publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2010-11-05 | Interplay between the electrical transport properties of GeMn thin films and Ge substrates | We present evidence that electrical transport studies of epitaxial p-type
GeMn thin films fabricated on high resistivity Ge substrates are severely
influenced by parallel conduction through the substrate, related to the large
intrinsic conductivity of Ge due to its small bandgap. Anomalous Hall
measurements and large m... | 1011.1450v1 |
2011-08-31 | Local Tunneling Magnetoresistance probed by Low-Temperature Scanning Laser Microscopy | Tunneling magnetoresistance (TMR) in a vertical manganite junction was
investigated by low-temperature scanning laser microscopy (LTSLM) allowing to
determine the local relative magnetization M orientation of the two electrodes
as a function of magnitude and orientation of the external magnetic field H.
Sweeping the fi... | 1108.6159v1 |
2012-04-16 | Experimental investigation of the magnetic field driven superconductor/ insulator transition in underdoped $La_{2-x}Sr_xCuO_4$ thin films | The magnetic field driven superconductor/insulator transition is studied in a
large variety of $La_{2-x}Sr_xCuO_4$ thin films of various Sr dopings.
Temperature dependence of the resistivity down to 4.2 or 1.5 K under high
pulsed magnetic field (up to 57 T) is analyzed. In particular, the existence of
plateaus in the r... | 1204.3493v1 |
2012-08-20 | Universal linear in temperature resistivity from black hole superradiance | Observations across many families of unconventional materials motivative the
search for robust mechanisms producing linear in temperature d.c. resistivity.
BKT quantum phase transitions are commonplace in holographic descriptions of
finite density matter, separating critical and ordered phases. We show that at
a hologr... | 1208.4102v1 |
2012-11-12 | Magnetic and transport properties of tetragonal- or cubic-Heusler-type Co-substituted Mn-Ga epitaxial thin films | The composition dependence of the structural, magnetic, and transport
properties of epitaxially grown Mn-Co-Ga films were investigated. The crystal
structure was observed to change from tetragonal to cubic as the Co content was
increased. In terms of the dependence of saturation magnetization on the Co
content, relativ... | 1211.2524v1 |
2013-03-19 | Self-Formation of Sub-10-nm Nanogaps by Silicidation for Resistive Switch in Air | We developed a simple and reliable method for the fabrication of sub-10-nm
wide nanogaps. The self-formed nanogap is based on the stoichiometric
solid-state reaction between metal and Si atoms during silicidation process.
The nanogap width is deter- mined by the metal layer thickness. Our proposed
method produces nanog... | 1303.4586v1 |
2013-10-13 | Origin of the energy gap in the narrow-gap semiconductor FeSb2 revealed by high-pressure magnetotransport measurements | To elucidate an origin of the two energy gaps in the narrow-gap semiconductor
FeSb2, we have investigated the effects of hydrostatic pressure on the
resistivity, Hall resistance and magnetoresistance at low temperatures. The
larger energy gap evaluated from the temperature dependence of resistivity
above 100 K is enhan... | 1310.3451v1 |
2013-10-30 | Analysis of post wet chemistry heat treatment effects on Nb SRF surface resistance | Most of the current research in superconducting radio frequency (SRF)
cavities is focused on ways to reduce the construction and operating cost of
SRF based accelerators as well as on the development of new or improved cavity
processing techniques. The increase in quality factors is the result of the
reduction of the s... | 1310.8159v1 |
2014-02-04 | Multilevel recording in Bi-deficient Pt/BFO/SRO heterostructures based on ferroelectric resistive switching targeting high-density information storage in nonvolatile memories | We demonstrate the feasibility of multilevel recording in
Pt/Bi(1-d)FeO3/SrRuO3 capacitors using the ferroelectric resistive switching
phenomenon exhibited by the Pt/Bi(1-d)FeO3 interface. A tunable population of
up and down ferroelectric domains able to modulate the Schottky barrier height
at the Pt/Bi(1-d)FeO3 interf... | 1402.0739v1 |
2014-05-06 | Effect of realistic metal electronic structure on the lower limit of contact resistivity of epitaxial metal-semiconductor contacts | The effect of realistic metal electronic structure on the lower limit of
resistivity in [100] oriented n-Si is investigated using full band Density
Functional Theory and Semi-Empirical Tight Binding (TB) calculations. Using
simulation unit cells guided by the interface chemistry of epitaxial CoSi2 on
[100] oriented Si ... | 1405.1317v1 |
2014-11-16 | Laser doping for ohmic contacts in n-type Ge | We achieved ohmic contacts down to 5 K on standard n-doped Ge samples by
creating a strongly doped thin Ge layer between the metallic contacts and the
Ge substrate. Thanks to the laser doping technique used, Gas Immersion Laser
Doping, we could attain extremely large doping levels above the solubility
limit, and thus r... | 1411.4325v1 |
2015-02-19 | Anomalous impact of hydrostatic pressure on superconductivity of polycrystalline LaO0.5F0.5BiSe2 | We report bulk superconductivity at 2.5K in LaO0.5F0.5BiSe2 compound through
the DC magnetic susceptibility and electrical resistivity measurements. The
synthesized LaO0.5F0.5BiSe2 compound is crystallized in tetragonal structure
with space group P4/nmm and Reitveld refined lattice parameters are a= 4.15(1)A
and c=14.0... | 1502.05502v3 |
2016-06-13 | Performance studies of MRPC prototypes for CBM | Multi-gap Resistive Plate Chambers (MRPCs) with multi-strip readout are
considered to be the optimal detector candidate for the Time-of-Flight (ToF)
wall in the Compressed Baryonic Matter (CBM) experiment. In the R&D phase MRPCs
with different granularities, low-resistive materials and high voltage stack
configurations... | 1606.04917v1 |
2016-06-28 | Observation of quantum Hall effect in a microstrained Bi$_2$Se$_3$ single crystal | We report the observation of quantum Hall effect (QHE) in a Bi$_2$Se$_3$
single crystal having carrier concentration ($n$)
$\sim1.13\times10^{19}$cm$^{-3}$, three dimensional Fermi surface and bulk
transport characteristics. The plateaus in Hall resistivity coincide with
minima of Shubnikov de Haas oscillations in resi... | 1606.08576v1 |
2016-07-20 | Nonlocal topological valley transport at large valley Hall angles | Berry curvature hot spots in two-dimensional materials with broken inversion
symmetry are responsible for the existence of transverse valley currents, which
give rise to giant nonlocal dc voltages. Recent experiments in high-quality
gapped graphene have highlighted a saturation of the nonlocal resistance as a
function ... | 1607.05902v1 |
2016-10-26 | Resistive Switching and Voltage Induced Modulation of Tunneling Magnetoresistance in Nanosized Perpendicular Organic Spin Valves | Nanoscale multifunctional perpendicular organic spin valves have been
fabricated. The devices based on an La$_{0.7}$Sr$_{0.3}$MnO$_3$/Alq$_3$/Co
trilayer show resistive switching of up to 4-5 orders of magnitude and
magnetoresistance as high as -70% the latter even changing sign when voltage
pulses are applied. This co... | 1610.08218v1 |
2016-11-03 | Current crowding mediated large contact noise in graphene field-effect transistors | The impact of the intrinsic time-dependent fluctuations in the electrical
resistance at the graphene-metal interface or the contact noise, on the
performance of graphene field effect transistors, can be as adverse as the
contact resistance itself, but remains largely unexplored. Here we have
investigated the contact no... | 1611.01181v2 |
2017-09-02 | Signatures of the Kondo effect in VSe2 | VSe2 is a transition metal dichaclogenide which has a charge-density wave
transition that has been well studied. We report on a low-temperature upturn in
the resistivity and, at temperatures below this resistivity minimum, an unusual
magnetoresistance which is negative at low fields and positive at higher
fields, in si... | 1709.00594v1 |
2017-11-20 | Computational analysis of short-range interactions between an edge dislocation and an array of equally-spaced identical shearable or non-shearable precipitates | The interaction between dislocations and precipitates plays an important role
in the mechanical behavior of alloys. To provide more insight into the physics
of this interaction, this research analyzes short-range interactions of an edge
dislocation with an array of equally-spaced identical precipitates. We use a
modifi... | 1711.07428v2 |
2018-01-25 | Non-volatile bipolar resistive switching in sol-gel derived BiFeO3 thin films | BiFeO3 thin films are deposited on FTO coated glass substrates using a simple
sol-gel deposition technique, limiting thickness about 70 nm and Ag/BiFeO3/FTO
RRAM devices are prepared. The devices showed low-voltage bipolar switching
with the maximum Ion/Ioff ~ 450, and low set and reset voltages ~ 1.1 V and
-1.5 V, res... | 1801.08502v1 |
2017-03-22 | A comparative study of resists and lithographic tools using the Lumped Parameter Model | A comparison of the performance of high resolution lithographic tools is
presented here. We use extreme ultraviolet interference lithography, electron
beam lithography, and He ion beam lithography tools on two different resists
that are processed under the same conditions. The dose-to-clear and the
lithographic contras... | 1703.08229v1 |
2020-04-15 | Radiation reaction friction: Resistive material medium | We explore a novel method of describing the radiation friction of particles
traveling through a mechanically resistive medium. We introduce a particle
motion induced matter warping along the path in a manner assuring that charged
particle dynamics occurs subject to radiative energy loss described by the
Larmor formula.... | 2004.09634v2 |
2020-04-28 | Temperature-Dependent Resistivity of Alternative Metal Thin Films | The temperature coefficients of the resistivity (TCR) of Cu, Ru, Co, Ir, and
W thin films have been investigated as a function of film thickness below 10
nm. Ru, Co, and Ir show bulk-like TCR values that are rather independent of the
thickness whereas the TCR of Cu increases strongly with decreasing thickness.
Thin W f... | 2004.13854v3 |
2007-10-26 | Transport and magnetic properties in YBaCo2O5.45: Focus on the high-temperature transition | The electronic transport properties and the magnetic susceptibility were
measured in detail in $YBaCo_2O_{5.45}$. Close to the so-called metal-insulator
transition, strong effects of resistance relaxation, a clear thermal hysteresis
and a sudden increase of the resistance noise are observed. This is likely due
to the f... | 0710.5008v1 |
2017-04-24 | Near-perfect spin filtering and negative differential resistance in an Fe(II)S complex | Density functional theory and nonequilibrium Green's function calculations
have been used to explore spin-resolved transport through the high-spin state
of an iron(II)sulfur single molecular magnet. Our results show that this
molecule exhibits near-perfect spin filtering, where the spin-filtering
efficiency is above 99... | 1704.07327v1 |
2017-07-08 | Electron and thermal transport via Variable Range Hopping in MoSe$_{2}$ single crystals | Bulk single crystal Molybdenum diselenide has been studied for its electronic
and thermal transport properties. We perform resistivity measurements with
current in-plane (CIP) and current perpendicular to plane (CPP) as a function
of temperature. The CIP measurements exhibit metal to semiconductor transition
at $\simeq... | 1707.02426v1 |
2015-04-14 | Voltage equilibration for reactive atomistic simulations of electrochemical processes | We introduce EChemDID, a model to describe electrochemical driving force in
reactive molecular dynamics simulations. The method describes the equilibration
of external electrochemical potentials (voltage) within metallic structures and
their effect on the self consistent partial atomic charges used in reactive
molecula... | 1504.03621v1 |
2016-09-29 | Magnetotransport properties and evidence of topological insulating state in LaSbTe | In this report, we present the magnetotransport and magnetization properties
of LaSbTe single crystals. Magnetic field-induced turn-on behavior and
low-temperature resistivity plateau have been observed. By adopting both
metal-semiconductor crossover and Kohler scaling analysis, we have discussed
the possible origin of... | 1609.09397v3 |
2019-11-20 | Investigation of the phase separation property in La$_{0.2}$Pr$_{0.4}$Ca$_{0.4}$MnO$_3$ manganite | We report a comprehensive investigation of La0.2Pr0.4Ca0.4MnO3 to clarify the
micrometre scale phase separation phenomenon in the mixed valent manganite
(La,Pr,Ca)MnO3. The compound shows multiple magnetic transitions, in which the
charge-ordered state is converted into a ferromagnetic state in steps with the
applicati... | 1911.08881v1 |
2021-02-01 | Real-time Hall-effect detection of current-induced magnetization dynamics in ferrimagnets | Measurements of the transverse Hall resistance are widely used to investigate
electron transport, magnetization phenomena, and topological quantum states.
Owing to the difficulty of probing transient changes of the transverse
resistance, the vast majority of Hall effect experiments are carried out in
stationary conditi... | 2102.00716v1 |
2021-04-23 | Deformation and tearing of graphene-reinforced elastomer nanocomposites | The resistance to failure through tearing is a crucial mechanical property
for the application of different elastomers. In this work, graphene
nanoplatelets (GNPs) were introduced into a fluoroelastomer (FKM) matrix with
the aim of improving its tear resistance. The fracture energy through tearing
was evaluated using t... | 2104.11535v1 |
2021-04-27 | Electronegative metal dopants improve switching consistency in Al2O3 resistive switching devices | Resistive random access memories are promising for non-volatile memory and
brain-inspired computing applications. High variability and low yield of these
devices are key drawbacks hindering reliable training of physical neural
networks. In this study, we show that doping an oxide electrolyte, Al2O3, with
electronegativ... | 2104.13301v2 |
2021-05-06 | Contact resistance of various metallisation schemes to superconducting boron doped diamond between 1.9 and 300 K | Diamond is a material that offers potential in numerous device applications.
In particular, highly boron doped diamond is attractive due to its
superconductivity and high Young's Modulus. The fabrication of stable, low
resistance, ohmic contacts is essential to ensure proper device function.
Previous work has establish... | 2105.02839v1 |
2021-08-10 | Giant Piezospintronic Effect in a Noncollinear Antiferromagnetic Metal | One of the main bottleneck issues for room-temperature antiferromagnetic
spintronic devices is the small signal read-out owing to the limited
anisotropic magnetoresistance in antiferromagnets. However, this could be
overcome by either utilizing the Berry-curvature-induced anomalous Hall
resistance in noncollinear antif... | 2108.04439v1 |
2021-09-07 | Strain-dependent resistance and giant gauge factor in monolayer WSe2 | We report the strong dependence of resistance on uniaxial strain in monolayer
WSe2 at various temperatures, where the gauge factor can reach as large as
2400. The observation of strain-dependent resistance and giant gauge factor is
attributed to the emergence of nonzero Berry curvature dipole. Upon increasing
strain, B... | 2109.02980v1 |
2021-09-12 | Coexistence of resistance oscillations and the anomalous metal phase in a lithium intercalated TiSe$_2$ superconductor | Superconductivity and charge density wave (CDW) appear in the phase diagram
of a variety of materials including the high - $T$$_c$ cuprate family and many
transition metal dichalcogenides (TMDs). Their interplay may give rise to
exotic quantum phenomena. Here, we show that superconducting arrays can
spontaneously form ... | 2109.05450v1 |
2021-10-11 | Observation of Exchange Bias in Antiferromagnetic Cr$_{0.79}$Se due to the Coexistence of Itinerant Weak Ferromagnetism at Low-temperatures | We report on the structural, electrical transport, and magnetic properties of
antiferromagnetic transition-metal monochalcogenide Cr$_{0.79}$Se. Different
from the existing off-stoichiometric compositions, Cr$_{0.79}$Se is found to be
synthesised into the same NiAs-type hexagonal crystal structure of CrSe.
Resistivity ... | 2110.05058v1 |
2022-06-16 | Fill Factor Losses and Deviations from the Superposition Principle in Lead-Halide Perovskite Solar Cells | The enhancement of the fill factor in the current generation of perovskite
solar cells is the key for further efficiency improvement. Thus, methods to
quantify the fill factor losses are urgently needed. A classical method to
quantify Ohmic and non-Ohmic resistive losses in solar cells is based on the
comparison betwee... | 2207.02297v1 |
2022-12-07 | Self-assembled neuromorphic networks at self-organized criticality in Ag-hBN platform | Networks and systems which exhibit brain-like behavior can analyze
information from intrinsically noisy and unstructured data with very low power
consumption. Such characteristics arise due to the critical nature and complex
interconnectivity of the brain and its neuronal network. We demonstrate that a
system comprisin... | 2301.01619v1 |
2023-06-13 | An Evaluation of Multi-Component Weft-Knitted Twill Structures for Sensing Tensile Force | We present multi-component knitted resistive sensors for tracking tensile
force. The knits were fabricated using a Twill structure, which is a simple
pattern featuring anisotropic elastic behavior, providing high stability along
course-direction. Our sensors are made of two commercially available conductive
yarn types,... | 2306.07612v1 |
2024-04-13 | Combinatorial Printing of Functionally Graded Solid-State Electrolyte for High-Voltage Lithium Metal Batteries | Heterogeneous multilayered solid-state electrolyte (HMSSE) has been widely
explored for their broadened working voltage range and compatibility with
electrodes. However, due to the limitations of traditional manufacturing
methods such as casting, the interface between electrolyte layers in HMSSE can
decrease the ionic ... | 2404.09008v1 |
2024-05-29 | Multipacting mitigation by atomic layer deposition: the case study of Titanium Nitride | This study investigates the use of Atomic Layer deposition (ALD) to mitigate
multipacting phenomena inside superconducting radio frequency (SRF) cavities
used in particle accelerators. The unique ALD capability to control the film
thickness down to the atomic level on arbitrary complex shape objects enable
the fine tun... | 2405.18949v1 |
2015-05-29 | Few Layer HfS2 FET | 2D materials are expected to be favorable channel materials for field-effect
transistor (FET) with extremely short channel length because of their superior
immunity to short-channel effects (SCE). Graphene, which is the most famous 2D
material, has no bandgap without additional techniques and this property is
major hin... | 1505.07970v1 |
2011-10-29 | From mixed valence to the Kondo lattice regime | Many heavy fermion materials are known to crossover from the Kondo lattice
regime to the mixed-valent regime or vice-versa as a function of pressure or
doping. We study this crossover theoretically by employing the periodic
Anderson model within the framework of the dynamical mean field theory. Changes
occurring in the... | 1110.6498v1 |
2021-04-01 | Enhanced spin injection in molecularly functionalized graphene via ultra-thin oxide barriers | Realisation of practical spintronic devices relies on the ability to create
and detect pure spin currents. In graphene-based spin valves this is usually
achieved by injection of spin-polarized electrons from ferromagnetic contacts
via a tunnel barrier, with Al2O3 and MgO used most widely as barrier materials.
However, ... | 2104.00709v1 |
2017-05-16 | Application of flash method in the measurements of interfacial thermal resistance in layered and particulate composite materials | Presented study concerns the possibility of evaluation of interfacial thermal
resistance (ITR) between the constituents in composite materials with the use
of flash technique. Two variants of such measurement are considered, the first
of which is the measurement of ITR between two bonded layers of different
materials w... | 1705.05621v1 |
1998-12-23 | Temperature dependence of electric resistance and magnetoresistance of pressed nanocomposites of multilayer nanotubes with the structure of nested cones | Bulk samples of carbon multilayer nanotubes with the structure of nested
cones (fishbone structure) suitable for transport measurements, were prepared
by compressing under high pressure (~25 kbar) a nanotube precursor synthesized
through thermal decomposition of polyethylene catalyzed by nickel. The
structure of the in... | 9812384v1 |
2017-01-07 | Spatially uniform resistance switching of low current, high endurance titanium-niobium-oxide memristors | We analyzed micrometer-scale titanium-niobium-oxide prototype memristors,
which exhibited low write-power (<3 {\mu}W) and energy (<200 fJ/bit/{\mu}m2),
low read-power (~nW), and high endurance (>millions of cycles). To understand
their physico-chemical operating mechanisms, we performed in-operando
synchrotron x-ray tr... | 1701.01784v1 |
2001-02-09 | Superconducting Properties of MgB2 Bulk Materials Prepared by High Pressure Sintering | High-density bulk materials of a newly discovered 40K intermetallic MgB2
superconductor were prepared by high pressure sintering. Superconducting
transition with the onset temperature of 39K was confirmed by both magnetic and
resistive measurements. Magnetization versus field (M-H) curve shows the
behavior of a typical... | 0102167v1 |
2018-09-17 | High quality factor graphene-based 2D heterostructure mechanical resonator | Ultralight mechanical resonators based on low-dimensional materials are well
suited as exceptional transducers of minuscule forces or mass changes. However,
the low dimensionality also provides a challenge to minimize resistive losses
and heating. Here, we report on a novel approach that aims to combine different
2D ma... | 1809.06169v1 |
2022-04-22 | Comparison of different sensor thicknesses and substrate materials for the monolithic small collection-electrode technology demonstrator CLICTD | Small collection-electrode monolithic CMOS sensors profit from a high
signal-to-noise ratio and a small power consumption, but have a limited active
sensor volume due to the fabrication process based on thin high-resistivity
epitaxial layers. In this paper, the active sensor depth is investigated in the
monolithic smal... | 2204.10569v2 |
2021-11-01 | A New Class of Alumina-Forming Superalloy for 3D Printing | A new class of crack-resistant nickel-based superalloy containing high
$\gamma^\prime$ fraction is studied for the laser-powder bed fusion (L-PBF)
process. The effects of the (Nb+Ta)/Al ratio is emphasised, a strategy that is
shown to confer excellent low-temperature strength whilst maintaining oxidation
resistance at ... | 2111.01049v1 |
2005-11-08 | Development of the Charge Particle Detector Based on CVD - Diamond | High radiation hardness, chemical resistance, high temperature operation
capabilities stimulate a growing interest to use diamond materials as detectors
of ionizing radiation. Samples of CVD-diamond materials in sizes 12 square mm
and 4 square mm with thickness from 50 microns up to 500 microns have been
grown in INR R... | 0511068v1 |
2018-10-24 | High Strain Rate Behaviour of Nano-quasicrystalline Al93Fe3Cr2Ti2 Alloy and Composites | In the present work, we demonstrate for the first time the outstanding
dynamic mechanical properties of nano-quasicrystalline Al93Fe3Cr2Ti2 at.% alloy
and composites. Unlike most crystalline aluminium-based alloys, this alloy and
composites exhibit substantial strain rate sensitivity and retain much of their
ductility ... | 1810.10476v2 |
2019-12-24 | Large spin Hall angle and spin mixing conductance in highly resistive antiferromagnetic Mn2Au | Antiferromagnetic (AFM) materials recently have shown interest in the
research in spintronics due to its zero stray magnetic field, high anisotropy,
and spin orbit coupling. In this context, the bi-metallic AFM Mn2Au has drawn
attention because it exhibits unique properties and its Neel temperature is
very high. Here, ... | 1912.11522v2 |
2008-09-09 | Printed Graphene Circuits | we have fabricated transparent electronic devices based on graphene materials
with thickness down to one single atomic layer by the transfer printing method.
The resulting printed graphene devices retain high field effect mobility and
have low contact resistance. The results show that the transfer printing method
is ca... | 0809.1634v1 |
2021-08-29 | A graph based workflow for extracting grain-scale toughness from meso-scale experiments | We introduce a novel machine learning computational framework that aims to
compute the material toughness, after subjected to a short training process on
a limited meso-scale experimental dataset. The three part computational
framework relies on the ability of a graph neural network to perform high
accuracy predictions... | 2108.12783v1 |
2022-08-25 | Magnetoresistive behaviour of ternary Cu-based materials processed by high-pressure torsion | Severe plastic deformation using high-pressure torsion of ternary Cu-based
materials (CuFeCo and CuFeNi) was used to fabricate bulk samples with a
nanocrystalline microstructure. The goal was to produce materials featuring the
granular giant magnetoresistance effect, requiring interfaces between ferro-
and nonmagnetic ... | 2208.11895v1 |
2023-03-28 | Electrolyte Coatings for High Adhesion Interfaces in Solid-state Batteries from First Principles | We introduce an adhesion parameter that enables rapid screening for materials
interfaces with high adhesion. This parameter is obtained by density functional
theory calculations of individual single-material slabs rather than slabs
consisting of combinations of two materials, eliminating the need to calculate
all confi... | 2303.16350v1 |
2014-12-12 | High-T_c superconductivity in ultrathin Bi_2Sr_2CaCu_2O_8+x down to halfunit-cell thickness by protection with graphene | High-T_c superconductors confined to two dimension exhibit novel physical
phenomena, such as superconductor-insulator transition. In the
Bi_2Sr_2CaCu_2O_8+x (Bi2212) model system, despite extensive studies, the
intrinsic superconducting properties at the thinness limit have been difficult
to determine. Here we report a... | 1412.3896v1 |
2019-08-18 | Maximizing the spin-orbit torque efficiency of Pt/Ti multilayers by optimization of the tradeoff between the intrinsic spin Hall conductivity and carrier lifetime | We report a comprehensive study of the maximization of the spin Hall ratio
({\theta}SH) in Pt thin films by the insertion of sub-monolayer layers of Ti to
decrease carrier lifetime while minimizing the concurrent reduction in the spin
Hall conductivity. We establish that the intrinsic spin Hall conductivity of
Pt, whil... | 1908.06528v1 |
2019-10-22 | Transverse Beam Stability with Low-Impedance Collimators in the High Luminosity Large Hadron Collider: Status and Challenges | The High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) will double
its beam intensity for the needs of High Energy Physics frontier. In order to
ensure coherent stability until the beams are put in collision, the transverse
impedance has to be reduced. As the major portion of the ring impedance is
supplied b... | 1910.09974v2 |
2020-11-05 | Preparation of the AlTiNiCuCox system high-entropy alloys and structural analysis | This study aimed to explore and develop a new material with high
cost-effectiveness, excellent strength, light weight, high hardness, great wear
resistance, corrosion resistance, and favorable oxidation resistance.
Structural analysis suggested that, with the change in Co addition amount, the
surface morphology and str... | 2011.02799v1 |
2022-01-19 | Secondary Phase Limited Metal-Insulator Phase Transition in Chromium Nitride Thin Films | Chromium nitride (CrN) is a well-known hard coating material that has found
applications in abrasion and wear-resistant cutting tools, bearings, and
tribology applications due to its high hardness, high-temperature stability,
and corrosion-resistant properties. In recent years, CrN has also attracted
significant intere... | 2201.07442v1 |
2022-01-22 | High-throughput calculations combining machine learning to investigate the corrosion properties of binary Mg alloys | Magnesium (Mg) alloys have shown great prospects as both structural and
biomedical materials, while poor corrosion resistance limits their further
application. In this work, to avoid the time-consuming and laborious experiment
trial, a high-throughput computational strategy based on first-principles
calculations is des... | 2201.09059v1 |
2019-10-17 | High electrical conductivity in the epitaxial polar metals LaAuGe and LaPtSb | Polar metals are an intriguing class of materials that simultaneously host
free carriers and polar structural distortions. Despite the name "polar metal,"
however, most well-studied polar metals are poor electrical conductors. Here,
we demonstrate the molecular beam epitaxial (MBE) growth of LaPtSb and LaAuGe,
two pola... | 1910.07685v1 |
2024-02-06 | Physics-based Modeling of Pulse and Relaxation of High-rate Li/CF$_{x}$-SVO batteries in Implantable Medical Devices | We present a physics-based model that accurately predicts the performance of
Medtronic's implantable medical device battery lithium/carbon monofluoride
(CF$_x$) - silver vanadium oxide (SVO) under both low-rate background
monitoring and high-rate pulsing currents. The distinct properties of multiple
active materials ar... | 2402.03677v1 |
2020-04-25 | Reconciliation of experiments and theory on transport properties of iron and the geodynamo | The amount of heat transport from the core, which constrains the dynamics and
thermal evolution of the region, depends on the transport properties of iron.
Ohta et al.(2016) and Konopkova et al.(2016) measured electrical resistivity
and thermal conductivity of iron, respectively, in laser-heated diamond anvil
cells (DA... | 2004.12035v1 |
2020-08-26 | Understanding the role of Ca segregation on thermal stability, electrical resistivity and mechanical strength of nanostructured aluminum | Achieving a combination of high mechanical strength and high electrical
conductivity in low-weight Al alloys requires a full understanding of the
relationships between nanoscaled features and physical properties. Grain
boundary strengthening through grain size reduction offers some interesting
possibilities but is limi... | 2008.11405v1 |
2021-02-15 | High-entropy van der Waals materials formed from mixed metal dichalcogenides, halides and phosphorus trisulfides | The charge, spin, and composition degrees of freedom in high-entropy alloy
endow it with tunable valence and spin states, infinite combinations and
excellent mechanical performance. Meanwhile, the stacking, interlayer, and
angle degrees of freedom in van der Waals material bring it with exceptional
features and technol... | 2102.07493v2 |
2014-12-01 | Conventional superconductivity at 190 K at high pressures | The highest critical temperature of superconductivity Tc has been achieved in
cuprates: 133 K at ambient pressure and 164 K at high pressures. As the nature
of superconductivity in these materials is still not disclosed, the prospects
for a higher Tc are not clear. In contrast the Bardeen-Cooper-Schrieffer (BCS)
theory... | 1412.0460v1 |
2021-04-12 | High-speed ionic synaptic memory based on two-dimensional titanium carbide MXene | Synaptic devices with linear high-speed switching can accelerate learning in
artificial neural networks (ANNs) embodied in hardware. Conventional resistive
memories however suffer from high write noise and asymmetric conductance
tuning, preventing parallel programming of ANN arrays as needed to surpass
conventional com... | 2104.05396v4 |
2022-12-06 | Novel superhard structures of high-pressure C-N compounds | Through machine learning force field accelerated structure search combined
with first-principles calculations, we have studied the structures of new C-N
compounds with different stoichiometric ratios, and found twelve new superhard
C-N compounds, the energies of these structures are similar to c-C3N4 , which
is possibl... | 2212.03009v3 |
2004-03-19 | Influence of intermartensitic transitions on transport properties of Ni2.16Mn0.84Ga alloy | Magnetic, transport, and x-ray diffraction measurements of ferromagnetic
shape memory alloy Ni$_{2.16}$Mn$_{0.84}$Ga revealed that this alloy undergoes
an intermartensitic transition upon cooling, whereas no such a transition is
observed upon subsequent heating. The difference in the modulation of the
martensite formin... | 0403495v1 |
2004-10-10 | Ultrathin epitaxial graphite: 2D electron gas properties and a route toward graphene-based nanoelectronics | We have produced ultrathin epitaxial graphite films which show remarkable 2D
electron gas (2DEG) behavior. The films, composed of typically 3 graphene
sheets, were grown by thermal decomposition on the (0001) surface of 6H-SiC,
and characterized by surface-science techniques. The low-temperature
conductance spans a ran... | 0410240v1 |
2005-04-29 | Electromigration in thin tunnel junctions with ferromagnetic/nonmagnetic: nanoconstrictions, local heating, and direct and wind forces | Current Induced Resistance Switching (CIS) was recently observed in thin
tunnel junctions with ferromagnetic (FM) electrodes \emph{i.e} FM/I/FM. This
effect was attributed to electromigration of metallic atoms in
nanoconstrictions in the insulating barrier (I). Here we study how the CIS
effect is influenced by a thin n... | 0504772v6 |
2007-02-05 | Effect of Ir substitution in the ferromagnetic superconductor RuSr2GdCu2O8 | A detailed study of the effect caused by the partial substitution of Ru by Ir
on the magnetic and superconducting properties of the ruthenocuprate
Ru(1-x)Ir(x)Sr2GdCu2o8; 0 <= x <= 0.10; is presented. The combined experimental
results of structural, electrical, and magnetic measurements indicate that Ir
substitutes Ru ... | 0702078v1 |
1997-04-04 | Radiation damage to neutron and proton irradiated GaAs particle detectors | The radiation damage in 200 um thick Schottky diodes made on semi-insulating
(SI) undoped GaAs Liquid Encapsulated Czochralski (LEC) bulk material with
resistivities between 0.4 and 8.9*10E7 Ohm*cm were studied using
alpha-spectroscopy, signal response to minimum ionising particles (MIP), I-V
and CV-measurements. The r... | 9704002v1 |
2003-04-10 | Students' Understanding of Direct Current Resistive Electrical Circuits | Research has shown that both high school and university students' reasoning
patterns regarding direct current resistive electric circuits often differ from
the currently accepted explanations. At present, there are no standard
diagnostic examinations in electric circuits. Two versions of a diagnostic
instrument called ... | 0304040v2 |
2013-05-15 | Structural ordering driven anisotropic magnetoresistance, anomalous Hall resistance and its topological overtones in full-Heusler Co2MnSi thin films | We report the evolution of crystallographic structure, magnetic ordering and
electronic transport in thin films of full-Heusler alloy Co$_2$MnSi deposited
on (001) MgO with annealing temperatures ($T_A$). By increasing the $T_A$ from
300$^\circ$C to 600$^\circ$C, the film goes from a disordered nanocrystalline
phase to... | 1305.3453v1 |
2013-05-21 | Observation of even denominator fractional quantum Hall effect in suspended bilayer graphene | We investigate low-temperature magneto-transport in recently developed,
high-quality multi-terminal suspended bilayer graphene devices, enabling the
independent measurement of the longitudinal and transverse resistance. We
observe clear signatures of the fractional quantum Hall effect, with different
states that are ei... | 1305.4761v3 |
2014-11-07 | Resistance noise at the metal-insulator transition in thermochromic VO2 films | Thermochromic VO2 films were prepared by reactive DC magnetron sputtering
onto heated sapphire substrates and were used to make 100-nm-thick samples that
were 10 {\mu}m wide and 100 micron long. The resistance of these samples
changed by a factor of about 2000 in the 50 < Ts < 70 C range of temperature Ts
around the "c... | 1411.2026v1 |
2015-02-18 | Anomalous electrical conductivity in rapidly crystallized Cu${}_{50-x}$Zr${}_{x}$ (x = 50 - 66.6) alloys | Cu${}_{50-x}$Zr${}_{x}$ (x = 50, 54, 60 and 66.6) polycrystalline alloys were
prepared by arc-melting. The crystal structure of the ingots has been examined
by X-ray diffraction. Non-equilibrium martensitic phases with monoclinic
structure were detected in all the alloys except Cu${}_{33.4}$Zr${}_{66.6}$.
Temperature d... | 1502.05297v1 |
2016-05-24 | Thermoelectric transport in the layered Ca$_3$Co$_{4-x}$Rh$_x$O$_9$ single crystals | We have examined an isovalent Rh substitution effect on the transport
properties of the thermoelectric oxide Ca$_3$Co$_{4}$O$_9$ using
single-crystalline form. With increasing Rh content $x$, both the electrical
resistivity and the Seebeck coefficient change systematically up to $x=0.6$ for
Ca$_3$Co$_{4-x}$Rh$_{x}$O$_9... | 1605.07682v1 |
2017-10-25 | Engineering physics of superconducting hot-electron bolometer mixers | Superconducting hot-electron bolometers are presently the best performing
mixing devices for the frequency range beyond 1.2 THz, where good quality
superconductor-insulator-superconductor (SIS) devices do not exist. Their
physical appearance is very simple: an antenna consisting of a normal metal,
sometimes a normal me... | 1710.09136v1 |
2018-02-13 | Multiple-Modes Scanning Probe Microscopy Characterization of Copper doped Zinc Oxide (ZnO:Cu) Thin Films | This paper presents multiple-modes Scanning Probe Microscopy (SPM) studies on
characterize resistance switching (RS), polarization rotation (PO) and surface
potential changes in copper doped ZnO (ZnO:Cu) thin films. The bipolar RS
behavior is confirmed by conductive Atomic Force Microscopy (c-AFM). The PO
with almost 1... | 1802.04494v1 |
2019-02-11 | Electrical percolation in metal wire network based strain sensors | Metal wire networks rely on percolation paths for electrical conduction, and
by suitably introducing break-make junctions on a flexible platform, a network
can be made to serve as a resistive strain sensor. Several experimental designs
have been proposed using networks made of silver nanowires, carbon nanotubes
and met... | 1902.03746v1 |
2019-12-16 | Electrical Characterization of CIGS Thin Film Solar Cells by Two and Four-Wires Probe Technique | The characterization of thin film solar cells is of huge importance for
obtaining high open circuit voltage and low recombination rates from the
interfaces or within the bulk of the main materials. Among the many electrical
characterization techniques, the two and four wire probe using the Cascade
instrument is of inte... | 2002.07391v1 |
2020-03-31 | Design and Simulation of Memristor-Based Artificial Neural Network for Bidirectional Adaptive Neural Interface | This article proposes a general approach to the simulation and design of a
multilayer perceptron (MLP) network on the basis of cross-bar arrays of
metal-oxide memristive devices. The proposed approach uses the ANNM theory,
tolerance theory, simulation methodology and experiment design. The tolerances
analysis and synth... | 2004.00154v1 |
2017-04-29 | Wear-resistant thin films of MRI-230D-Mg alloy using plasma-driven electrolytic oxidation | Wear resistant coatings were produced on a permanent mould cast MRI 230D Mg
alloy by (a) PEO in silicate based electrolyte, (b) PEO in phosphate based
electrolyte, (c) hybrid coatings of silicate PEO followed by laser surface
alloying (LSA) with Al and Al2O3, and (d) hybrid coatings of phosphate PEO
followed by LSA wit... | 1705.00116v1 |
2018-08-01 | Effect of multiband transport on charge carrier density fluctuations at the LaAlO$_3$/SrTiO$_3$ interface | Multiband transport in superconductors is interesting both from an academic
as well as an application point of view. It has been postulated that interband
scattering can significantly affect the carrier dynamics in these materials. In
this article we present a detailed study of the electrical transport properties
of th... | 1808.00246v1 |
2016-09-06 | Interlayer Transport through a Graphene / Rotated-Boron-Nitride / Graphene Heterostructure | Interlayer electron transport through a graphene / hexagonal boron-nitride
(h-BN) / graphene heterostructure is strongly affected by the misorientation
angle $\theta$ of the h-BN with respect to the graphene layers with different
physical mechanisms governing the transport in different regimes of angle,
Fermi level, an... | 1609.01369v1 |
2018-12-13 | Search for power-efficient wide-range reversible resistance modulation of $VO_2$ single crystals | The abrupt metal insulator transition in $VO_2$ is attracting considerable
interest from both fundamental and applicative angles. We report on DC I-V
characteristics measured on $VO_2$ single crystals in the two-probe
configuration at several ambient temperatures below the insulator-metal
transition. The insulator-mixe... | 1812.05702v1 |
2020-01-28 | Pressure tuning of structural and magnetic transitions in EuAg$_4$As$_2$ | We report temperature dependent measurements of ambient pressure specific
heat, magnetic susceptibility, anisotropic resistivity and thermal expansion as
well as in-plane resistivity under pressure up to 20.8 kbar on single crystals
of EuAg$_4$As$_2$. Based on thermal expansion and in-plane electrical transport
measure... | 2001.10574v1 |
2020-08-07 | Dependable contact related parameter extraction in graphene-metal junctions | The accurate extraction and the reliable, repeatable reduction of graphene -
metal contact resistance (R$_{C}$) are still open issues in graphene
technology. Here, we demonstrate the importance of following clear protocols
when extracting R$_{C}$ using the transfer length method (TLM). We use the
example of back-gated ... | 2008.03218v1 |
2021-05-18 | On the role of boron, carbon and zirconium on hot cracking and creep resistance of additively manufactured polycrystalline superalloys | We investigate the hot cracking susceptibility and creep resistance of three
versions of a nickel-based superalloy with different contents of boron, carbon
and zirconium fabricated by laser powder bed fusion. Crack-free and creep
resistant components are achieved for alloys with boron, carbon and no
zirconium. We then ... | 2105.08307v1 |
2021-07-13 | Reactivity of the Si(100)-2$\times$1-Cl surface with respect to PH$_3$, PCl$_3$, and BCl$_3$: Comparison with PH$_3$ on Si(100)-2$\times$1-H | Despite the interest in a chlorine monolayer on Si(100) as an alternative to
hydrogen resist for atomic-precision doping, little is known about its
interaction with dopant-containing molecules. We used the density functional
theory to evaluate whether a chlorine monolayer on Si(100) is suitable as a
resist for \ce{PH3}... | 2107.06168v1 |
2022-10-18 | In-plane electronic anisotropy revealed by interlayer resistivity measurements on the iron-based superconductor parent compound CaFeAsF | Both cuprates and iron-based superconductors demonstrate nematicity, defined
as the spontaneous breaking of rotational symmetry in electron systems. The
nematic state can play a role in the high-transition-temperature
superconductivity of these compounds. However, the microscopic mechanism
responsible for the transport... | 2210.09533v2 |
2023-11-15 | Transport properties of strongly correlated Fermi systems | In our short review, we consider the transport properties of strongly
correlated Fermi systems like heavy fermion metals and high-$T_c$
superconductors. Their transport properties are defined by strong
inter-particle interaction forming flat bands in these compounds. Indeed, in
contrast to the behavior of the transport... | 2311.08974v1 |
2024-01-26 | First-principles methodology for studying magnetotransport in narrow-gap semiconductors: an application to Zirconium Pentatelluride ZrTe5 | The origin of anomalous resistivity peak and accompanied sign reversal of
Hall resistivity of ZrTe$_5$ has been under debate for a long time. Although
various theoretical models have been proposed to account for these intriguing
transport properties, a systematic study from first principles view is still
lacking. In th... | 2401.15151v1 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.