publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
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2018-07-18 | 2D Tunnel Field Effect Transistors (FETs) with a Stable Charge-Transfer-Type p$^+$-WSe$_2$ Source | Two-dimensional (2D) materials are highly promising for tunnel field effect
transistors (TFETs) with low subthreshold swing and high drive current because
the shorter tunnel distance and strong gate controllability can be expected
from the van der Waals gap distance and the atomically sharp heterointerface
formed indep... | 1807.06762v1 |
2019-10-14 | Plasmonic Titanium Nitride via Atomic Layer Deposition: A Low-Temperature Route | To integrate plasmonic devices into industry, it is essential to develop
scalable and CMOS compatible plasmonic materials. In this work, we report high
plasmonic quality titanium nitride (TiN) on c-plane sapphire by plasma enhanced
atomic layer deposition (PE-ALD). TiN with low losses and high metallicity was
achieved ... | 2001.05063v1 |
2021-06-26 | High Infrared Reflectance Modulation in VO2 Films Synthesized on Glass and ITO coated Glass substrates using Atmospheric Oxidation of Vanadium | Vanadium Dioxide (VO2) is a strongly correlated material, which exhibits
insulator to metal transition at ~68 C along with large resistivity and
infrared optical reflectance modulation. In this work, we use atmospheric
pressure thermal oxidation of Vanadium to synthesize VO2 films on glass and ITO
coated glass substrat... | 2106.14006v1 |
2022-04-11 | Emergent superconductivity in van der Waals Kagome material Pd3P2S8 under high pressure | Kagome lattice systems have been proposed to host rich physics, which provide
an excellent platform to explore unusual quantum states. Here, we report on the
discovery of superconductivity in van der Waals material Pd3P2S8 under
pressure. The superconductivity is observed in Pd3P2S8 for those pressures
where the temper... | 2204.05179v1 |
2001-07-21 | Distinct origins of magnetic -field -induced resistivity irreversibility in two manganites with similar ground states : Pr$_{0.5}$Sr$_{0.41}$Ca$_{0.09}$MnO$_{3}$ and La$_{0.5}$Ca$_{0.5}$MnO$_{3}$ | Our investigation of the magnetotransport in two charge ordered manganites
with similar magnetic ground states reveals that the origin of
magnetoresistance can not be concluded from the isofield resistivity, $\rho
$(T, constant H), measurements alone. Both
Pr$_{0.5}$Sr$_{0.41}$Ca$_{0.09}$MnO$_{3}$ (PrSrCa) and
La$_{0.5... | 0107448v1 |
2006-09-15 | Magneto Transport of high TCR (temperature coefficient of resistance) La2/3Ca1/3MnO3: Ag Polycrystalline Composites | We report the synthesis, (micro)structural, magneto-transport and
magnetization of polycrystalline La2/3Ca1/3MnO3:Agx composites with x = 0.0,
0.1, 0.2, 0.3 and 0.4. The temperature coefficient of resistance (TCR) near
ferromagnetic (FM) transition is increased significantly with addition of Ag.
The FM transition tempe... | 0609364v1 |
2007-09-05 | Microwave surface resistance of pristine and neutron-irradiated MgB2 samples in magnetic field | We report on the microwave surface resistance of two polycrystalline Mg11B2
samples; one consists of pristine material, the other has been irradiated at
very high neutron fluence. It has already been reported that in the strongly
irradiated sample the two gaps merge into a single value. The mw surface
resistance has be... | 0709.0618v2 |
2008-02-12 | Two-Fluid Behaviour at the Origin of the Resistivity Peak in Doped Manganites | We report a series of magnetic and transport measurements on high-quality
single crystal samples of colossal magnetoresistive manganites, La_{0.7}
Ca_{0.3} Mn O_3 and Pr_{0.7} Sr_{0.3} Mn O_3. 1 % Fe doping allows a Moessbauer
spectroscopy study, which shows (i) unusual line broadening within the
ferromagnetic phase an... | 0802.1664v3 |
2008-06-15 | Anisotropy in the electrical resistivity and susceptibility of superconducting BaFe$_{2}$As$_{2}$ single crystals | Sizable single crystals of $BaFe_2As_2$ have been grown with self-flux
method. The crystals are plate-like with c-axis perpendicular to the plane. The
size can be as large as 3 x 5 x 0.2 $mm^3$. The resistivity anisotropy
($\rho_c/\rho_{ab}$) is as large as about 150, and independent of temperature.
The transport in ab... | 0806.2452v2 |
2008-10-01 | Qualitative explanation of the temperature behaviors of the transport properties and magnetic susceptibility of high-temperature superconductors in the normal state | A model based on the alternating structure of the imbedded conduction layers
(the Cu-O2 planes) with the charge-transfer-insulator (CTI) layers is proposed.
There are three kinds of carriers, each with a different behavior:
conduction-like holes in the Cu-O2 layers and electrons and normal holes in the
CTI matrix betwe... | 0810.0169v2 |
2011-01-29 | Crystal structure, physical properties and superconductivity in $A_{x}$Fe$_2$Se$_2$ single crystals | We studied the correlation among structure and transport properties and
superconductivity in the different $A_x$Fe$_2$Se$_2$ single crystals ($A$ = K,
Rb, and Cs). Two sets of (00$l$) reflections are observed in the X-ray single
crystal diffraction patterns, and arise from the intrinsic inhomogeneous
distribution of th... | 1101.5670v1 |
2011-03-04 | Measurements of thermodynamic and transport properties of EuC$_2$: a low-temperature analogue of EuO | EuC$_2$ is a ferromagnet with a Curie-temperature of $T_C \simeq 15\,$K. It
is semiconducting with the particularity that the resistivity drops by about 5
orders of magnitude on cooling through $T_C$, which is therefore called a
metal-insulator transition. In this paper we study the magnetization, specific
heat, therma... | 1103.0980v1 |
2012-07-13 | Synthesis and acid resistance of maya blue pigment | Maya blue is an organo-clay artificial pigment composed of indigo and
palygorskite. It was invented and frequently used in Mesoamerica in ancient
times (eighth to 16th centuries). We analyse in this paper one of the
characteristics of Maya blue that has attracted the attention of scientists
since its rediscovery in 193... | 1207.3229v1 |
2013-04-07 | Quasi-classical physics and T-linear resistivity in both strongly correlated and ordinary metals | We show that near a quantum critical point generating quantum criticality of
strongly correlated metals where the density of electron states diverges, the
quasi-classical physics remains applicable to the description of the
resistivity \rho of strongly correlated metals due to the presence of a
transverse zero-sound co... | 1304.2068v4 |
2013-09-13 | 1/f noise in graphene | We present a novel and comprehensive model of 1/f noise in nanoscale graphene
devices that accounts for the unusual and so far unexplained experimental
characteristics. We find that the noise power spectral density versus carrier
concentration of single-layer sheet devices has a behavior characterized by a
shape going ... | 1309.3420v1 |
2014-09-19 | Absence of a quantum limit to charge diffusion in bad metals | Good metals are characterised by diffusive transport of coherent
quasi-particle states and the resistivity is much less than the
Mott-Ioffe-Regel (MIR) limit, $\frac{ha}{e^{2}}$, where $a$ is the lattice
constant. In bad metals, such as many strongly correlated electron materials,
the resistivity exceeds the Mott-Ioffe... | 1409.5662v2 |
2016-05-26 | Fast suppression of superconductivity with Fe site Ni substitution in Fe1-xNixSe0.5Te0.5 (x=0.0, 0.01, 0.03, 0.05, 0.07, 0.10 and 0.20) single crystals | We report the effect of Ni doping on superconductivity of FeSe0.5Te0.5. The
single crystal samples of series Fe1-xNixSe0.5Te0.5 (x=0.0, 0.01, 0.03, 0.05,
0.07, 0.10 and 0.20) are synthesized via vacuum shield solid state reaction
route and high temperature heating followed by slow cooling. All the crystals
of Fe1-xNixS... | 1605.08217v2 |
2016-06-23 | Resistive properties and phase diagram of the organic antiferromagnetic metal $κ$-(BETS)$_2$FeCl$_4$ | The low-temperature electronic state of the layered organic charge-transfer
salt $\kappa$-(BETS)$_2$FeCl$_4$ was probed by interlayer electrical resistance
measurements under magnetic field. Both above and below
$T_{\mathrm{N}}=0.47\,$K, the temperature of antiferromagnetic ordering of
$3d$-electron spins of Fe$^{3+}$ ... | 1606.07331v3 |
2016-10-28 | Asymmetric pentagonal metal meshes for flexible transparent electrodes and heaters | Metal meshes have emerged as an important class of flexible transparent
electrodes. We report on the characteristics of a new class of asymmetric
meshes, tiled using a recently-discovered family of pentagons. Micron-scale
meshes were fabricated on flexible polyethylene terephthalate substrates via
optical lithography, ... | 1611.02744v1 |
2018-11-06 | Metallic surface states in a correlated d-electron topological Kondo insulator candidate FeSb2 | The resistance of a conventional insulator diverges as temperature approaches
zero. The peculiar low temperature resistivity saturation in the 4f Kondo
insulator (KI) SmB6 has spurred proposals of a correlation-driven topological
Kondo insulator (TKI) with exotic ground states. However, the scarcity of model
TKI materi... | 1811.02183v3 |
2016-03-09 | Quantization of Hall Resistance at the Metallic Interface between an Oxide Insulator and SrTiO$_{3}$ | The two-dimensional metal forming at the interface between an oxide insulator
and SrTiO3 provides new opportunities for oxide electronics. However, the
quantum Hall effect, one of the most fascinating effects of electrons confined
in two dimensions, remains underexplored at these complex oxide
heterointerfaces. Here, w... | 1603.02850v2 |
2017-07-21 | Electrical characterization of structured platinum diselenide devices | Platinum diselenide (PtSe2) is an exciting new member of the two-dimensional
(2D) transition metal dichalcogenide (TMD) family. it has a semimetal to
semiconductor transition when approaching monolayer thickness and has already
shown significant potential for use in device applications. Notably, PtSe2 can
be grown at l... | 1707.06824v1 |
2017-08-06 | Electric-field-induced extremely large change in resistance in graphene ferromagnets | A colossal magnetoresistance ($\sim 100\times10^3\%$) and an extremely large
magnetoresistance ($\sim 1\times10^6\%$) have been previously explored in
manganite perovskites and Dirac materials, respectively. However, the
requirement of an extremely strong magnetic field (and an extremely low
temperature) makes them not... | 1708.01858v2 |
2018-08-30 | Metallic glasses for spintronics: anomalous temperature dependence and giant enhancement of inverse spin Hall effect | Spin-charge conversion via inverse spin Hall effect (ISHE) is essential for
enabling various applications of spintronics. The spin Hall response usually
follows a universal scaling relation with longitudinal electric resistivity and
has mild temperature dependence because elementary excitations play only a
minor role i... | 1808.10371v1 |
2018-07-06 | MRPC3b mass production for CBM-TOF and eTOF at STAR | The Compressed Baryonic Matter (CBM) spectrometer aims to study strongly
interacting matter under extreme conditions. The key element providing hadron
identification at incident energies between 2 and 11 AGeV in heavy-ion
collisions at the SIS100 accelerator is a Time-of-Flight (TOF) wall covering
the polar angular ran... | 1807.02452v1 |
2019-01-03 | Study of electrostatic septum design and its high-voltage discharge protection | In this paper, we introduce the design of electrostatic septum (ESS) for the
accelerator of Shanghai Advanced Proton Therapy (SAPT), and discuss its
mechanical structure and the material selection of the electrode. The beam loss
on the septum is studied, and the calculation results are given by the particle
simulation ... | 1901.00646v3 |
2020-05-17 | Remarkable low-energy properties of the pseudogapped semimetal Be$_5$Pt | We report measurements and calculations on the properties of the
intermetallic compound Be$_5$Pt. High-quality polycrystalline samples show a
nearly constant temperature dependence of the electrical resistivity over a
wide temperature range. On the other hand, relativistic electronic structure
calculations indicate the... | 2005.08327v2 |
2021-04-19 | Various magnetism of the compressed antiferromagnetic topological insulator EuSn2As2 | We report a comprehensive high-pressure study on the antiferromagnetic
topological insulator EuSn2As2 up to 21.1 GPa through measurements of
synchrotron x-ray diffraction, electrical resistance, magnetic resistance, and
Hall transports combined with first-principles calculations. No evident trace
of a structural phase ... | 2104.09412v1 |
2021-04-20 | Properties of MoO2 and MoO3 Films Prepared from the Chemically Driven Isothermal Close Space Vapor Transport Technique | Chemically _ driven isothermal close space vapour transport was used to
prepare pure MoO2 films which were eventually converted to MoO3 by annealing in
air. According to temperature_dependent Raman measurements, the MoO2/MoO3 phase
transformation was found to occur in the 225 _ 350 oC range; no other phases
were detect... | 2104.10245v1 |
2021-08-21 | Evolution of superconductivity and charge order in pressurized RbV$_3$Sb$_5$ | The kagome metals $A$V$_3$Sb$_5$ ($A=$ K, Rb, Cs) under ambient pressure
exhibit an unusual charge order, from which superconductivity emerges. In this
work, by applying hydrostatic pressure using a liquid pressure medium and
carrying out electrical resistance measurements for RbV$_3$Sb$_5$, we find the
charge order be... | 2108.09434v2 |
2021-08-22 | Explainable Machine Learning using Real, Synthetic and Augmented Fire Tests to Predict Fire Resistance and Spalling of RC Columns | This paper presents the development of systematic machine learning (ML)
approach to enable explainable and rapid assessment of fire resistance and
fire-induced spalling of reinforced concrete (RC) columns. The developed
approach comprises of an ensemble of three novel ML algorithms namely; random
forest (RF), extreme g... | 2108.09862v1 |
2021-11-27 | Antiferromagnetism and large magnetoresistance in GdBi single crystal | Single crystal of the binary equi-atomic compound GdBi crystallizing in the
rock salt type cubic crystal structure with the space group $Fm\bar{3}m$ has
been grown by flux method. The electrical and magnetic measurements have been
performed on well oriented single crystals. The antiferromagnetic ordering of
the Gd mome... | 2111.13836v1 |
2022-06-13 | Ultra-High-Precision Detection of Single Microwave Photons based on a Hybrid System between Majorana Zero Mode and a Quantum Dot | The ability to detect single photons has become increasingly essential due to
the rise of photon-based quantum computing. In this theoretical work, we
propose a system consisting of a quantum dot (QD) side-coupled to a
superconducting nanowire. The coupling opens a gap in both the QD mode and the
Majorana zero mode (MZ... | 2206.06521v4 |
2022-11-02 | Beta-Ga2O3 MOSFETs with near 50 GHz fMAX and 5.4 MV/cm average breakdown field | This letter reports high-performance $\mathrm{\beta} Ga2O3 thin channel
MOSFETs with T-gate and degenerately doped source/drain contacts regrown by
MOCVD. Gate length scaling (LG= 160-200 nm) leads to a peak drain current
(ID,MAX) of 285 mA/mm and peak trans-conductance (gm) of 52 mS/mm at 10 V drain
bias with 23.5 Ohm... | 2211.01088v1 |
2023-04-06 | All-electrical operation of a Curie-switch at room temperature | We present all-electrical operation of a Fe$_x$Cr$_{1-x}$-based Curie switch
at room temperature. More specifically, we study the current-induced
thermally-driven transition from ferromagnetic to antiferromagnetic
Ruderman-Kittel-Kasuya-Yosida (RKKY) indirect coupling in a
Fe/Cr/Fe$_{17.5}$Cr$_{82.5}$/Cr/Fe multilayer.... | 2304.03040v2 |
2023-05-14 | Response of the Verwey transition in magnetite to a controlled point-like disorder induced by 2.5 MeV electron irradiation | A controlled point-like disorder induced by low temperature 2.5 MeV electron
irradiation was used to probe the nature of the Verwey transition in magnetite,
$\text{Fe}_{3}\text{O}_{4}$. Two large single crystals, one with optimal
transition temperature, $T_{V}\approx121$ K, and another with $T_{V}\approx109$
K, as well... | 2305.08276v1 |
2023-09-12 | Numerical study on the effects of fluid properties in electrohydrodynamic pulsating jet under constant voltage | Pulsating jet is one of the common working modes in electrohydrodynamic
printing (EHDP) that process is highly affected by operating parameters and
material properties. In this paper, the processes of pulsating jet for liquids
with different physical properties were investigated using numerical
simulation. An electrohy... | 2309.06277v1 |
2023-10-13 | Controlling Umklapp scattering in bilayer graphene moir'e superlattice | In this Letter, we present experimental findings on electron-electron
scattering in a two-dimensional moir'e heterostructure with tunable Fermi wave
vector, reciprocal lattice vector, and band gap. We achieve this in
high-mobility aligned heterostructures of bilayer graphene (BLG) and hBN.
Around half-filling, the prim... | 2310.08906v2 |
2023-11-20 | Absence of metallicity and bias-dependent resistivity in low-carrier-density EuCd2As2 | EuCd2As2 was theoretically predicted to be a minimal model of Weyl semimetals
with a single pair of Weyl points in the ferromagnet state. However, the
heavily p-doped EuCd2As2 crystals in previous experiments prevent direct
identification of the semimetal hypothesis. Here we present a comprehensive
magneto-transport st... | 2311.11515v1 |
2024-01-15 | Alternating Bias Assisted Annealing of Amorphous Oxide Tunnel Junctions | We demonstrate a transformational technique for controllably tuning the
electrical properties of fabricated thermally oxidized amorphous aluminum-oxide
tunnel junctions. Using conventional test equipment to apply an alternating
bias to a heated tunnel barrier, giant increases in the room temperature
resistance, greater... | 2401.07415v2 |
2024-01-22 | Self-pulsing of Dielectric Barrier Discharges at Low Driving Frequencies | This paper investigates the self-pulsing of Dielectric Barrier Discharges
(DBDs) at low driving frequencies. In particular, (a) the dependence of current
on the product pd of gas pressure p and the gas gap length d, (b) the effects
of lossy dielectrics (in resistive discharges) and large dielectric
permittivity (in fer... | 2401.12410v3 |
2015-06-26 | Conventional superconductivity at 203 K at high pressures | A superconductor is a material that can conduct electricity with no
resistance below its critical temperature (Tc). The highest Tc that has been
achieved in cuprates1 is 133 K at ambient pressure2 and 164 K at high
pressures3. As the nature of superconductivity in these materials has still not
been explained, the prosp... | 1506.08190v1 |
2014-05-01 | Effect of Electrical Properties on Gd modified BiFeO3-PbZrO3 | The 0.5(BiGdxFe1-xO3)-0.5(PbZrO3) composite was synthesized using a high
temperature solid-state reaction technique. Preliminary X-ray structural
analysis confirms the formation of the composite. The dielectric constant and
loss tangent have been studied. The hysteresis loop suggest that the material
is lossy. The impe... | 1405.0104v1 |
2019-02-13 | Cu-substituted Fe2P: An emerging candidates for magnetic RAM application | We propose that Cu-substituted Fe$_2$P, (Fe$_{1-x}$Cu$_x$)$_2$P ($x\sim
0.16$), to be an outstanding contender for the STT-MRAM application. Using
first principles based calculations in the framework of density functional
theory and through Monte Carlo simulations, we demonstrate that this material
can be used as ferro... | 1902.04876v1 |
2012-06-01 | Novel highly conductive and transparent graphene based conductors | Future wearable electronics, displays and photovoltaic devices rely on highly
conductive, transparent and yet mechanically flexible materials. Nowadays
indium tin oxide (ITO) is the most wide spread transparent conductor in
optoelectronic applications, however the mechanical rigidity of this material
limits its use for... | 1206.0001v1 |
2020-11-16 | First-principles study of the electronic, magnetic, and crystal structure of perovskite molybdates | The molybdate oxides SrMoO$_3$, PbMoO$_3$, and LaMoO$_3$ are a class of
metallic perovskites that exhibit interesting properties including high
mobility, and unusual resistivity behavior. We use first-principles methods
based on density functional theory to explore the electronic, crystal, and
magnetic structure of the... | 2011.08323v2 |
2020-11-21 | Flash microwave pressing of zirconia | Microwave Pressing is a promising way to reduce microwave sintering
temperatures and stabilize microwave powder materials processing. A
multi-physics simulation was conducted of the regulated pressure-assisted
microwave cavity. This simulation took into consideration resonance phenomena
and the nonlinear temperature-de... | 2011.14009v1 |
2021-03-28 | Acoustic-pressure-assisted engineering of aluminium foams | Foaming metals modulates their physical properties, enabling attractive
applications where lightweight, low thermal conductivity or acoustic isolation
are desirable. Adjusting the size of the bubbles in the foams is particularly
relevant for targeted applications. Here we provide a method with a detailed
theoretical un... | 2103.15225v1 |
2023-04-21 | Probabilistic selection and design of concrete using machine learning | Development of robust concrete mixes with a lower environmental impact is
challenging due to natural variability in constituent materials and a multitude
of possible combinations of mix proportions. Making reliable property
predictions with machine learning can facilitate performance-based
specification of concrete, re... | 2304.11226v1 |
2024-03-08 | Superconductivity of the New Medium-Entropy Alloy V4Ti2W with a Body-Centered Cubic Structure | Medium- and high-entropy alloy (MEA and HEA) superconductors have attracted
considerable interest since their discovery. This paper reports the
superconducting properties of ternary tungsten-containing MEA V4Ti2W for the
first time. V4Ti2W is a type II superconductor with a body-centered cubic (BCC)
structure. Experime... | 2403.05115v1 |
2024-03-28 | Challenges in extracting nonlinear current-induced phenomena in Ca2RuO4 | An appealing direction to change the properties of strongly correlated
materials is to induce nonequilibrium steady states by the application of a
direct current. While access to these novel states is of high scientific
interest, Joule heating due to current flow often constitutes a hurdle to
identify nonthermal effect... | 2403.19210v1 |
2000-01-07 | Near-Field Microwave Microscopy of Materials Properties | Near-field microwave microscopy has created the opportunity for a new class
of electrodynamics experiments of materials. Freed from the constraints of
traditional microwave optics, experiments can be carried out at high spatial
resolution over a broad frequency range. In addition, the measurements can be
done quantitat... | 0001075v2 |
2010-08-18 | A Stepped Oxide Hetero-Material Gate Trench Power MOSFET for Improved Performance | In this work, we propose a new Stepped Oxide Hetero-Material Trench (SOHMT)
power MOSFET with three sections in the trench gate (an N+ poly gate sandwiched
between two P+ poly gates) and having different gate oxide thicknesses
(increasing from source side to drain side). The different gate oxide thickness
serves the pu... | 1008.3022v1 |
2016-10-05 | A Novel Nanoporous Graphite Based on Graphynes: First Principles Structure and Carbon Dioxide Preferential Physisorption | Ubiquitous graphene is a stricly 2D material representing an ideal adsorbing
platform due to its large specific surface area as well as its mechanical
strength and resistance to both thermal and chemical stresses. However,
graphene as a bulk material has the tendency to form irreversible agglomerates
leading to 3D grap... | 1610.01313v1 |
2017-06-30 | Role of anisotropy in determining stability of electrodeposition at solid-solid interfaces | We investigate the stability of electrodeposition at solid-solid interfaces
for materials exhibiting an anisotropic mechanical response. The stability of
electrodeposition or resistance to the formation of dendrites is studied within
a linear stability analysis. The deformation and stress equations are solved
using the... | 1707.00064v3 |
2021-02-27 | van der Waals heterostructures based on atomically-thin superconductors | Van der Waals heterostructures (vdWHs) allow the assembly of high-crystalline
two-dimensional (2D) materials in order to explore dimensionality effects in
strongly correlated systems and the emergence of potential new physical
scenarios. In this work, it is illustrated the feasibility to integrate 2D
materials in-betwe... | 2103.00203v1 |
2022-11-18 | Pressure-Tuning Superconductivity in Noncentrosymmetric Topological Materials ZrRuAs | Recently, the hexagonal phase of ternary transition metal pnictides TT'X (T =
Zr, Hf; T'= Ru; X = P, As), which are well-known noncentrosymmetric
superconductors, were predicted to host nontrivial bulk topology. In this work,
we systematically investigate the electronic responses of ZrRuAs to external
pressure. At ambi... | 2211.10289v1 |
2023-03-28 | On optimization of heterogeneous materials for enhanced resistance to bulk fracture | We propose a novel approach to optimize the design of heterogeneous
materials, with the goal of enhancing their effective fracture toughness under
mode-I loading. The method employs a Gaussian processes-based Bayesian
optimization framework to determine the optimal shapes and locations of stiff
elliptical inclusions wi... | 2303.15801v1 |
2024-01-23 | Electronic Noise Spectroscopy of Quasi-2D van der Waals Antiferromagnetic Semiconductors | We investigated low-frequency current fluctuations, i.e. electronic noise, in
FePS3 van der Waals, layered antiferromagnetic semiconductor. The noise
measurements have been used as noise spectroscopy for advanced materials
characterization of the charge carrier dynamics affected by spin ordering and
trapping states. Ow... | 2401.12432v1 |
2015-04-24 | Graphene surpasses GaAs/AlGaAs for the application of the quantum Hall effect in metrology | The quantum Hall effect (QHE) theoretically provides a universal standard of
electrical resistance in terms of the Planck constant $h$ and the electron
charge $e$. In graphene, the spacing between the lowest discrete energy levels
occupied by the charge carriers under magnetic field is exceptionally large.
This is prom... | 1504.06511v1 |
2009-12-24 | Nanostructural Superconducting Materials for Fault Current Limiters and Cryogenic Electrical Machines | Materials of the Y-Ba-Cu-O (melt-textured YBa2Cu3O7-d-based materials or
MT-YBCO) and Mg-B-O (MgB2-based materials) systems with high superconducting
performance, which can be attained due to the formation of regularly
distributed nanostructural defects and inhomogenities in their structure can be
effectively used in c... | 0912.4899v1 |
2010-11-01 | Modeling materials with optimized transport properties | Following demands for materials with peculiar transport properties, e.g. in
magnetoelectronics or thermoelectrics, there is a need for materials modeling
at the quantum-mechanical level. We combine density-functional with various
scale-bridging tools to establish correlations between the macroscopic
properties and the ... | 1011.0324v1 |
2023-05-15 | Thermal conductivity of macroporous graphene aerogel measured using high resolution comparative infrared thermal microscopy | Graphene aerogel (GA) is a promising material for thermal management
applications across many fields due to its lightweight and thermally insulative
properties. However, standard values for important thermal properties, such as
thermal conductivity, remain elusive due to the lack of reliable
characterization techniques... | 2305.09033v3 |
2024-04-18 | Assessing the Risk of Proliferation via Fissile Material Breeding in ARC-class Fusion Reactors | Construction of a nuclear weapon requires access to kilogram-scale quantities
of fissile material, which can be bred from fertile material like U-238 and
Th-232 via neutron capture. Future fusion power plants, with total neutron
source rates in excess of $10^{20}$ n/s, could breed weapons-relevant
quantities of fissile... | 2404.12451v1 |
2022-01-10 | A theory for anisotropic magnetoresistance in materials with two vector order parameters | Anisotropic magnetoresistance (AMR) and related planar Hall resistance (PHR)
are ubiquitous phenomena of magnetic materials. Although the universal angular
dependences of AMR and PHR in magnetic polycrystalline materials with one order
parameter are well known, no similar universal relation for other class of
magnetic ... | 2201.03316v1 |
2003-11-04 | Resistive transition in $π$-junction superconductors | The resistivity behavior of inhomogeneous superconductors with random $\pi$
junctions, as in high-$T_c$ materials with d-wave symmetry, is studied by
numerical simulation of a three-dimensional XY spin glass model. Above a
concentration threshold of antiferromagnetic couplings, a resistive transition
is found in the ch... | 0311083v1 |
2004-07-28 | Universal behavior of giant electroresistance in epitaxial La0.67Ca0.33MnO3 thin films | We report a giant resistance drop induced by dc electrical currents in
La0.67Ca0.33MnO3 epitaxial thin films. Resistance of the patterned thin films
decreases exponentially with increasing current and a maximum drop shows at the
temperature of resistance peak Tp. Variation of resistance with current
densities can be sc... | 0407719v2 |
2005-06-17 | Experimental Evidence for Zero DC Resistance of Superconductors | Even after nearly a century of discovery of superconductivity, there has been
no direct experimental proof of the expected zero resistance of
superconductors. Indeed, it has been believed that it is impossible to
experimentally show that the resistance has fallen exactly to zero. In this
work we demonstrate that the dc... | 0506426v2 |
2007-11-29 | Increase of Thermal Resistance Between a Nanostructure and a Surface due to Phonon Multireflections | The thermal resistance between a nanostructure and a half-body is calculated
in the framework of particle-phonons physics. The current models approximate
the nanostructure as a thermal bath. We prove that the multireflections of heat
carriers in the nanostructure significantly increase resistance in
contradiction with ... | 0711.4718v1 |
2009-09-07 | Low-Temperature Resistivity Anomalies in Periodic Curved Surfaces | Effects of periodic curvature on the the electrical resistivity of corrugated
semiconductor films are theoretically considered. The presence of a
curvature-induced potential affects the motion of electrons confined to the
thin curved film, resulting in a significant resistivity enhancement at
specific values of two geo... | 0909.1135v1 |
2011-02-23 | Pt/Ti/Al2O3/Al tunnel junctions showing electroforming-free bipolar resistive switching behavior | We investigated electroforming-free bipolar resistive switching behavior in
Pt/Ti/Al2O3/Al tunnel junctions where the Al2O3 tunnel barrier was naturally
formed on Al in air. Various compliance current values for the junction's set
switching successfully lead to various resistance values in its low resistance
state, sug... | 1102.4720v1 |
2013-05-09 | Electrostatic gating of metallic and insulating phases in SmNiO3 ultrathin films | The correlated electron system SmNiO3 exhibits a metal-insulator phase
transition at 130 {\deg}C. Using an ionic liquid as an electric double layer
(EDL) gate on three-terminal ultrathin SmNiO3 devices, we investigate gate
control of the channel resistance and transition temperature. Resistance
reduction is observed ac... | 1305.2111v1 |
2013-06-18 | Some features of anomalous conductivity of vinylene and vinyl chloride copolymer films | Manifestations of anomalous conductivity in polar dielectric films is
demonstrated for the first time on samples of copolymer of vinylene and vinyl
chloride, as was previously observed on modified PVC samples. On the base of
these experimental results important new insights into the physical sense of
traditionally used... | 1306.4127v1 |
2013-07-02 | The density of states of graphene underneath a metal electrode and its correlation with the contact resistivity | The density of states (DOS) of graphene underneath a metal is estimated
through a quantum capacitance measurement of the metal/graphene/SiO2/n+-Si
contact structure fabricated by a resist-free metal deposition process.
Graphene underneath Au maintains a linear DOS - energy relationship except near
the Dirac point, wher... | 1307.0690v1 |
2013-08-06 | Correct nonlinearity and hysteresis of volt-ampere characteristics of spin valves, magnetic tunnel junctions and memristors | There are essential achievements in synthesis of interesting for creation of
compact electronic memory switched by own current structures of spin valves and
magnetic tunnel junctions with hysteretic current dependences of resistance. In
the offered message the attention to discrepancy to physical principles of a
hyster... | 1308.1220v1 |
2015-09-28 | Multi-level Resistive Switching Characteristics of W/Co:TiO2/FTO Structures | In the present work, multi-level resistive switching (RS) in W/Co:TiO2/FTO
structures induced by a multi-mixed mechanism was studied. It was found that
the devices could be reproducibly programmed into three nonvolatile resistance
states. And the directly switching between any resistance states was realized.
This incre... | 1509.08211v1 |
2020-09-16 | The electric pulses induced multi-resistance states in the hysteresis temperature range of 1T-TaS2 and 1T-TaS1.6Se0.4 | The electric pulse-induced responses of 1T-TaS2 and 1T-TaS1.6Se0.4 crystals
in the commensurate charge-density-wave (CCDW) phase in the hysteresis
temperature range have been investigated. We observed that abrupt multiple
steps of the resistance are excited by electric pulses at a fixed temperature
forming multi metast... | 2009.07587v1 |
2012-01-26 | Resistive switching effects on the spatial distribution of phases in metal-complex oxide interfaces | In order to determine the key parameters that control the resistive switching
mechanism in metal-complex oxides interfaces, we have studied the electrical
properties of metal / YBa2Cu3O7-d (YBCO) interfaces using metals with different
oxidation energy and work function (Au, Pt, Ag) deposited by sputtering on the
surfac... | 1201.5670v1 |
2019-08-21 | Artificial Spin Ice Phase-Change Memory Resistors | We study the implications of the anisotropic magnetic resistance on permalloy
nanowires, and in particular on the property of the resistance depending on the
type of lattice. We discuss how the internal spin configuration of artificial
spin ice nanowires can affect their effective resistive state, and which
mechanisms ... | 1908.08073v1 |
2020-07-09 | Modeling Resistive Switching in Nanogranular Metal Films | Films produced by assembling bare gold clusters well beyond the electrical
percolation threshold show a resistive switching behavior whose investigation
has started only recently. Here we address the challenge to charaterize the
resistance of a nanogranular film starting from limited information on the
structure at the... | 2007.04710v2 |
2019-01-12 | Development of the Micro Pixel Chamber with resistive electrodes | We developed a novel design of a Micro Pixel Chamber ($\mu$-PIC) with
resistive electrodes for a charged-particle-tracking detector in high-rate
applications. Diamond-Like Carbon (DLC) thin film is used for the cathodes. The
resistivity can be controlled flexibly ($\mathrm{10^{5-7}k\Omega/sq.}$) at high
uniformity. The... | 1901.03836v1 |
2015-10-13 | Interface-mediated thermomechanical effects during high velocity impact between monocrystalline surfaces | High velocity impact between crystalline surfaces is important for a range of
material phenomena, yet a fundamental understanding of the effect of surface
structure, energetics and kinetics on the underlying thermo-mechanical response
remains elusive. Here, we employ non-equilibrium molecular dynamics (NEMD)
simulation... | 1510.03775v1 |
2007-10-03 | Directional-dependent thermally activated motion of vortex bundles and theory of anomalous Hall effect in type-II conventional and high-Tc superconductors | The anomalous Hall effect for type-II conventional and high-Tc
superconductors is studied based upon the theory of thermally activated motion
of vortex bundles jumping over the directional-dependent energy barrier. It is
shown that the Hall anomaly is universal for type-II conventional and high-Tc
superconductors as we... | 0710.0700v2 |
2022-04-20 | Superconducting bimodal ionic photo-memristor | Memristive circuit elements constitute a cornerstone for novel electronic
applications, such as neuromorphic computing, called to revolutionize
information technologies. By definition, memristors are sensitive to the
history of electrical stimuli, to which they respond by varying their
electrical resistance across a co... | 2204.09255v1 |
2018-11-03 | Modern Data Analytics Approach to Predict Creep of High-Temperature Alloys | A breakthrough in alloy design often requires comprehensive understanding in
complex multi-component/multi-phase systems to generate novel material
hypotheses. We introduce a modern data analytics workflow that leverages
high-quality experimental data augmented with advanced features obtained from
high-fidelity models.... | 1811.01239v1 |
2021-01-24 | Electronic structure and transport properties of sol-gel-derived high-entropy Ba(Zr0.2Sn0.2Ti0.2Hf0.2Nb0.2)O3 thin films | High-entropy perovskite thin films, as the prototypical representative of the
high-entropy oxides with novel electrical and magnetic features, have recently
attracted great attention. Here, we reported the electronic structure and
charge transport properties of sol-gel-derived high-entropy
Ba(Zr0.2Sn0.2Ti0.2Hf0.2Nb0.2)... | 2101.09633v2 |
2015-06-16 | Unforeseen high temperature and humidity stability of FeCl$_3$ intercalated few layer graphene | We present the first systematic study of the stability of the structure and
electrical properties of FeCl$_3$ intercalated few-layer graphene to high
levels of humidity and high temperature. Complementary experimental techniques
such as electrical transport, high resolution transmission electron microscopy
and Raman sp... | 1506.04907v1 |
2009-12-24 | Properties of MgB2 bulk | The review considers bulk MgB2-based materials in terms of their structure,
superconducting and mechanical properties. Superconducting transition
temperatures of 34.5-39.4 K, critical current densities of 1.8-1.0 x E6 A/sq.cm
in self field and 103 in 8 T field at 20 K, 3-1.5xE5 A/sq. cm in self field at
35 K, HC2 15 T ... | 0912.4906v1 |
2017-10-23 | Realization of a hole-doped Mott insulator on a triangular silicon lattice | The physics of doped Mott insulators is at the heart of some of the most
exotic physical phenomena in materials research including insulator-metal
transitions, colossal magneto-resistance, and high-temperature
superconductivity in layered perovskite compounds. Advances in this field would
greatly benefit from the avail... | 1710.08065v1 |
2020-04-12 | Investigation on the Mechanical Properties of Functionally Graded Nickel and Aluminium Alloy by Molecular Dynamics Study | Functionally graded materials (FGMs), have drawn considerable attention of
the worldwide researchers and scientific community because of its unique
mechanical, thermal and electrical properties which may be exploited by varying
the compositions gradually over volume. This makes FGM multifunctional material
(properties ... | 2004.05651v1 |
1997-03-03 | Longitudinal and transverse dissipation in a simple model for the vortex lattice with screening | Transport properties of the vortex lattice in high temperature
superconductors are studied using numerical simulations in the case in which
the non-local interactions between vortex lines are dismissed. The results
obtained for the longitudinal and transverse resistivities in the presence of
quenched disorder are compa... | 9703035v1 |
1997-08-19 | Metallization of Fluid Hydrogen | The electrical resistivity of liquid hydrogen has been measured at the high
dynamic pressures, densities and temperatures that can be achieved with a
reverberating shock wave. The resulting data are most naturally interpreted in
terms of a continuous transition from a semiconducting to a metallic, largely
diatomic flui... | 9708144v1 |
1997-09-16 | The Metallic-Like Conductivity of a Two-Dimensional Hole System | We report on a zero magnetic field transport study of a two-dimensional,
variable-density, hole system in GaAs. As the density is varied we observe, for
the first time in GaAs-based materials, a crossover from an insulating behavior
at low-density, to a metallic-like behavior at high-density, where the metallic
behavio... | 9709184v3 |
1998-04-23 | Hysteretic behavior and evidence for domain formation in a double-layer quantum Hall system at total filling factor 2 | We report anomalous behavior in a double-layer two dimensional hole gas
(2DHG) at even integer filling factors which includes hysteresis in the
longitudinal and Hall resistances and a very weak temperature dependence of the
resistance minima. All anomalies disappear and the conventional quantum Hall
effect behavior rec... | 9804256v2 |
1998-11-18 | Hall-effect in LuNi_2B_2C in normal and superconducting mixed states | The Hall resistivity rho_{xy} of LuNi_2B_2C is negative in the normal as well
as in the mixed state and has no sign reversal typical for high-T_c
superconductors. A distinct nonlinearity in the rho_{xy} dependence on field H
was found in the normal state for T < 40K, accompanied by a large
magnetoresistance reaching +9... | 9811273v1 |
1999-07-22 | Charge carrier density collapse in La_0.67Ca_0.33MnO_3 and La_0.67Sr_0.33MnO_3 epitaxial thin films | We measured the temperature dependence of the linear high field Hall
resistivity of La_0.67Ca_0.33MnO_3 (T_C=232K) and La_0.67Sr_0.33MnO_3
(T_C=345K) thin films in the temperature range from 4K up to 360K in magnetic
fields up to 20T. At low temperatures we find a charge carrier density of 1.3
and 1.4 holes per unit ce... | 9907346v1 |
1999-08-05 | Fermi-level alignment at metal-carbon nanotube interfaces: application to scanning tunneling spectroscopy | At any metal-carbon nanotube interface there is charge transfer and the
induced interfacial field determines the position of the carbon nanotube band
structure relative to the metal Fermi-level. In the case of a single-wall
carbon nanotube (SWNT) supported on a gold substrate, we show that the charge
transfers induce a... | 9908073v3 |
1999-08-25 | Hall effect of epitaxial double-perovskite Sr_2FeMoO_6 thin films | We prepared high epitaxial thin films of the compound Sr_2FeMoO_6 with narrow
rocking curves by pulsed laser deposition. The diagonal and nondiagonal
elements of the resistivity tensor were investigated at temperatures from 4 K
up to room temperature in magnetic fields up to 8 T. An electronlike ordinary
Hall effect an... | 9908361v2 |
1999-10-15 | Electronic Transport in a Three-dimensional Network of 1-D Bismuth Quantum Wires | The resistance R of a high density network of 6 nm diameter Bi wires in
porous Vycor glass is studied in order to observe its expected semiconductor
behavior. R increases from 300 K down to 0.3 K. Below 4 K, where R varies
approximately as ln(1/T), the order-of-magnitude of the resistance rise, as
well as the behavior ... | 9910241v1 |
2000-01-25 | Pressure Induced Quantum Critical Point and Non-Fermi-Liquid Behavior in BaVS3 | The phase diagram of BaVS3 is studied under pressure using resistivity
measurements. The temperature of the metal to nonmagnetic Mott insulator
transition decreases under pressure, and vanishes at the quantum critical point
p_cr=20kbar. We find two kinds of anomalous conducting states. The
high-pressure metallic phase ... | 0001371v2 |
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