publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2022-11-17 | On universal butterfly and antisymmetric magnetoresistances | Butterfly magnetoresistance (BMR) and antisymmetric magnetoresistance (ASMR)
are about a butterfly-cross curve and a curve with one peak and one valley when
a magnetic field is swept up and down along a fixed direction. Other than the
parallelogram-shaped magnetoresistance-curve (MR-curve) often observed in
magnetic me... | 2211.09369v1 |
2009-03-16 | Interplay between magnetism and superconductivity and appearance of a second superconducting transition in alpha-FeSe at high pressure | We synthesized tetragonal alpha-FeSe by melting a powder mixture of iron and
selenium at high pressure. Subsequent annealing at normal pressure results in
removing traces of hexagonal beta- FeSe, formation of a rather sharp transition
to superconducting state at Tc ~ 7 K, and the appearance of a magnetic
transition nea... | 0903.2873v1 |
2022-05-19 | High pressure structural and magneto-transport studies on type-II Dirac semimetal candidate Ir2In8S: Emergence of superconductivity upon decompression | The structural and magneto-transport properties of type-II Dirac semimetal
candidate Ir2In8S have been investigated under high pressure. The ambient
tetragonal structure (P4_2/mnm) is found to be stable up to 7 GPa, above which
the system takes an orthorhombic Pnnm structure, possibly destroying the Dirac
cones due to ... | 2205.09798v1 |
2022-11-08 | Effective resistivity in relativistic collisionless plasmoid-mediated reconnection | Magnetic reconnection can power spectacular high-energy astrophysical
phenomena by producing non-thermal energy distributions in highly magnetized
regions around compact objects. By means of two-dimensional fully kinetic
particle-in-cell (PIC) simulations we investigate relativistic collisionless
plasmoid-mediated reco... | 2211.04553v1 |
2023-10-23 | Deep learning denoiser assisted roughness measurements extraction from thin resists with low Signal-to-Noise Ratio(SNR) SEM images: analysis with SMILE | The technological advance of High Numerical Aperture Extreme Ultraviolet
Lithography (High NA EUVL) has opened the gates to extensive researches on
thinner photoresists (below 30nm), necessary for the industrial implementation
of High NA EUVL. Consequently, images from Scanning Electron Microscopy (SEM)
suffer from red... | 2310.14815v1 |
2023-04-13 | Combining Electron-Phonon and Dynamical Mean-Field Theory Calculations of Correlated Materials: Transport in the Correlated Metal Sr$_2$RuO$_4$ | Electron-electron ($e$-$e$) and electron-phonon ($e$-ph) interactions are
challenging to describe in correlated materials, where their joint effects
govern unconventional transport, phase transitions, and superconductivity. Here
we combine first-principles $e$-ph calculations with dynamical mean field
theory (DMFT) as ... | 2304.06771v2 |
2011-07-13 | SDW transition of Fe1 zigzag chains and metamagnetic transition of Fe2 in TaFe$_{1+y}$Te$_3$ | We systematically study the AFM order of Fe1 zigzag chains and spin-flop of
excess Fe2 under high magnetic field H through the susceptibility,
magnetoresistance (MR), Hall effect and specific heat measurements in
high-quality single crystal TaFe$_{1+y}$Te$_3$. These properties suggest that
the high temperature AFM tran... | 1107.2561v1 |
2012-05-06 | Free-Electron Laser-Powered Electron Paramagnetic Resonance Spectroscopy | Electron paramagnetic resonance (EPR) spectroscopy interrogates unpaired
electron spins in solids and liquids to reveal local structure and dynamics;
for example, EPR has elucidated parts of the structure of protein complexes
that have resisted all other techniques in structural biology. EPR can also
probe the interpla... | 1205.1186v1 |
2014-02-10 | Development of CMOS pixel sensors for tracking and vertexing in high energy physics experiments | CMOS pixel sensors (CPS) represent a novel technological approach to building
charged particle detectors. CMOS processes allow to integrate a sensing volume
and readout electronics in a single silicon die allowing to build sensors with
a small pixel pitch ($\sim 20 \mu m$) and low material budget ($\sim 0.2-0.3\%
X_0$)... | 1402.2172v1 |
2020-04-23 | SENSEI: Direct-Detection Results on sub-GeV Dark Matter from a New Skipper-CCD | We present the first direct-detection search for eV-to-GeV dark matter using
a new ~2-gram high-resistivity Skipper-CCD from a dedicated fabrication batch
that was optimized for dark-matter searches. Using 24 days of data acquired in
the MINOS cavern at the Fermi National Accelerator Laboratory, we measure the
lowest r... | 2004.11378v3 |
2018-12-04 | Superconductivity at 250 K in lanthanum hydride under high pressures | The discovery of superconductivity at 203 K in H3S brought attention back to
conventional superconductors whose properties can be described by the
Bardeen-Cooper-Schrieffer (BCS) and the Migdal-Eliashberg theories. These
theories predict that high, and even room temperature superconductivity (RTSC)
is possible in metal... | 1812.01561v1 |
2021-09-18 | Microstructural engineering of medium entropy NiCo(CrAl) alloy for enhanced room and high-temperature mechanical properties | This work demonstrates the development of a strong and ductile medium entropy
alloy by employing conventional alloying and thermomechanical processing to
induce partial recrystallization (PR) and precipitation strengthening in the
microstructure. The combined usage of electron microscopy and atom probe
tomography revea... | 2109.08894v3 |
2022-10-07 | Fast time-domain current measurement for quantum dot charge sensing using a homemade cryogenic transimpedance amplifier | We developed a high-speed and low-noise time-domain current measurement
scheme using a homemade GaAs high-electron-mobility-transistor-based cryogenic
transimpedance amplifier (TIA). The scheme is versatile for broad cryogenic
current measurements, including semiconductor spin-qubit readout, owing to the
TIA's having l... | 2210.03333v1 |
2001-03-20 | Fully dense MgB_2 superconductor textured by hot deformation | Bulk textured MgB_2 material of nearly full density showing a weak c-axis
alignment of the hexagonal MgB_2 grains parallel to the pressure direction was
obtained by hot deformation of a stoichiometric MgB_2 pellet prepared by a
gas-solid reaction. The texture of the material was verified by comparing the
x-ray diffract... | 0103408v2 |
2004-11-22 | Quantized Failure Criteria and Indirect Observation for Predicting the Nanoscale Strength of Materials: The Example of the Ultra Nano Crystalline Diamond | In this paper theoretical and statistical/experimental criteria for
determining the nanoscale strength of materials are proposed. In particular,
quantized criteria in fracture mechanics, dynamic fracture mechanics and
fatigue, as well as an experimental indirect observation of the nanoscale
strength, are proposed. The ... | 0411556v1 |
2010-08-05 | Evaluation of the acoustic and non-acoustic properties of sound absorbing materials using a three-microphone impedance tube | This paper presents a straightforward application of an indirect method based
on a three-microphone impedance tube setup to determine the non-acoustic
properties of a sound absorbing porous material. First, a three-microphone
impedance tube technique is used to measure some acoustic properties of the
material (i.e., so... | 1008.0975v1 |
2011-02-20 | Intrinsic Correlation between Hardness and Elasticity in Polycrystalline Materials and Bulk Metallic Glasses | Though extensively studied, hardness, defined as the resistance of a material
to deformation, still remains a challenging issue for a formal theoretical
description due to its inherent mechanical complexity. The widely applied
Teter's empirical correlation between hardness and shear modulus has been
considered to be no... | 1102.4063v1 |
2014-07-05 | Large-scale BN tunnel barriers for graphene spintronics | We have fabricated graphene spin-valve devices utilizing scalable materials
made from chemical vapor deposition (CVD). Both the spin-transporting graphene
and the tunnel barrier material are CVD-grown. The tunnel barrier is realized
by h-BN, used either as a monolayer or bilayer and placed over the graphene.
Spin trans... | 1407.1439v1 |
2017-02-16 | Large elastic recovery of zinc dicyanoaurate | We report the mechanical properties of the `giant' negative compressibility
material zinc(II) dicyanoaurate, as determined using a combination of
single-crystal nanoindentation measurements and \emph{ab initio} density
functional theory calculations. While the elastic response of zinc
dicyanoaurate is found to be inter... | 1702.05145v1 |
2018-06-19 | Hydrodynamic Phonon Transport Perpendicular to Diffuse-Gray Boundaries | In this paper, we examine the application of an ideal phonon-hydrodynamic
material as the heat transfer medium between two non-hydrodynamic contacts with
a finite temperature difference. We use the integral-equation approach to solve
a modified phonon Boltzmann transport equation with the displaced Bose-Einstein
distri... | 1806.07345v3 |
2019-08-26 | One-pot synthesis: a simple and fast method to obtain ceramic superconducting materials | The one-pot method focuses on the reduction of the number of steps or
chemical reactions in the synthesis of materials, and it is very appealing in
terms of sustainability. In addition to this point of view, superconductors are
desired materials due to their unusual properties, such as the zero resistivity
and the perf... | 1908.09923v1 |
2018-07-16 | Tailoring Materials for Mottronics: Excess Oxygen Doping of a Prototypical Mott Insulator | The Mott transistor is a paradigm for a new class of electronic
devices---often referred to by the term Mottronics---, which are based on
charge correlations between the electrons. Since correlation-induced insulating
phases of most oxide compounds are usually very robust, new methods have to be
developed to push such ... | 1807.05724v1 |
2020-11-25 | Reconstructing the thermal phonon transmission coefficient at solid interfaces in the phonon transport equation | The ab initio model for heat propagation is the phonon transport equation, a
Boltzmann-like kinetic equation. When two materials are put side by side, the
heat that propagates from one material to the other experiences thermal
boundary resistance. Mathematically, it is represented by the reflection
coefficient of the p... | 2011.13047v2 |
2023-01-24 | Using Arduino in Physics Experiments:Determining the Speed of Sound in Air | Considering the 21st century skills and the importance of STEM education in
fulfilling these skills, it is clear that the course materials should be
materials that bring students together with technology and attract their
attention, apart from traditional materials. In addition, in terms of the
applicability of these m... | 2301.10325v1 |
2023-09-14 | Photo-induced reversible modification of the Curie-Weiss temperature in paramagnetic gadolinium compounds | Gadolinium oxyhydride GdHO is a photochromic material that darkens under
illumination and bleaches back by thermal relaxation. As an inorganic
photochromic material that can be easily deposited by magnetron sputtering,
GdHO has very interesting potential applications as a functional material,
specially for smart glazin... | 2309.07978v1 |
2024-01-26 | First-principles Methodology for studying magnetotransport in magnetic materials | Unusual magnetotransport behaviors such as temperature dependent negative
magnetoresistance(MR) and bowtie-shaped MR have puzzled us for a long time.
Although several mechanisms have been proposed to explain them, the absence of
comprehensive quantitative calculations has made these explanations less
convincing. In our... | 2401.15146v1 |
2024-03-29 | Computational Shape Derivatives in Heat Conduction: An Optimization Approach for Enhanced Thermal Performance | We analyze an optimization problem of the conductivity in a composite
material arising in a heat conduction energy storage problem. The model is
described by the heat equation that specifies the heat exchange between two
types of materials with different conductive properties with Dirichlet-Neumann
boundary conditions ... | 2403.20181v1 |
2002-05-30 | Tunability of High-Dielectric-Constant Materials from First Principles | A first-principles method, based on density functional perturbation theory,
is presented for computing the leading order tunability of
high-dielectric-constant materials. | 0205655v1 |
2024-05-28 | On the resistance regular graphs | For a connected graph $G$, its resistance matrix is denoted by $R(G)$. If all
the row(column) sums of $R(G)$ are equal, then $G$ is said to be resistance
regular. In $[13]$, J. Zhou et al. posed the question regarding the existence
of a non-regular resistance regular graph. In this article, we establish that
all resist... | 2405.18177v1 |
2005-06-29 | Galaxy formation and cosmic-ray acceleration in a magnetized universe | We study the linear magneto-hydrodynamical behaviour of a Newtonian cosmology
with a viscous magnetized fluid of finite conductivity and generalise the Jeans
instability criterion. The presence of the field favors the anisotropic
collapse of the fluid, which in turn leads to further magnetic amplification
and to an enh... | 0506742v1 |
1998-10-21 | Large scale instabilities in two-dimensional magnetohydrodynamics | The stability of a sheared magnetic field is analyzed in two-dimensional
magnetohydrodynamics with resistive and viscous dissipation. Using a
multiple-scale analysis, it is shown that at large enough Reynolds numbers the
basic state describing a motionless fluid and a layered magnetic field, becomes
unstable with respe... | 9810026v1 |
1997-11-19 | Intrinsic resistivity and the SO(5) theory of high-temperature superconductors | The topological structure of the order parameter in Zhang's SO(5) theory of
superconductivity allows for an unusual type of dissipation mechanism via which
current-carrying states can decay. The resistivity due to this mechanism, which
involves orientation rather than amplitude order-parameter fluctuations, is
calculat... | 9711193v2 |
1998-05-22 | reentrance effect in normal-metal/superconducting hybrid loops | We have measured the transport properties of two mesoscopic hybrid loops
composed of a normal-metal arm and a superconducting arm. The samples differed
in the transmittance of the normal/superconducting interfaces. While the low
transmittance sample showed monotonic behavior in the low temperature
resistance, magnetore... | 9805298v1 |
1998-12-20 | Comment on "Charged impurity scattering limited low temperature resistivity of low density silicon inversion layers" (Das Sarma and Hwang, cond-mat/9812216) | In a recent preprint cond-mat/9812216, Das Sarma and Hwang propose an
explanation of the sharp decrease in resistivity at low temperatures which has
been attributed to a transition to an unexpected conducting phase in dilute
high-mobility two-dimensional systems at B=0. In this Comment, we examine
whether their model i... | 9812331v1 |
1999-02-24 | Charge Relaxation and Dephasing in Coulomb Coupled Conductors | The dephasing time in coupled mesoscopic conductors is caused by the
fluctuations of the dipolar charge permitted by the long range Coulomb
interaction. We relate the phase breaking time to elementary transport
coefficients which describe the dynamics of this dipole: the capacitance, an
equilibrium charge relaxation re... | 9902320v1 |
1999-03-31 | Apparent Metallic Behavior at B = 0 of a two-dimensional electron system in AlAs | We report the observation of metallic-like behavior at low temperatures and
zero magnetic field in two dimensional (2D) electrons in an AlAs quantum well.
At high densities the resistance of the sample decreases with decreasing
temperature, but as the density is reduced the behavior changes to insulating,
with the resi... | 9903443v1 |
1999-04-05 | Spin Degree of Freedom in a Two-Dimensional Electron Liquid | We have investigated correlation between spin polarization and
magnetotransport in a high mobility silicon inversion layer which shows the
metal-insulator transition. Increase in the resistivity in a parallel magnetic
field reaches saturation at the critical field for the full polarization
evaluated from an analysis of... | 9904058v1 |
1999-06-17 | Systematic Evolution of the Magnetotransport Properties of Bi_{2}Sr_{2-x}La_{x}CuO_{6} with Carrier Concentration | We report that it is possible to obtain a series of high-quality crystals of
La-doped Bi-2201, of which the transport properties have been believed to be
"dirtier" than those of other cuprates. In our crystals, the normal-state
transport properties display behaviors which are in good accord with other
cuprates; for exa... | 9906268v1 |
2000-02-08 | Negative Pressure of Anisotropic Compressible Hall States : Implication to Metrology | Pressure, compressibility, and Hall conductance of anisotropic states at
higher Landau levels are computed. Pressure and compressibility become
negative. Hall conductance is unquantized and varies with filling factor. These
facts agree with the recent experimental observations of highly anisotropic
compressible states ... | 0002108v3 |
2000-12-08 | Pressure, Resistance, and Current Activation of Anisotropic Compressible Hall States | Thermodynamic and electric properties of anisotropic compressible Hall states
at higher Landau levels are studied using a mean field theory on the von
Neumann lattice basis. It is shown that resistances agree with the recent
experiments of anisotropic compressible states and the states have negative
pressure. As implic... | 0012133v1 |
2001-07-03 | Scaling Behavior of Anomalous Hall Effect and Longitudinal Nonlinear Response in High-Tc Superconductors | Based on existing theoretical model and by considering our longitudinal
nonlinear response function, we derive a nonliear equation in which the mixed
state Hall resistivity can be expressed as an analytical function of magnetic
field, temperature and applied current. This equation enables one to compare
quantitatively ... | 0107045v1 |
2001-07-06 | Current-Driven Conformational Changes, Charging and Negative Differential Resistance in Molecular Wires | We introduce a theoretical approach based on scattering theory and total
energy methods that treats transport non-linearities, conformational changes
and charging effects in molecular wires in a unified way. We apply this
approach to molecular wires consisting of chain molecules with different
electronic and structural... | 0107147v1 |
2001-07-17 | Analysis of the resistance in p-SiGe over a wide temperature range | The temperature dependence of a system exhibiting a `metal-insulator
transition in two dimensions at zero magnetic field' (MIT) is studied up to
90K. Using a classical scattering model we are able to simulate the
non-monotonic temperature dependence of the resistivity in the metallic high
density regime. We show that t... | 0107369v1 |
2001-09-27 | Enhanced paramagnetism of the 4d itinerant electrons in the rhodium oxide perovskite SrRhO3 | Polycrystalline rhodium(IV) oxide perovskite SrRhO3 was obtained by
high-pressure synthesis techniques, followed by measurements of the magnetic
susceptibility, electrical resistivity, and specific heat. The title compound
has five 4d-electrons per perovskite unit and shows Fermi-liquid behavior in
its electrical resis... | 0109522v2 |
2001-12-20 | Fluctuation induced hopping and spin polaron transport | We study the motion of free magnetic polarons in a paramagnetic background of
fluctuating local moments. The polaron can tunnel only to nearby regions of
local moments when these fluctuate into alignment. We propose this fluctuation
induced hopping as a new transport mechanism for the spin polaron. We calculate
the dif... | 0112385v1 |
2002-11-27 | Indications of coherence-incoherence crossover in layered transport | For many layered metals the temperature dependence of the interlayer
resistance has a different behavior than the intralayer resistance. In order to
better understand interlayer transport we consider a concrete model which
exhibits this behavior. A small polaron model is used to illustrate how the
interlayer transport ... | 0211612v1 |
2002-11-28 | Small polarons and c-axis transport in highly anisotropic metals | Motivated by the anomalous c-axis transport properties of the quasi
two-dimensional metal, $\rm Sr_2 Ru O_4$, and related compounds, we have
studied the interlayer hopping of single electrons that are coupled strongly to
c-axis bosons. We find a c-axis resistivity that reflects the in-plane
electronic scattering in the... | 0211675v1 |
2003-05-01 | Negative differential resistance due to the resonance coupling of a quantum-dot dimer | Electron tunneling through a coupled quantum-dot dimer under a dc-bias is
investigated. We find that a peak in the $I$-$V$ curve appears at low
temperature when two discrete electronic states in the two quantum dots are
aligned with each other -- resonance coupling. This leads to a negative
differential resistance. The... | 0305018v1 |
2003-08-06 | Measuring thermal conductivity in extreme conditions: sub-Kelvin temperatures and high (27 T) magnetic fields | We present a one-heater-two-thermometer set-up for measuring thermal
conductivity and electric resistivity of a bulk sample at low temperatures down
to 0.1 K and in magnetic fields up to 27 Tesla. The design overcomes the
difficulties emerging in the context of large water-cooled resistive magnets. | 0308106v1 |
2003-09-29 | Fluxon dynamics by microwave surface resistance measurements in MgB2 | Field-induced variations of the microwave surface resistance, Rs(H), have
been investigated in high-density ceramic MgB2. At low temperatures, several
peculiarities of the Rs(H) curves cannot be justified in the framework of
models reported in the literature. We suggest that they are ascribable to the
unconventional vo... | 0309654v1 |
2003-10-20 | Evidence for a quantum phase transition in the electron-doped cuprate Pr2-xCexCuO4+d from Hall and resistivity measurements | The doping and temperature dependence of the Hall coefficient, RH, and
ab-plane resistivity in the normal state down to 350mK is reported for oriented
films of the electron-doped high-Tc superconductor Pr2-xCexCuO4+d. The doping
dependence of b (r=r0+AT^b) and R_sub_H (at 350 mK) suggest a quantum phase
transition at a... | 0310475v2 |
2004-01-15 | Plasmon assisted transport through disordered array of quantum wires | Phononless plasmon assisted thermally activated transport through a long
disordered array of finite length quantum wires is investigated analytically.
Generically strong electron plasmon interaction in quantum wires results in a
qualitative change of the temperature dependence of thermally activated
resistance in compa... | 0401274v2 |
2004-01-26 | Vanishing Hall Resistance at High Magnetic Field in a Double Layer Two-Dimensional Electron System | At total Landau level filling factor $\nu_{tot}=1$ a double layer
two-dimensional electron system with small interlayer separation supports a
collective state possessing spontaneous interlayer phase coherence. This state
exhibits the quantized Hall effect when equal electrical currents flow in
parallel through the two ... | 0401521v1 |
2004-07-06 | Spin characterization and control over the regime of radiation-induced zero-resistance states | Over the regime of the radiation-induced zero-resistance states and
associated oscillatory magnetoresistance, we propose a low magnetic field
analog of quantum-Hall-limit techniques for the electrical detection of
electron spin- and nuclear magnetic- resonance, dynamical nuclear polarization
via electron spin resonance... | 0407143v1 |
2004-08-03 | Electrical resistivity and tunneling anomalies in CeCuAs2 | The compound CeCuAs2 is found to exhibit negative temperature (T) coefficient
of electrical resistivity (rho) under ambient pressure conditions in the entire
T-range of investigation (45 mK to 300 K), even in the presence of high
magnetic fields. Preliminary tunneling spectroscopic measurements indicate the
existence o... | 0408060v1 |
2005-01-05 | Radiation-induced zero-resistance states with resolved Landau levels | The microwave-photoexcited high mobility GaAs/AlGaAs two-dimensional electron
system exhibits an oscillatory-magnetoresistance with vanishing resistance in
the vicinity of magnetic fields $B = [4/(4j+1)] B_{f}$, where $B_{f} =
2\pi\textit{f}m^{*}/e$, m$^{*}$ is an the effective mass, e is the charge,
\textit{f} is the ... | 0501091v1 |
2005-01-21 | Metallic behavior in Si/SiGe 2D electron systems | We calculate the temperature, density, and parallel magnetic field dependence
of low temperature electronic resistivity in 2D high-mobility Si/SiGe quantum
structures, assuming the conductivity limiting mechanism to be carrier
scattering by screened random charged Coulombic impurity centers. We obtain
comprehensive agr... | 0501531v1 |
2005-05-10 | Variable resistance at the boundary between semimetal and excitonic insulator | We solve the two-band model for the transport across a junction between a
semimetal and an excitonic insulator. We analyze the current in terms of two
competing terms associated with neutral excitons and charged carriers,
respectively. We find a high value for the interface resistance, extremely
sensitive to the juncti... | 0505247v1 |
2006-02-18 | Anomalous Flux Pinning in ?-Pyrochlore Oxide Superconductor KOs2O6 | The superconducting transition of the ?-pyrochlore oxide KOs2O6 with Tc =
9.60 K is studied by resistivity measurements under various magnetic fields
using a high-quality single crystal. The reentrant behavior of
superconductivity is observed near Tc in low magnetic fields below 2 T. The
recovered resistance probably d... | 0602433v1 |
2006-03-30 | Joule heating induced negative differential resistance in free standing metallic carbon nanotubes | The features of the $IV$ characteristics of metallic carbon nanotubes (m-NTs)
in different experimental setups are studied using semi-classical Boltzmann
transport equation together with the heat dissipation equation to account for
significant thermal effects at high electric bias. Our model predicts that the
shape of ... | 0603831v1 |
2007-03-27 | Resistively shunted Josephson junctions: QFT predictions versus MC results | During the last fourteen years several exact results were obtained for the
so-called boundary sine-Gordon model. In the case of a conformal bulk this 2D
boundary quantum field theory describes the universal scaling behavior of the
Caldeira-Leggett model of resistively shunted Josephson junctions. In this
work, we use a... | 0703712v2 |
1994-02-14 | Fractal Dimension of Gauge-fixing Defects | The fractal dimension $D_f$ of sites resisting Landau or maximal Abelian(MA)
gauge fixing in lattice $SU(3)$ gluodynamics is defined and computed. In Landau
gauge such sites clump into $D_f\sim 1$ clusters in the confining phase. In the
finite temperature phase their dimensionality drops to $D_f < 1$, that is,
clusteri... | 9402009v2 |
2002-07-09 | Body Motion in a Resistive Medium at Temperature T | We consider a macroscopic body propagating in a one-dimensional resistive
medium, consisting of an ideal gas at temperature $T$. For a whole family of
collisions with varying degree of inelasticity, we find an exact expression for
the effective force on the moving body as a function of the body's speed and
the value of... | 0207037v1 |
2002-11-29 | Resistive plate chambers for time-of-flight measurements | The applications of Resistive Plate Chambers (RPCs) have recently been
extended by the development of counters with time resolution below 100 ps sigma
for minimum ionising particles. Applications to HEP experiments have already
taken place and many further applications are under study. In this work we
address the opera... | 0211120v1 |
2007-05-04 | Simultaneous recording of two- and four-probe resistive transitions in doped laser-processed Sr-Ru-O | To confirm previously reported evidence of high-temperature superconductivity
in laser processed Sr-Ru-O, we performed simultaneous two-probe and four-probe
resistive measurements using bar-geometry samples. A superconducting-type
transition with an onset at about 250K was recorded in one of the samples,
consistent wit... | 0705.0641v1 |
2007-07-18 | Synchnonization, zero-resistance states and rotating Wigner crystal | We show that rotational angles of electrons moving in two dimensions (2D) in
a perpendicular magnetic field can be synchronized by an external microwave
field which frequency is close to the Larmor frequency. The synchronization
eliminates collisions between electrons and thus creates a regime with zero
diffusion corre... | 0707.2694v1 |
2007-11-06 | Plasmon phenomena as origin of DC-current induced resistivity oscillations in two-dimensional electron systems | We analyze theoretically the oscillations that the magnetoresistivity of
two-dimensional electron systems present when a high intensity direct current
is applied. In the model presented here we suggest that a plasma wave is
excited in the system producing an oscillating motion of the whole
two-dimensional electron gas ... | 0711.0927v1 |
2008-06-17 | Electrical Resistivity and Specific Heat of EuFe2As2 Single Crystals: Magnetic homologue of SrFe2As2 | We have grown single crystals of EuFe2As2 and investigated its electrical
transport and thermodynamic properties. Electrical resistivity and specific
heat measurements clearly establish the intrinsic nature of magnetic phase
transitions at 20 K and 195 K. While the high temperature phase transition is
associated with t... | 0806.2876v2 |
2008-08-05 | Suppression of Magnetic Order by Pressure in BaFe2As2 | We performed the dc resistivity and the ZF 75As-NMR measurement of BaFe2As2
under high pressure. The T-P phase diagram of BaFe2As2 determined from
resistivity anomalies and the ZF 75As-NMR clearly revealed that the SDW anomaly
is quite robust against P. | 0808.0718v1 |
2008-10-14 | Magnetic Field Induced Instabilities in Localised Two-Dimensional Electron Systems | We report density dependent instabilities in the localised regime of
mesoscopic two-dimensional electron systems (2DES) with intermediate strength
of background disorder. They are manifested by strong resistance oscillations
induced by high perpendicular magnetic fields B_{\perp}. While the amplitude of
the oscillation... | 0810.2418v1 |
2009-08-02 | Resistivity noise in crystalline magnetic nanowires and its implications to domain formation and kinetics | We have investigated the time-dependent fluctuations in electrical
resistance, or noise, in high quality crystalline magnetic nanowires within
nanoporous templates. The noise increases exponentially with increasing
temperature and magnetic field, and has been analyzed in terms of domain wall
depinning within the Neel-B... | 0908.0136v1 |
2010-07-07 | Selfoscillations of Suspended Carbon Nanotubes with a Deflection Sensitive Resistance under Voltage Bias | We theoretically investigate the electro-mechanics of a Suspended Carbon
Nanotube with a Deflection Sensitive Resistance subjected to a homogeneous
Magnetic Field and a constant Voltage Bias. We show that, (with the exception
of a singular case), for a sufficiently high magnetic field the
time-independent state of char... | 1007.1139v1 |
2010-07-28 | Inelastic contribution of the resistivity in the hidden order in URu2Si2 | In the hidden order of URu2Si2 the resistivity at very low temperature shows
no T^2 behavior above the transition to superconductivity. However, when
entering the antiferromagnetic phase, the Fermi liquid behavior is recovered.
We discuss the change of the inelastic term when entering the AF phase with
pressure conside... | 1007.4905v1 |
2010-08-23 | Field induced changes across magnetic compensation in Pr(1-x)Gd(x)Al(2) alloys | The magnetic compensation phenomenon has been explored in the
Pr(1-x)Gd(x)Al(2) series. The contributions from Pr and Gd moments compensate
each other at a specific temperature in the ordered state (below (T(c)). At
high fields, the magnetic reorientation (with respect to the external field
direction) of the Pr and Gd ... | 1008.3782v1 |
2011-01-14 | Hall field-induced resistance oscillations in tilted magnetic fields | We have studied the effect of an in-plane magnetic field on Hall
field-induced resistance oscillations in high mobility two-dimensional electron
systems. We have found that the oscillation frequency depends only on the
perpendicular component of the magnetic field but the oscillation amplitude
decays exponentially with... | 1101.2871v2 |
2011-02-24 | Positive speed for high-degree automaton groups | Mother groups are the basic building blocks for polynomial automaton groups.
We show that, in contrast with mother groups of degree 0 or 1, any bounded,
symmetric, generating random walk on the mother groups of degree at least 3 has
positive speed. The proof is based on an analysis of resistance in fractal
mother graph... | 1102.4979v1 |
2011-03-09 | An efficient multi-use multi-secret sharing scheme based on hash function | In this paper, a renewable, multi-use, multi-secret sharing scheme for
general access structure based on one-way collision resistant hash function is
presented in which each participant has to carry only one share. By applying
collision-resistant one-way hash function, the proposed scheme is secure
against conspiracy a... | 1103.1730v1 |
2011-05-28 | Thermo-Resistive Instability in Magnetar Crusts | We investigate a thermo-resistive instability in the outer crusts of
magnetars wherein a perturbation in temperature increases ohmic heating. We
show that magnetars of characteristic age {\tau}_{age} ~ 10^4 yr are unstable
over timescales as short as days if strong current sheets are present in the
outer crust. This in... | 1105.5712v1 |
2011-10-10 | Non linear transport in drift-diffusion equations under magnetic field | We analyze numerically and analytically the non linear transport properties
of a drift-diffusion equation in presence of a magnetic field and of a disorder
potential. For a wide range of parameters this model exhibits a plateau where
the drift velocity is almost independent on the applied electric field. This
behavior ... | 1110.2033v1 |
2012-08-09 | Strange metals at finite 't Hooft coupling | In this paper, we consider the AdS-Schwarzshild black hole in light-cone
coordinates which exhibits non-relativistic z=2 Schrodinger symmetry. Then, we
use the $AdS/CFT$ correspondence to investigate the effect of finite-coupling
corrections to two important properties of the strange metals which are the
Ohmic resistiv... | 1208.1855v1 |
2012-11-15 | Microwave-induced resistance oscillations in tilted magnetic fields | We have studied the effect of an in-plane magnetic field on microwave-induced
resistance oscillations in a high mobility two-dimensional electron system. We
have found that the oscillation amplitude decays exponentially with an in-plane
component of the magnetic field $B_\parallel$. While these findings cannot be
accou... | 1211.3753v1 |
2013-07-25 | Negative differential resistance with graphene channels, interfacing distributed quantum dots in Field-Effect Transistors | Field effect transistors with channels made of graphene layer(s) were
explored. The graphene layer(s) contacted a distributed array of well-separated
semiconductor quantum dots (QDs). The dots were embedded in nano-structured
hole-array; each filled hole was occupied by one dot. Differential optical and
electrical cond... | 1307.6790v1 |
2013-09-04 | Exploiting negative differential resistance in monolayer graphene FETs for high voltage gains | Through self-consistent quantum transport simulations, we evaluate the RF
performance of monolayer graphene FETs in the bias region of negative output
differential resistance. We show that, compared to the region of
quasi-saturation, a voltage gain larger than 10 can be obtained, at the cost of
a decrease in the maximu... | 1309.1105v2 |
2013-11-01 | Fermi liquid breakdown and evidence for superconductivity in YFe$_2$Ge$_2$ | In the d-electron system YFe$_2$Ge$_2$, an unusually high and temperature
dependent Sommerfeld ratio of the specific heat capacity $C/T \sim
100~\mathrm{mJ/(molK^2)}$ and an anomalous power law temperature dependence of
the electrical resistivity $\rho \simeq \rho_0 + AT^{3/2}$ signal Fermi liquid
breakdown, probably c... | 1311.0247v2 |
2014-04-28 | Resistive Plate Chambers for Imaging Calorimetry - the DHCAL | The DHCAL, the Digital Hadron Calorimeter, is a prototype calorimeter based
on Resistive Plate Chambers (RPCs). The design emphasizes the imaging
capabilities of the detector in an effort to optimize the calorimeter for the
application of Particle Flow Algorithms (PFAs) to the reconstruction of
hadronic jet energies in... | 1404.7046v2 |
2014-05-07 | Thermal effects and switching kinetics in silver/manganite memristive systems: Probing oxygen vacancies diffusion | We investigate the switching kinetics of oxygen vacancies (Ov) diffusion in
LPCMO-Ag memristive interfaces by performing experiments on the temperature
dependence of the high resistance (HR) state under thermal cycling.
Experimental results are well reproduced by numerical simulations based on
thermally activated Ov di... | 1405.1585v1 |
2014-06-26 | Signal Characteristics of a Resistive-Strip Micromegas Detector with an Integrated Two-Dimensional Readout | In recent years, micropattern gaseous detectors, which comprise a
two-dimensional readout structure within one PCB layer, received significant
attention in the development of precision and cost-effective tracking detectors
in medium and high energy physics experiments. In this article, we present for
the first time a s... | 1406.6871v1 |
2016-06-25 | Linear and quadratic in temperature resistivity from holography | We present a new black hole solution in the asymptotic Lifshitz spacetime
with a hyperscaling violating factor. A novel computational method is
introduced to compute the DC thermoelectric conductivities analytically. We
find that both the linear-T and quadratic-T contributions to the resistivity
can be realized, indica... | 1606.07905v3 |
2017-02-18 | Delta-doped Beta- Gallium Oxide Field Effect Transistor | We report silicon delta doping in Gallium Oxide (\b{eta}-Ga2O3) grown by
plasma assisted molecular beam epitaxy using a shutter pulsing technique. We
describe growth procedures that can be used to realize high Si incorporation in
an oxidizing oxygen plasma environment. Delta doping was used to realize thin
(12 nm) low-... | 1702.06584v1 |
2017-11-17 | An HLLC Riemann Solver for Resistive Relativistic Magnetohydrodynamics | We present a new approximate Riemann solver for the augmented system of
equations of resistive relativistic magnetohydrodynamics (RRMHD) that belongs
to the family of Harten-Lax-van Leer contact wave (HLLC) solvers. In HLLC
solvers, the solution is approximated by two constant states flanked by two
shocks separated by ... | 1711.06691v2 |
2018-02-01 | MHD simulations of resistive viscous accretion disk around millisecond pulsar | We perform MHD simulations of a thin resistive and viscous accretion disk
around a neutron star with the surface dipolar magnetic field of 10$^8$ Gauss.
The system evolution is followed during the interval of 500 millisecond pulsar
rotations. Matter is accreted through a stable accretion column from the disk
onto the s... | 1802.00261v1 |
2014-08-01 | Nonmetallic Low-Temperature Normal State of K0.70Fe1.46Se1.85Te0.15 | The normal-state in-plane resistivity below the zero-field superconducting
transition temperature $T_c$ and the upper critical field Hc2 were measured by
suppressing superconductivity in pulsed magnetic fields for
K0.70Fe1.46Se1.85Te0.15. The normal-state resistivity $\rho_{ab}$ is found to
increase logarithmically wit... | 1408.0271v1 |
2020-02-22 | Accelerating longitudinal expansion of resistive relativistic-magneto-hydrodynamics in heavy ion collisions | We study the evolution of the longitudinal expansion of an ideal fluid with
finite electrical conductivity, which is subject to the EM fields. In the
framework of resistive relativistic-magneto-hydrodynamic, we find an exact
analytical solution for the EM fields and for the acceleration of the fluid. | 2002.09752v1 |
2012-01-03 | Sub-Rayleigh lithography using high flux loss-resistant entangled states of light | Quantum lithography achieves phase super-resolution using fragile,
experimentally challenging entangled states of light. We propose a scalable
scheme for creating features narrower than classically achievable, with reduced
use of quantum resources and consequently enhanced resistance to loss. The
scheme is an implement... | 1201.0637v1 |
2017-08-02 | Graphene membrane as a pressure gauge | Straining graphene results in the appearance of a pseudo-magnetic field which
alters its local electronic properties. Applying a pressure difference between
the two sides of the membrane causes it to bend/bulge resulting in a resistance
change. We find that the resistance changes linearly with pressure for bubbles
of s... | 1708.00678v1 |
2019-12-18 | Large responsivity of graphene radiation detectors with thermoelectric readout | Simple estimations show that the thermoelectric readout in graphene radiation
detectors can be extremely effective even for graphene with modest
charge-carrier mobility ~1000 cm^2/(Vs). The detector responsivity depends
mostly on the residual charge-carrier density and split-gate spacing and can
reach competitive value... | 1912.08489v1 |
2012-03-01 | Magnetic and transport properties of iron-platinum arsenide Ca10(Pt4-δAs8)(Fe2-xPtxAs2)5 single crystal | We report superconducting properties of single crystalline
Ca10(Pt4-{\delta}As8)(Fe2-xPtxAs2)5 by X-ray diffraction, magnetization,
resistivity, and magneto-optical imaging measurements. The magnetization
measurements reveal fish-tail hysteresis loop and relatively high critical
current density Jc ~ 0.8\times105 A/cm2 ... | 1203.0099v1 |
2012-03-22 | Tungsten silicide films for microwave kinetic inductance detectors | Microwave Kinetic Inductance Detectors (MKIDs) provide highly multiplexed
arrays of detectors that can be configured to operate from the sub-millimeter
to the X-ray regime. We have examined two tungsten silicide alloys (W5Si3 and
WSi2), which are dense alloys that provide a critical temperature tunable with
composition... | 1203.5064v2 |
2016-09-10 | Angular resolution of stacked resistive plate chambers | We present here detailed derivations of mathematical expressions for the
accuracy in the arrival direction of particles estimated using a set of stacked
resistive plate chambers (RPCs). The expressions are validated against
experimental results using data collected from the prototype detectors (without
magnet) of the u... | 1609.03071v2 |
2016-09-19 | Scaling limits of stochastic processes associated with resistance forms | We establish that if a sequence of spaces equipped with resistance metrics
and measures converge with respect to the Gromov-Hausdorff-vague topology, and
a certain non-explosion condition is satisfied, then the associated stochastic
processes also converge. This result generalises previous work on trees,
fractals, and ... | 1609.05666v1 |
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