics (MHD). A globally divergence-free finite element space is
used for both the velocity and the magnetic field. Highlights of the scheme
includes global and l... | 1808.08119v1 |
2019-08-13 | Study of Particle Multiplicity of Cosmic Ray Events using 2m$\times$2m Resistive Plate Chamber Stack at IICHEP-Madurai | An experimental setup consisting of 12 layers of glass Resistive Plate
Chambers (RPCs) of size 2\,m\,$\times$\,2\,m has been built at IICHEP-Madurai
(\ang{9;56;14.5}\,N \ang{78;00;47.9}\,E, on the surface) to study the long term
performance and stability of RPCs produced on large scale in Indian industry.
This setup ha... | 1908.04589v5 |
2011-04-11 | Resistively detected nuclear magnetic resonance via a single InSb two-dimensional electron gas at high temperature | We report on the demonstration of the resistively detected nuclear magnetic
resonance (RDNMR) of a single InSb two-dimensional electron gas (2DEG) at
elevated temperatures up to 4 K. The RDNMR signal of 115In in the simplest
pseudospin quantum Hall ferromagnet triggered by a large direct current shows a
peak-dip line s... | 1104.1826v1 |
2012-03-23 | Transport Measurements on Nano-engineered Two Dimensional Superconducting Wire Networks | Superconducting triangular Nb wire networks with high normal-state resistance
are fabricated by using a negative tone hydrogen silsesquioxane (HSQ) resist.
Robust magnetoresistance oscillations are observed up to high magnetic fields
and maintained at low temperatures, due to the eective reduction of wire
dimensions. W... | 1203.5163v1 |
2015-04-03 | Energy-efficient hybrid spintronic-straintronic reconfigurable bit comparator | We propose a reconfigurable bit comparator implemented with a nanowire spin
valve whose two contacts are magnetostrictive with bistable magnetization.
Reference and input bits are "written" into the magnetization states of the two
contacts with electrically generated strain and the spin-valve's resistance is
lowered if... | 1504.00952v2 |
2020-01-09 | Coupling loss at the end connections of REBCO stacks: 2D modelling and measurement | In high power density superconducting motors, superconducting tapes are
usually stacked and connected together at terminals to improve the current
capacity. When a parallel sinusoidal magnetic field is applied on this
partially coupled stack, the coupling current is induced and causes additional
coupling loss. Usually ... | 2001.02866v1 |
2020-05-22 | Aging Study on Resistive Plate Chambers of the CMS Muon Detector for HL-LHC | In the High Luminosity Large Hadron Collider (HL-LHC) program, during the
next years, the instantaneous luminosity will increase up to 5 $\times$
10$^{34}$ cm$^{-2}$ s$^{-1}$ which means a factor five higher than the nominal
LHC. In that period, the present CMS Resistive Plate Chambers (RPC) system will
be subjected to... | 2005.11397v2 |
2020-06-03 | Suppression of Gate Screening on Edge Magnetoplasmons by Highly Resistive ZnO Gate | We investigate a way to suppress high-frequency coupling between a gate and
low-dimensional electron systems in the gigahertz range by measuring the
velocity of edge magnetoplasmons (EMPs) in InAs quantum Hall systems.We compare
the EMPvelocity in three samples with different electromagnetic
environments-one has a high... | 2006.01996v1 |
2020-06-05 | PLANS: Robust Program Learning from Neurally Inferred Specifications | Recent years have seen the rise of statistical program learning based on
neural models as an alternative to traditional rule-based systems for
programming by example. Rule-based approaches offer correctness guarantees in
an unsupervised way as they inherently capture logical rules, while neural
models are more realisti... | 2006.03312v1 |
2020-07-15 | Model predictive control of resistive wall mode for ITER | Active feedback stabilization of the dominant resistive wall mode (RWM) for
an ITER H-mode scenario at high plasma pressure using infinite-horizon model
predictive control (MPC) is presented. The MPC approach is closely-related to
linear-quadratic-Gaussian (LQG) control, improving the performance in the
vicinity of con... | 2007.07544v2 |
2021-03-02 | Numerical Qualification of Eco-Friendly Gas Mixtures for Avalanche-Mode Operation of Resistive Plate Chambers in INO-ICAL | Numerical qualification of an eco-friendly alternative gas mixture for
avalanche mode operation of Resistive Plate Chambers is the soul of this work.
To identify the gas mixture, a numerical model developed elsewhere by the
authors has been first established by comparing the simulated figure of merits
(efficiency and s... | 2103.01906v2 |
2021-03-17 | Comprehensive study of out-of-plane transport properties in BaFe$_{2}$As$_{2}$: Three-dimensional electronic state and effect of chemical substitution | We investigated the out-of-plane transport properties of parent and
chemically substituted BaFe$_{2}$As$_{2}$ for various types of substitution.
Based on the studies of Hall coefficient and chemical-substitution effect, we
have clarified the origin for the unusual temperature dependence of
out-of-plane resistivity $\rh... | 2103.09700v1 |
2021-04-30 | Open-Source Memory Compiler for Automatic RRAM Generation and Verification | The lack of open-source memory compilers in academia typically causes
significant delays in research and design implementations. This paper presents
an open-source memory compiler that is directly integrated within the Cadence
Virtuoso environment using physical verification tools provided by Mentor
Graphics (Calibre).... | 2104.14885v1 |
2021-08-19 | Monarch: A Durable Polymorphic Memory For Data Intensive Applications | 3D die stacking has often been proposed to build large-scale DRAM-based
caches. Unfortunately, the power and performance overheads of DRAM limit the
efficiency of high-bandwidth memories. Also, DRAM is facing serious scalability
challenges that make alternative technologies more appealing. This paper
examines Monarch, ... | 2108.08497v1 |
2021-08-19 | Induced superconducting pairing in integer quantum Hall edge states | Indium Arsenide (InAs) near surface quantum wells (QWs) are promising for the
fabrication of semiconductor-superconductor heterostructures given that they
allow for a strong hybridization between the two-dimensional states in the
quantum well and the ones in the superconductor. In this work we present
results for InAs ... | 2108.08899v3 |
2021-12-26 | Self-discharge by streaming cosmic rays | A new nonthermal phenomenon caused by streaming cosmic rays (CRs) in the
universe is proposed. The streaming CRs drive the return current of thermal
electrons to compensate for the CR current. Then, electric fields are induced
by the resistivity of the return current. It is shown that the resistive
electric fields can ... | 2112.13395v2 |
2022-01-03 | Performance of a prototype bakelite RPC at GIF++ using self-triggered electronics for the CBM Experiment at FAIR | The Muon Chamber (MuCh) is a sub-system of the Compressed Baryonic Matter
(CBM) experiment for the detection of low-mass-vector mesons produced in high
energy heavy-ion collisions at beam energies ranging from 2 AGeV to 11 AGeV and
decaying in the di-muon channel. MuCh consists of a segmented absorber and four
detector... | 2201.00661v1 |
2022-01-21 | Multidimensional minimum-work control of a 2D Ising model | A system's configurational state can be manipulated using dynamic variation
of control parameters, such as temperature, pressure, or magnetic field; for
finite-duration driving, excess work is required above the equilibrium
free-energy change. Minimum-work protocols in multidimensional
control-parameter space have pote... | 2201.08925v2 |
2022-03-14 | Planckian Dissipation and non-Ginzburg-Landau Type Upper Critical Field in Bi2201 | Resistivity and Hall effect measurements have been carried out on a
micro-fabricated bridge of Bi2201 single crystal at low temperatures down to
0.4 K under high magnetic fields. When superconductivity is crashed by a high
magnetic field, the recovered "normal state" resistivity still shows a linear
temperature depende... | 2203.06879v3 |
2022-04-04 | Optimisation of Operating High Voltage of the large area Resistive Plate Chamber for ICAL experiment | The Resistive Plate Chamber is a widely used detector in high energy physics.
The operating potential of this chamber is determined by the optimisation of
the efficiency and noise rate of the device. This optimisation is based on the
assumption that the performance of the device over the whole surface area is
uniform. ... | 2204.01251v1 |
2022-04-05 | An optical transition-edge sensor with high energy resolution | Optical transition-edge sensors have shown energy resolution for resolving
the number of incident photons at the telecommunication wavelength. Higher
energy resolution is required for biological imaging and microscope
spectroscopy. In this paper, we report on a Au/Ti (10/20 nm) bilayer TES that
showed high energy resol... | 2204.01903v1 |
2022-05-05 | Precursor superconducting effects in the optimally doped YBa$_2$Cu$_3$O$_{7-δ}$ superconductor: the confrontation between superconducting fluctuations and percolative effects revisited | The confrontation between the superconducting fluctuations and percolation
effects as the origin of the in-plane paraconductivity in cuprate
superconductors was earlier addressed at a quantitative level in the case of
the optimally doped YBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO) compound. Using in-plane
resistivity data from ... | 2205.02812v1 |
2022-08-31 | Ferroelectric FET-based strong physical unclonable function: a low-power, high-reliable and reconfigurable solution for Internet-of-Things security | Hardware security has been a key concern in modern information technologies.
Especially, as the number of Internet-of-Things (IoT) devices grows rapidly, to
protect the device security with low-cost security primitives becomes
essential, among which Physical Unclonable Function (PUF) is a widely-used
solution. In this ... | 2208.14678v1 |
2023-04-28 | The Volume of Healthy Red Blood Cells is Optimal for Advective Oxygen Transport in Arterioles | Red blood cells (RBCs) are vital for transporting oxygen from the lungs to
the body's tissues through the intricate circulatory system. They achieve this
by binding and releasing oxygen molecules to the abundant hemoglobin within
their cytosol. The volume of RBCs affects the amount of oxygen they can carry,
yet whether... | 2305.02197v2 |
2023-06-04 | Observations of the Current Sheet Heating in X-ray during a Solar Flare | In the solar corona, magnetic reconnection occurs due to the finite
resistivity of the plasma. At the same time, resistivity leads to ohmic
heating. Therefore, the reconnecting current sheet should heat the surrounding
plasma. This paper presents experimental evidence of such plasma heating caused
by magnetic reconnect... | 2306.02355v1 |
2023-10-18 | Thermo-electric Transport of Dyonic Gubser-Rocha Black Holes | We study the thermo-electric transport coefficients of an extended version of
the Gubser-Rocha model. After reviewing the two relaxation time model from
holography and studying the effect of the magnetic field on thermo-electric
transports from hydrodynamic theory, we present a new dilatonic dyonic
asymptotically AdS b... | 2310.12067v1 |
2024-01-24 | Heterogeneously Integrated Laser on Silicon with Non-Volatile Wavelength Tuning | The von-Neumann bottleneck has constrained computing systems from efficiently
operating on the increasingly large demand in data from networks and devices.
Silicon (Si) photonics offers a powerful solution for this issue by providing a
platform for high-bandwidth, energy-efficient interconnects. Furthermore,
memristors... | 2401.13757v1 |
2024-03-29 | Deepfake Sentry: Harnessing Ensemble Intelligence for Resilient Detection and Generalisation | Recent advancements in Generative Adversarial Networks (GANs) have enabled
photorealistic image generation with high quality. However, the malicious use
of such generated media has raised concerns regarding visual misinformation.
Although deepfake detection research has demonstrated high accuracy, it is
vulnerable to a... | 2404.00114v1 |
2011-03-05 | Physics and measurements of magnetic materials | Magnetic materials, both hard and soft, are used extensively in several
components of particle accelerators. Magnetically soft iron-nickel alloys are
used as shields for the vacuum chambers of accelerator injection and extraction
septa; Fe-based material is widely employed for cores of accelerator and
experiment magnet... | 1103.1069v1 |
2021-03-14 | JAMIP: an artificial-intelligence aided data-driven infrastructure for computational materials informatics | Materials informatics has emerged as a promisingly new paradigm for
accelerating materials discovery and design. It exploits the intelligent power
of machine learning methods in massive materials data from experiments or
simulations to seek for new materials, functionality, principles, etc.
Developing specialized facil... | 2103.07957v1 |
2010-07-08 | A Model of the Number of Antibiotic Resistant Bacteria in Rivers | The large reservoir of antibiotic resistant bacteria in raw and treated water
supplies is a matter of public health concern. Currently, the National
Antimicrobial Resistance Monitoring Systems, a collaborative effort of the
Centers for Disease Control, the US Department of Agriculture, and the US Food
and Drug Administ... | 1007.1383v1 |
2024-01-02 | A comparative study of resistivity models for simulations of magnetic reconnection in the solar atmosphere. II. Plasmoid formation | Plasmoid-mediated reconnection plays a fundamental role in different solar
atmospheric phenomena. Numerical reproduction of this process is therefore
essential for developing robust solar models. Our goal is to assess
plasmoid-mediated reconnection across various numerical resistivity models in
order to investigate how... | 2401.01177v1 |
2007-11-20 | Induction of nuclear fission by high-voltage application | In nuclear power generation, fissile materials are mainly used. For example,
$U^{235}$ is fissile and therefore quite essential for use of nuclear energy.
However, the material $U^{235}$ has very small natural abundance less than 1 %.
We should seek possibility of utilizing fissionable materials such as $U^{238}$
becau... | 0711.3153v1 |
2020-06-17 | Simulation of Particle-Material Interactions | This paper gives an overview of the particle transport theory essentials, the
basics of particle-material interaction simulation, physical quantities needed
to simulate particle transport and interactions in materials, Monte Carlo
simulation flow, response of additive detectors, statistical weights and other
techniques... | 2006.09866v1 |
2003-03-04 | Accretion of low angular momentum material onto black holes: 2D magnetohydrodynamical case | We report on the second phase of our study of slightly rotating accretion
flows onto black holes. We consider magnetohydrodynamical (MHD) accretion flows
with a spherically symmetric density distribution at the outer boundary, but
with spherical symmetry broken by the introduction of a small,
latitude-dependent angular... | 0303093v1 |
2002-05-17 | A systematic study of four series of electron-doped rare earth manganates, LnxCa1-xMnO3 (Ln=La, Nd, Gd and Y) over the x=0.02-0.25 composition range | Electrical and magnetic properties of four series of manganates LnxCa1-xMnO3
(Ln=La, Nd, Gd and Y) have been studied in the electron doped regime
(x=0.02-0.25) in order to investigate the various inter-dependent phenomena
such as ferromagnetism, phase separation and charge ordering. The general
behavior of all the four... | 0205370v2 |
2017-10-25 | NaSn2As2: An Exfoliatable Layered van der Waals Zintl Phase | The discovery of new families of exfoliatable 2D crystals that have diverse
sets of electronic, optical, and spin-orbit coupling properties, enables the
realization of unique physical phenomena in these few-atom thick building
blocks and in proximity to other materials. Herein, using NaSn2As2 as a model
system, we demo... | 1710.09059v1 |
2017-12-06 | Interfacial Strain Effects on Lithium Diffusion Pathways in the Spinel Solid Electrolyte Li-Doped MgAl$_2$O$_4$ | (Li,Al)-co-doped magnesium spinel (Li$_x$Mg$_{1-2x}$Al$_{2+x}$O$_4$) is a
solid lithium-ion electrolyte with potential use in all-solid-state lithium-ion
batteries. Interfaces with spinel electrodes, such as Li$_y$Mn$_2$O$_4$ and
Li$_{4+3z}$Ti$_5$O$_{12}$, may be lattice-matched, with potentially low
interfacial resist... | 1712.02156v3 |
2022-01-20 | Pseudo-hydrodynamic flow of quasiparticles in semimetal WTe2 at room temperature | Recently, much interest has emerged in fluid-like electric charge transport
in various solid-state systems. The hydrodynamic behavior of the electronic
fluid reveals itself as a decrease of the electrical resistance with increasing
temperature (the Gurzhi effect) in narrow conducting channels, polynomial
scaling of the... | 2201.08331v1 |
2022-08-19 | Electron transport properties of a narrow-bandgap semiconductor Bi$_2$O$_2$Te nanosheet | A thin, narrow-bandgap semiconductor Bi$_2$O$_2$Te nanosheet is obtained via
mechanical exfoliation and a Hall-bar device is fabricated from it on a heavily
doped Si/SiO$_2$ substrate and studied at low temperatures. Gate transfer
characteristic measurements show that the transport carriers in the nanosheet
are of $n$-... | 2208.09361v1 |
2022-10-20 | Seebeck coefficient in a nickelate superconductor: electronic dispersion in the strange metal phase | Superconducting nickelates are a new family of materials that combine
strongly-correlated magnetism with unconventional superconductivity. While
comparisons with the superconducting cuprates are natural, very little is known
about the metallic state of the nickelates, making these comparisons difficult.
We probe the el... | 2210.10987v2 |
2023-04-19 | Realization of Z$_2$ Topological Metal in Single-Crystalline Nickel Deficient NiV$_2$Se$_4$ | Temperature-dependent electronic and magnetic properties are reported for a
Z2 topological metal single-crystalline nickel-deficient NiV$_2$Se$_4$. It is
found to crystallize in the monoclinic Cr3S4 structure type with space group
I2=m. From single-crystal x-ray diffraction, we find that there are vacancies
on the Ni s... | 2304.09357v1 |
2024-05-17 | Unconventional Unidirectional Magnetoresistance in vdW Heterostructures | Electrical readout of magnetic states is a key to realize novel spintronics
devices for efficient computing and data storage. Unidirectional
magnetoresistance (UMR) in bilayer systems, consisting of a spin source
material and a magnetic layer, refers to a change in the longitudinal
resistance upon the reversal of magne... | 2405.10889v1 |
2024-05-21 | Spin-polarized p-wave superconductivity in the kagome material RbV$_3$Sb$_5$ | The study of kagome materials has attracted much attention in the past few
years due to the presence of many electron-electron interaction-driven phases
in a single material.In this work, we report the discovery of intrinsic
spin-polarized p-wave superconductivity in the thin-flake kagome material
RbV$_3$Sb$_5$. Firstl... | 2405.12592v1 |
2003-10-07 | Study of coupling loss on bi-columnar BSCCO/Ag tapes by a.c. susceptibility measurements | Coupling losses were studied in composite tapes containing superconducting
material in the form of two separate stacks of densely packed filaments
embedded in a metallic matrix of Ag or Ag alloy. This kind of sample geometry
is quite favorable for studying the coupling currents and in particular the
role of superconduc... | 0310158v1 |
2007-05-11 | Electrical transport and optical studies of ferromagnetic Cobalt doped ZnO nanoparticles exhibiting a metal-insulator transition | The observed correlation of oxygen vacancies and room temperature
ferromagnetic ordering in Co doped ZnO1-o nanoparticles reported earlier (Naeem
et al Nanotechnology 17, 2675-2680) has been further explored by transport and
optical measurements. In these particles room temperature ferromagnetic
ordering had been obser... | 0705.1593v3 |
2008-01-08 | Impact of silver addition on room temperature magneto-resistance in La0.7Ba0.3MnO3 (LBMO): Agx (x = 0.0, 0.1, 0.2, 0.3, 0.4) | La0.7Ba0.3MnO3 (LBMO):Agx (x = 0.0, 0.1, 0.2, 0.3, and 0.4) composites are
synthesized by solid-state reaction route, the final sintering temperatures are
varied from 1300 (LBMO1300Ag) to 1400 0C (LBMO1400Ag), and their physical
properties are compared as a function of temperature and Ag content. All
samples are crysta... | 0801.1162v1 |
2011-05-31 | Evidence of electronic phase arrest and glassy ferromagnetic behaviour in (Nd0.4Gd0.3)Sr0.3MnO3 manganite : Comparative study between bulk and nanometric samples | The effect of doping of rare earth Gd 3+ ion replacing Nd 3+ in
Nd0.7Sr0.3MnO3 is investigated in details. Measurements of resistivity,
magnetoresistance, magnetization, linear and non linear ac magnetic
susceptibility on chemically synthesized (Nd0.7-xGdx)Sr0.3MnO3 shows various
interesting features with doping level ... | 1105.6284v2 |
2013-06-11 | Generation of concentration density maxima of small dispersive coal dust particles in horizontal iodine air filter at air-dust aerosol blow | The spatial distributions of the small dispersive coal dust particles with
the nano and micro sizes in the granular filtering medium with the cylindrical
coal granules in the absorber in the horizontal iodine air filter during its
long term operation at the nuclear power plant are researched. It is shown that
the conce... | 1306.2853v1 |
2019-09-19 | Improving wafer-scale Josephson junction resistance variation in superconducting quantum coherent circuits | Quantum bits, or qubits, are an example of coherent circuits envisioned for
next-generation computers and detectors. A robust superconducting qubit with a
coherent lifetime of $O$(100 $\mu$s) is the transmon: a Josephson junction
functioning as a non-linear inductor shunted with a capacitor to form an
anharmonic oscill... | 1909.09165v2 |
2014-08-11 | Synchronization of pairwise-coupled, identical, relaxation oscillators based on metal-insulator phase transition devices: A Model Study | Computing with networks of synchronous oscillators has attracted wide-spread
attention as novel materials and device topologies have enabled realization of
compact, scalable and low-power coupled oscillatory systems. Of particular
interest are compact and low-power relaxation oscillators that have been
recently demonst... | 1408.2582v1 |
2014-08-13 | Ferromagnetism, insulator-metal transition and magnetotransport in Pr0.58Ca0.42MnO3 films: role of microstructural perturbations | Magnetic and magnetotransport properties of oriented polycrystalline
Pr0.58Ca0.42MnO3 thin films prepared in flowing oxygen and air ambient has been
investigated. The magnetic ground state of both the films is a frozen cluster
glass. In the air annealed film charge order (CO) is quenched and ferromagnetic
(FM) transiti... | 1408.2979v1 |
2019-12-17 | Metal-to-insulator transition in Pt-doped TiSe$_2$ driven by emergent network of narrow transport channels | Metal-to-insulator transitions (MIT) can be driven by a number of different
mechanisms, each resulting in a different type of insulator -- Change in
chemical potential can induce a transition from a metal to a band insulator;
strong correlations can drive a metal into a Mott insulator with an energy gap;
an Anderson tr... | 1912.08246v2 |
2020-06-23 | Electron doping of the layered nickelate La$_4$Ni$_3$O$_{10}$ by aluminum substitution: A combined experimental and DFT study | The physical properties of La$_4$Ni$_3$O$_{10}$ with a 2D-like
Ruddlesden-Popper-type crystal structure are extraordinarily dependent on
temperature and chemical substitution. By introducing Al$^{3+}$ atoms ($x$)
randomly at the Ni-sites, the average oxidation state for the two
non-equivalent Ni-cations is tuned and ad... | 2006.12854v1 |
2021-06-03 | A data mining approach for improved interpretation of ERT inverted sections using the DBSCAN clustering algorithm | SUMMARY Geophysical imaging using the inversion procedure is a powerful tool
for the exploration of the Earth's subsurface. However, the interpretation of
inverted images can sometimes be difficult, due to the inherent limitations of
existing inversion algorithms, which produce smoothed sections. In order to
improve an... | 2106.01673v1 |
2022-03-13 | Colossal transverse magnetoresistance due to nematic superconducting phase fluctuations in a copper oxide | Electronic anisotropy (or `nematicity') has been detected in all main
families of cuprate superconductors by a range of experimental techniques --
electronic Raman scattering, THz dichroism, thermal conductivity, torque
magnetometry, second-harmonic generation -- and was directly visualized by
scanning tunneling micros... | 2203.06769v1 |
2022-04-06 | Planckian properties of 2D semiconductor systems | We describe and discuss the low-temperature resistivity (and the
temperature-dependent inelastic scattering rate) of several different doped 2D
semiconductor systems from the perspective of the Planckian hypothesis
asserting that $\hbar/\tau =k_\mathrm{B}T$ provides a scattering bound, where
$\tau$ is the appropriate r... | 2204.02982v3 |
2022-06-18 | Radiation resistance in simulated metallic core-shell nanoparticles | We present molecular dynamics (MD) simulations of radiation damage in pure Fe
nanoparticles (NP) and bimetallic FeCu core-shell nanoparticles (CSNP). The
CSNP includes a perfect body centered cubic (bcc) Fe core coated with a
face-centered cubic (fcc) Cu shell. Irradiation with Fe Primary Knock-on Atoms
(PKA) with ener... | 2206.09063v2 |
2022-10-31 | Modeling disks and magnetic outflows around a forming massive star: I. Investigating the two layer-structure of the accretion disk | Like their lower mass siblings, massive protostars can be expected to: a) be
surrounded by circumstellar disks and b) launch magnetically-driven jets and
outflows. The disk formation and global evolution is thereby controlled by
advection of angular momentum from large scales, the efficiency of magnetic
braking and the... | 2210.17220v1 |
2023-01-05 | Self-Assembly of Soot Nanoparticles on the Surface of Resistively Heated Carbon Microtubes in Near-Hexagonal Arrays of Micropyramids | Almost regular hexagonal arrays of a few micrometers tall and wide
micropyramids consisting of soot nano-particles are formed on the surface of
graphitized hollow filaments, which are resistively heated to
~1800$^\circ$C-2400$^\circ$C in an Ar atmosphere containing trace amounts of
oxygen (~300 p.p.m.). At the higher t... | 2301.05023v1 |
2023-03-19 | Disentangling superconductor and dielectric microwave losses in sub-micron $\rm Nb$/$\rm TEOS-SiO_2$ interconnects using a multi-mode microstrip resonator | Understanding the origins of power loss in superconducting interconnects is
essential for the energy efficiency and scalability of superconducting digital
logic. At microwave frequencies, power dissipates in both the dielectrics and
superconducting wires, and these losses can be of comparable magnitude. A novel
method ... | 2303.10685v1 |
2023-07-31 | Semiconducting transport in Pb$_{10-x}$Cu$_x$(PO$_4$)$_6$O sintered from Pb$_2$SO$_5$ and Cu$_3$P | The very recent claim on the discovery of ambient-pressure room-temperature
superconductivity in modified lead-apatite has immediately excited sensational
attention in the entire society, which is fabricated by sintering lanarkite
(Pb2SO5) and copper(I) phosphide (Cu$_3$P). To verify this exciting claim, we
have succes... | 2307.16802v1 |
2023-08-11 | Observation of integer and fractional quantum anomalous Hall effects in twisted bilayer MoTe2 | The interplay between strong correlations and topology can lead to the
emergence of intriguing quantum states of matter. One well-known example is the
fractional quantum Hall effect, where exotic electron fluids with fractionally
charged excitations form in partially filled Landau levels. The emergence of
topological m... | 2308.06177v3 |
2023-10-15 | Structural and physical properties of the chiral antiferromagnet CeRhC$_2$ | We report a study of the structural, magnetic, transport, and thermodynamic
properties of polycrystalline samples of CeRhC$_2$. CeRhC$_2$ crystallizes in a
tetragonal structure with space group $P4_1$ and it orders
antiferromagnetically below $T_\textrm{N1} \approx$ 1.8 K. Powder neutron
diffraction measurements reveal... | 2310.09904v1 |
2023-12-16 | Multiple magnetic transitions, metamagnetism and large magnetoresistance in GdAuGe single crystals | We report the physical properties of GdAuGe single crystals, which were grown
using Bi flux. The powder x-ray diffraction data shows that the compound
crystallizes in hexagonal NdPtSb-type structure (space group P63mc).
Magnetization measurements performed for field configuration H||c and H||ab
show that GdAuGe orders ... | 2312.10352v1 |
2024-01-31 | Effect of annealing on the corrosion-fatigue strength and hot salt corrosion resistance of fine-grained titanium near-α alloy Ti-5Al-2V obtained by Rotary Swaging | The corrosion-fatigue strength in 3% aqueous NaCl solution and the resistance
against hot salt corrosion (HSC) of the fine-grained near-a alloy Ti-5Al-2V
(Russian analog of Grade 9 titanium alloy with increased aluminum content) has
been studied. The properties of the Ti-5Al-2V alloy in the coarse-grained
state, in the... | 2401.17659v1 |
2024-02-18 | Combined X-ray diffraction, electrical resistivity, and $ab$ $initio$ study of (TMTTF)$_2$PF$_6$ under pressure: implications to the unified phase diagram | We present a combined experimental and theoretical study on the
quasi-one-dimensional organic conductor (TMTTF)$_2$PF$_6$, and elucidate the
variation of its physical properties under pressure. We fully resolve the
crystal structure by single crystal x-ray diffraction measurements using a
diamond anvil cell up to 8 GPa... | 2403.13816v1 |
2024-03-29 | Heat Transfer Coefficients of Moving Particle Beds from Flow-Dependent Particle Bed Thermal Conductivity and Near-Wall Resistance | Determination of heat transfer coefficients for flowing packed particle beds
is essential to the design of particle heat exchangers, and other thermal
processes. While such dense granular flows fall into the well-known plug-flow
regime, the discrete nature of granular materials alters the thermal transport
processes in... | 2403.19892v2 |
2024-04-03 | Bacterial cell death: Atomistic simulations reveal pore formation as a mode of action of structurally nano engineered star peptide polymers | Multidrug resistance (MDR) to conventional antibiotics is one of the most
urgent global health threats, necessitating the development of effective and
biocompatible antimicrobial agents that are less inclined to provoke
resistance. Structurally Nanoengineered Antimicrobial Peptide Polymers (SNAPPs)
are a novel and prom... | 2404.02501v3 |
2019-07-30 | Investigating radiation damage in nuclear energy materials using JANNuS multiple ion beams | Ion accelerators have been used by material scientists for decades to
investigate radiation damage formation in nuclear materials and thus to emulate
neutron-induced changes. The versatility of conditions in terms of particle
energy, dose rate, fluence, etc., is a key asset of ion beams allowing for
fully instrumented ... | 1908.00627v1 |
1997-05-20 | Low-temperature resistivity of single crystals YBa_2Cu_3O_{6+x} in the normal state | A scan of the superconductor -- nonsuperconductor transformation in single
crystals YBa_2Cu_3O_{6+x} (x about 0.37) was done in two alternative ways,
namely, by applying the magnetic field and by reducing the hole concentration
through the oxygen rearrangement. The in-plane normal-state resistivity
\rho_{ab} obtained i... | 9705197v2 |
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