publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2012-09-26 | Effect of rotation of the polarization of linearly polarized microwaves on the radiation-induced magnetoresistance oscillations | Light-matter coupling is investigated by rotating, by an angle \theta, the
polarization of linearly polarized microwaves with respect to the long-axis of
GaAs/AlGaAs Hall-bar electron devices. At low microwave power, P, experiments
show a strong sinusoidal variation in the diagonal resistance R_{xx} vs. \theta
at the o... | 1209.5808v1 |
2012-09-27 | Interaction effects and transport properties of Pt capped Co nanoparticles | We studied the magnetic and transport properties of Co nanoparticles (NPs)
being capped with varying amounts of Pt. Beside field and temperature dependent
magnetization measurements we performed delta-M measurements to study the
magnetic interactions between the Co NPs. We observe a transition from
demagnetizing toward... | 1209.6255v1 |
2012-10-18 | Possibility of Exciton Mediated Superconductivity in Nano-Sized Sn/Si Core-Shell Clusters: A Process Technology towards Heterogeneous Material in Nano-Scale | We have produced Sn/Si core-shell cluster assemblies by a
plasma-gas-condensation cluster beam deposition apparatus. For the sample with
Si content = 12 at.%, the temperature dependence of electrical resistivity
exhibits a metallic behavior above 10K and the onset of superconducting
transition below 6.1 K. With decreas... | 1210.5027v1 |
2012-10-29 | Optical Absorption Measurements on Crystalline Silicon at 1550nm | Crystalline silicon is currently being discussed as test-mass material for
future generations of gravitational wave detectors that will operate at
cryogenic temperatures. We present optical absorption measurements on a
large-dimension sample of crystalline silicon at a wavelength of 1550nm at room
temperature. The abso... | 1210.7763v2 |
2012-12-17 | Anomalous Hall Effect in perpendicularly magnetized Mn(_{3-x})Ga thin films | Mn$_{3-x}$Ga (x = 0.1, 0.4, 0.7) thin films on MgO and SrTiO$_3$ substrates
were investigated with magnetic anisotropy perpendicular to the film plane. An
anomalous Hall-effect was observed for the tetragonal distorted lattice in the
crystallographic D0$_{22}$ phase. The Hall resistivity $\varrho_{xy}$ was
measured in ... | 1212.4019v1 |
2013-03-07 | Thickness dependence of the degree of spin polarization of the electrical current in permalloy thin films | Spin-polarized electrical transport is investigated in $
Al_{2}O_{3}/Ni_{80}Fe_{20}/Al_{2}O_{3}$ thin films for permalloy thickness
between 6 and 20nm. The degree of spin-polarization of the current flowing in
the plane of the film is measured through the current induced spin wave Doppler
shift. We find that it decreas... | 1303.1692v1 |
2013-06-12 | Electron transport across a metal-organic interface | We simulate the electron transport across the Au(111)-pentacene interface
using non-equilibrium Green's functions and density-functional theory
(NEGF-DFT), and calculate the bias-dependent electron transmission. We find
that the electrical contact resistance is dominated by the formation of a
Schottky barrier at the in... | 1306.2731v1 |
2013-06-26 | A singularly perturbed non-ideal transmission problem and application to the effective conductivity of a periodic composite | We investigate the effective thermal conductivity of a two-phase composite
with thermal resistance at the interface. The composite is obtained by
introducing into an infinite homogeneous matrix a periodic set of inclusions of
a different material. The diameter of each inclusion is assumed to be
proportional to a positi... | 1306.6176v1 |
2013-07-12 | Observation of Longitudinal Spin Seebeck Effect with Various Transition Metal Films | We evaluated the thermoelectric properties of longitudinal spin Seebeck
devices by using ten different transition metals (TMs). Both the intensity and
sign of spin Seebeck coefficients were noticeably dependent on the degree of
the inverse spin Hall effect and the resistivity of each TM film. Spin
dependent behaviors w... | 1307.3320v1 |
2013-08-08 | Planar Superconducting Whispering Gallery Mode Resonators | We introduce a microwave circuit architecture for quantum signal processing
combining design principles borrowed from high-Q 3D resonators in the quantum
regime and from planar structures fabricated with standard lithography. The
resulting '2.5D' whispering-gallery mode resonators store 98% of their energy
in vacuum. W... | 1308.1743v2 |
2013-09-02 | Model of the Electrostatics and Tunneling Current of Metal-Graphene Junctions and Metal-Insulator-Graphene Heterostructures | In this paper we present a comprehensive model for the tunneling current of
the metal-insulator-graphene heterostructure, based on the Bardeen Transfer
Hamiltonian method, of the metal-insulator-graphene heterostructure. As a
particular case we have studied the metal-graphene junction, unveiling the role
played by diff... | 1309.0390v1 |
2013-09-19 | Giant electroresistance and tunable magnetoelectricity in a multiferroic junction | First-principles density functional calculations show that the
$\textrm{SrRuO}_{3}/\textrm{PbTiO}_{3}/\textrm{SrRuO}_{3}$ multiferroic
junction with asymmetric (RuO$_{2}$/PbO and TiO$_{2}$/SrO) interfaces has a
large ferroelectric depolarizing field, whose switching changes the interface
transmission probabilities for ... | 1309.4883v2 |
2013-11-28 | Gate controlled spin pumping at a quantum spin Hall edge | We propose a four-terminal device designed to manipulate by all electrical
means the spin of a magnetic adatom positioned at the edge of a quantum spin
Hall insulator. We show that an electrical gate, able to tune the interface
resistance between a quantum spin Hall insulator and the source and drain
electrodes, can sw... | 1311.7329v1 |
2014-03-02 | Spin disorder in an Ising honeycomb chain cobaltate | We report on a member of the spin-disordered honeycomb lattice
antiferromagnet in a quasi-one-dimensional cobaltate Ba_3Co_2O_6(CO_3)_0.7.
Resistivity exhibits as semimetallic along the face-sharing CoO6 chains.
Magnetic susceptibility shows strongly anisotropic Ising-spin character with
the easy axis along the chain d... | 1403.0208v1 |
2014-03-18 | Quantum longitudinal and Hall transport at the LaAlO3/SrTiO3 interface at low electron densities | We examined the magneto-transport behavior of electrons confined at the
conducting LaAlO3/SrTiO3 interface in the low sheet carrier density regime. We
observed well resolved Shubnikov-de Haas quantum oscillations in the
longitudinal resistance, and a plateau-like structure in the Hall conductivity.
The Landau indices o... | 1403.4343v1 |
2014-03-18 | 31P NMR Investigation of the Superconductor LiFeP (Tc = 5 K) | We investigate the static and dynamic spin susceptibility of the 111 type
Fe-based superconductor LiFeP with Tc ~ 5 K through the measurement of Knight
shift 31K and the spin-lattice relaxation rate 1/T1 at 31P site by nuclear
magnetic resonance. The constant 31K, small magnitudes of 1/T1T, along with the
resistivity r... | 1403.4458v1 |
2014-03-21 | Field induced large magnetocaloric effect and magnetoresistance in ErNiSi | Large magnetocaloric effect (MCE) and magnetoresistance (MR) together with
negligible hysteresis loss has been observed in ErNiSi compound, which
undergoes metamagnetic transition at low temperatures. Magnetization, heat
capacity and resistivity measurements confirm the metamagnetic transition. The
maximum value of iso... | 1403.5396v1 |
2014-06-17 | Phenomenological Modeling of Memristive Devices | We present a computationally inexpensive yet accurate phenomenological model
of memristive behavior in titanium dioxide devices by fitting experimental
data. By design, the model predicts most accurately I-V relation at small
non-disturbing electrical stresses, which is often the most critical range of
operation for ci... | 1406.4219v2 |
2014-12-21 | A brief introduction to giant magnetoresistance | Giant magnetoresistance (GMR) is a quantum mechanical magnetoresistance
effect observed in thin film structures composed of alternating ferromagnetic
and nonmagnetic layers. The effect manifests itself as a significant decrease
(typically 10-80%) in electrical resistance in the presence of a magnetic
field. The effect ... | 1412.7691v1 |
2015-02-10 | Preventing Buckling of Slender Cylindrical Structures by Internal Viscous Flows | Viscous flows within an elastic structure apply stress on the solid-liquid
interface. The stress-field created by the viscous flow can be utilized to
counter stress created by external forces and thus may be applied as a tool for
delaying the onset of structural failure. To illustrate this concept we study
viscous flow... | 1502.02814v1 |
2015-03-04 | Adiabatic Joule Heating of Copper from 4 K to the Melting Temperature | Considering a copper wire heated by Joule effect and the variation of its
resistivity and specific heat with temperature, we established numerical and
analytical solutions (between 293 and 1356 K for the latter) for the evolution
of its temperature over time. The Temperature vs. Time evolution follows a
Lambertian func... | 1503.01279v1 |
2015-08-17 | Evidence for resonant scattering of electrons by spin fluctuations in $LaNiO_3/LaAlO_3$ heterostructures grown by pulsed laser deposition | We present measurements of resistivity $\rho$ in highly oriented $LaNiO_3$
films grown on $LaAlO_3$ substrates by using a pulsed laser deposition
technique. The experimental data are found to follow a universal $\rho (T)
\propto T^{3/2}$ dependence for the entire temperature interval ($20K<T<300K$).
The observed behavi... | 1508.04063v1 |
2015-09-14 | Multi-Fields Modulation of Physical Properties of Oxide Thin Films | Oxide thin films exhibit versatile physical properties such as magnetism,
ferroelectricity, piezoelectricity, metal-insulator transition (MIT),
multiferroicity, colossal magnetoresistivity, switchable resistivity, etc. More
importantly, the exhibited multifunctionality could be tuned by various
external fields, which h... | 1509.03939v1 |
2015-11-24 | Structural Properties and Thermodynamics of Hafnium sub-oxides in RRAM | We study the structural and electronic properties of various hafnium
sub-oxides HfzO from z = 9 to z = 0.5, by ab initio simulation using Density
Functional Theory. The stability of these sub-oxides is studied against
monoclinic HfO2. The progressive oxidation of a given HfzO is also envisaged
toward stoichiometric HfO... | 1511.07665v1 |
2016-01-01 | Reverse degradation of nickel graphene junction by hydrogen annealing | Metal contacts are fundamental building components for graphene based
electronic devices and their properties are greatly influenced by interface
quality during device fabrication, leading to resistance variation. Here we
show that nickel graphene junction degrades after air exposure, due to
interfacial oxidation, thus... | 1601.00109v2 |
2016-01-06 | Electronic transport through a silicene-based zigzag and armchair junction | Using density functional theory and non-equilibrium Greens function
technique, we performed theoretical investigations on the transport properties
of several ZAZ SiNRs junctions,a similar kind of silicene molecules junction
combined by zigzag and armchair silicene nanoribbons. It is found that the
differential conducta... | 1601.01066v1 |
2016-01-18 | Investigation of ITO based liquid sensor for ammonia hydroxide detection | We proposed an Indium Tin Oxide (ITO) sensor for detecting the NH4OH in
seawater and carried out a series of experiments to investigate the feasibility
of it as a hazardous and noxious substance (HNS) sensor. The ITO layer revealed
a distinct resistance change ({\delta}R) which is linearly correlated with the
NH4OH con... | 1601.04446v1 |
2016-01-18 | Low temperature phase diagram of hydrogen at pressures up to 380 GPa. A possible metallic phase at 360 GPa and 200 K | Two new phases of hydrogen have been discovered at room temperature in Ref.1:
phase IV above 220 GPa and phase V above ~270 GPa. In the present work we have
found a new phase VI at P~360 GPa and T<200 K. This phase is likely metallic as
follows from the featureless Raman spectra, a strong drop in resistance, and
absenc... | 1601.04479v1 |
2016-05-17 | Insulator to metal transition of WO3 epitaxial films induced by electrochemical Li-ion intercalation | We investigated systematic evolutions of structural and electronic properties
of LixWO3 films, induced by Li-ion electrochemical reactions.
Chronoamperometric Li-ion intercalation could control the amount of Li content
up to x ~ 0.5. The resistivity abruptly decreased with increasing x and the
films underwent an insula... | 1605.04997v1 |
2016-07-19 | Specific Heat and Electrical Transport Properties of Sn0.8Ag0.2Te Superconductor | Sn0.8Ag0.2Te is a new superconductor with Tc ~ 2.4 K. The superconducting
properties of Sn0.8Ag0.2Te have been investigated by specific heat measurements
under magnetic fields. Bulk nature of superconductivity was confirmed from the
amplitude of the specific heat jump at the superconducting transition, and the
amplitud... | 1607.05474v1 |
2016-10-21 | Electromotive forces generated in 3d-transition ferromagnetic metal films themselves under their ferromagnetic resonance | We report the electromotive force (EMF) properties generated in 3d-transition
ferromagnetic metal (FM = Fe, Co, and Ni80Fe20) films themselves under their
ferromagnetic resonance (FMR). For Fe and Co films, the EMF due to the
anomalous-Hall effect is dominantly generated under their FMR. Meanwhile, for a
Ni80Fe20 film,... | 1610.06695v2 |
2016-11-27 | Probing Electron Spin Resonance in Monolayer Graphene | The precise value of the $g$-factor in graphene is of fundamental interest
for all spin-related properties and their application. We investigate monolayer
graphene on a Si/SiO2 substrate by resistively detected electron spin resonance
(ESR). Surprisingly, the magnetic moment and corresponding g-factor of
1.952+/-0.002 ... | 1611.08782v1 |
2016-12-14 | Dielectric geometric phase optical elements from femtosecond direct laser writing | We propose to use femtosecond direct laser writing technique to realize
dielectric optical elements from photo-resist materials for the generation of
structured light from purely geometrical phase transformations. This is
illustrated by the fabrication and characterization of spin-to-orbital optical
angular momentum co... | 1612.04487v1 |
2016-12-06 | Development of an Experimental Setup to Analyze Carbon/Epoxy Composite Subjected to Current Impulses | In this paper, variation in electrical properties of CFRP caused by
relatively low magnitude current impulses discharged through CFRP coupons are
reported, and internal changes of the composite, due to current impulses, are
studied. Based on electrical resistance measurements caused by these currents,
property changes ... | 1612.07204v1 |
2016-12-28 | Tomonaga-Luttinger liquid and localization in Weyl semimetals | We study both noncentrosymmetric and time-reversal breaking Weyl semimetal
systems under a strong magnetic field with the Coulomb interaction. The
three-dimensional bulk system is reduced to many mutually interacting
quasi-one-dimensional wires. Each strongly correlated wire can be approached
within the Tomonaga-Luttin... | 1612.08905v2 |
2018-03-22 | Vortex liquid phase in the p-wave ferromagnetic superconductor UCoGe | The upper critical field for field along the b-axis of the p-wave
ferromagnetic superconductor UCoGe has a particular S-shape, akin to the
re-entrant superconducting phase of URhGe. To explore the evolution of the
superconducting phase under this transverse magnetic field, we report the
thermal conductivity and resisti... | 1803.08468v3 |
2018-04-20 | Redox reaction enhanced Schottky contact at a \LNO{}(001)/Al interface | Emergent phenomena at interfaces between oxides and metals can appear due to
charge transfer and mass transport that modify the bulk properties. By coating
the metallic oxide LaNiO$_3$ by aluminium, we fabricated a junction exhibiting
a diode-like behaviour. At the equilibrium, the interface is insulating. The
metallic... | 1804.07574v1 |
2018-06-13 | Vortex spin-valve on a topological insulator | Spin-valve structures are usually associated with the ability to modify the
resistance of electrical currents. We here demonstrate a profoundly different
effect of a spin-valve. In combination with a topological insulator and
superconducting materials, we show that a spin-valve can be used to toggle
quantum vortices in... | 1806.05184v1 |
2018-09-25 | Anomalous Transport Behavior in Quantum Magnets | Transport behavior characterized by a low-temperature electrical resistivity
that displays a power-law behavior $\rho(T\to 0) \propto T^s$ with an exponent
$s<2$, is commonly observed in magnetic materials in both the magnetic and
nonmagnetic phases. We give a pedagogical overview of this phenomenon that
summarizes bot... | 1809.09675v1 |
2018-09-28 | Magneto-dielectric and Magneto-resistive in the Mixed Spinel MgFe2O4 | The mixed spinel, MgFe2O4 has been synthesized by ball-milling assisted
sintering method. X-ray diffraction study confirms formation of cubic MgFe2O4
and the lattice parameter values calculated are a = b = c = 8.369(3) {\AA}.
Vibrating sample magnetometer measurements at room temperature shows a soft
ferrimagnetic natu... | 1809.10968v1 |
2014-08-21 | Simulation of Schottky-Barrier Phosphorene Transistors | Schottky barrier field-effect transistors (SBFETs) based on few and mono
layer phosphorene are simulated by the non-equilibrium Green's function
formalism. It is shown that scaling down the gate oxide thickness results in
pronounced ambipolar I-V characteristics and significant increase of the
minimal leakage current. ... | 1408.5013v1 |
2004-06-10 | Magnetic and orbital blocking in Ni nanocontacts | We address the fundamental question of whether magneto-resistance (MR) of
atomic-sized contacts of Nickel is very large because of the formation of a
domain wall (DW) at the neck. Using {\em ab initio} transport calculations we
find that, as in the case of non-magnetic electrodes, transport in Ni
nanocontacts depends v... | 0406249v2 |
2004-06-25 | Strong electron correlation effects in non-volatile electronic memory devices | We investigate hysteresis effects in a model for non-volatile memory devices.
Two mechanisms are found to produce hysteresis effects qualitatively similar to
those often experimentally observed in heterostructures of transition metal
oxides. One of them is a novel switching effect based on a metal-insulator
transition ... | 0406646v1 |
2011-07-20 | Effect of pressure on the electronic structure of hcp Titanium | The effect of pressure on the hexagonal close-packed structure of titanium is
investigated. The lattice parameters of the equilibrium structure were
determined in terms of the Gibbs free energy using the Epitaxial Bain Path
method. When this process was repeated for several pressures, the effect of
pressure on the latt... | 1107.3948v1 |
2014-10-03 | Enhanced spin-orbit coupling and charge carrier density suppression in LaAl1-xCrxO3/SrTiO3 heterointerfaces | We report a gradual suppression of the two-dimensional electron gas (2DEG) at
the LaAlO3/SrTiO3 interface on substitution of chromium at the Al sites. The
sheet carrier density at the interface (ns) drops monotonically from 2.2x10(14)
cm-2 to 2.5x10(13) cm-2 on replacing nearly 60 percent of Al sites by Cr and
the shee... | 1410.0876v1 |
2014-10-05 | Planar Hall effect in Y3Fe5O12(YIG)/IrMn films | The planar Hall effect of IrMn on an yttrium iron garnet (YIG = Y3Fe5O12) was
measured in the magnetic field rotating in the film plane. The magnetic field
angle dependence of planar Hall resistance (PHR) has been observed in YIG/IrMn
bilayer at different temperatures, while the GGG/IrMn (GGG= Gd3Ga5O12) shows
constant... | 1410.1112v1 |
2014-11-08 | Correlations among magnetic, magnetocaloric and magneto-transport properties in HoNiSi | Magnetic, magnetocaloric and magneto-transport properties of polycrystalline
HoNiSi have been studied. The compound crystallizes in orthorhombic crystal
structure and orders antiferromagnetically at TN=4.6 K. Magnetization isotherms
show curvature at small fields, revealing a field induced metamagnetic
transition. Magn... | 1411.2135v1 |
2017-01-29 | Yielding Transitions and Grain-Size Effects in Dislocation Theory | The statistical-thermodynamic dislocation theory developed in previous papers
is used here in an analysis of yielding transitions and grain-size effects in
polycrystalline solids. Calculations are based on the 1995 experimental results
of Meyers et al. for polycrystalline copper under strain-hardening conditions.
The m... | 1701.08336v1 |
2017-11-08 | Rattler-induced aging dynamics in jammed granular systems | Granular materials jam when developing a network of contact forces able to
resist the applied stresses. Through numerical simulations of the dynamics of
the jamming process, we show that the jamming transition does not occur when
the kinetic energy vanishes. Rather, as the system jams, the kinetic energy
becomes domina... | 1711.03045v1 |
2017-12-04 | A two-channel model for Spin-relaxation noise | We develop a two-channel resistor model for simulating spin transport with
general applicability. Using this model, for the case of graphene as a
prototypical material, we calculate the spin signal consistent with
experimental values. Using the same model we also simulate the charge and spin-
dependent 1/f noise, both ... | 1712.01414v1 |
2018-10-17 | Interface enhanced magnetic anisotropy in Pt/EuO films | We report proximity effects of spin-orbit coupling in EuO$_{1-x}$ films
capped with a Pt overlayer. Transport measurements suggest that current flows
along a conducting channel at the interface between the Pt and EuO. The
temperature dependence of the resistivity picks up the critical behaviors of
EuO, i.e., the metal-... | 1810.07336v1 |
2018-10-18 | Superconductivity of platinum hydride | We report the ac magnetic susceptibility, electrical resistance, and X-ray
diffraction measurements of platinum hydride (PtHx) in diamond anvil cells,
which reveal its superconducting transition. At 32 GPa, when PtHx is in a
P63/mmc structure, PtHx exhibits superconducting transition at 6.7 K and
superconducting transi... | 1810.08191v1 |
2018-10-23 | Perfect absorption of water waves by linear or nonlinear critical coupling | We report on experiments of perfect absorption for surface gravity waves
impinging a wall structured by a subwavelength resonator. By tuning the
geometry of the resonator, a balance is achieved between the radiation damping
and the intrinsic viscous damping, resulting in perfect absorption by critical
coupling. Besides... | 1810.09884v1 |
2018-10-24 | On the effect of Ti on Oxidation Behaviour of a Polycrystalline Nickel-based Superalloy | Titanium is commonly added to nickel superalloys but has a well-documented
detrimental effect on oxidation resistance. The present work constitutes the
first atomistic-scale quantitative measurements of grain boundary and bulk
compositions in the oxide scale of a current generation polycrystalline nickel
superalloy per... | 1810.10444v1 |
2018-10-31 | Domain formation and self-sustained oscillations in quantum cascade lasers | We study oscillations in quantum cascade lasers due to traveling electric
field domains, which are observed both in simulations and experiments. These
oscillations occur in a range of negative differential resistance and we
clarify the condition determining whether the boundary between domains of
different electric fie... | 1810.13207v2 |
2019-05-01 | Degenerately Doped Transition Metal Dichalcogenides as Ohmic Homojunction Contacts to Transition Metal Dichalcogenide Semiconductors | In search of an improved strategy to form low resistance contacts to MoS2 and
related semiconducting transition metal dichalcogenides, we use ab initio
density functional electronic structure calculations in order to determine the
equilibrium geometry and electronic structure of MoO3/MoS2 and MoO2/MoS2
bilayers. Our re... | 1905.00285v1 |
2019-07-08 | Effect of elasto-plastic compatibility of grains on the void initiation criteria in low carbon steel | The present study evidences the role of ferrite grain size distributions on
the occurrence of void initiation in a low carbon steel. Various
thermomechanical treatments were done to create ultrafine, bimodal and coarse
range of ferrite grain distributions. A two parameter characterization of
probable void initiation si... | 1907.03703v1 |
2020-09-26 | Heat vortexes of ballistic, diffusive and hydrodynamic phonon transport in two-dimensional materials | In this work, the heat vortexes in two-dimensional porous or ribbon
structures are investigated based on the phonon Boltzmann transport equation
(BTE) under the Callaway model. First, the separate thermal effects of normal
(N) scattering and resistive (R) scattering are investigated with
frequency-independent assumptio... | 2009.12587v1 |
2007-10-17 | Input Impedance, Nanocircuit Loading, and Radiation Tuning of Optical Nanoantennas | Here we explore the radiation features of optical nanoantennas, analyzing the
concepts of input impedance, optical radiation resistance, impedance matching
and loading of plasmonic nanodipoles. We discuss how the concept of antenna
impedance may be applied to optical frequencies, and how its quantity may be
properly de... | 0710.3411v1 |
2012-01-06 | Bi(111) thin film with insulating interior but metallic surfaces | The electrical conductance of molecular beam epitaxial Bi on BaF2(111) was
measured as a function of both film thickness (4-540 nm) and temperature (5-300
K). Unlike bulk Bi as a prototype semimetal, the Bi thin films up to 90 nm are
found to be insulating in the interiors but metallic on the surfaces. This
result has ... | 1201.1480v1 |
2012-01-30 | Thermoelectric Properties of Ho-doped Bi1-xSbx | The Seebeck coefficients, electrical resistivities, total thermal
conductivities, and magnetization are reported for temperatures between 5 and
350 K for n-type Bi0.88Sb0.12 nano-composite alloys made by Ho-doping at the 0,
1 and 3% atomic levels. The alloys were prepared using a dc hot-pressing
method, and are shown t... | 1201.6304v1 |
2016-03-21 | Multi-scale modelling of supercapacitors: From molecular simulations to a transmission line model | We perform molecular dynamics simulations of a typical nanoporous-carbon
based supercapacitors. The organic electrolyte consists in
1-ethyl-3-methyl--imidazolium and hexafluorophosphate ions dissolved in
acetonitrile. We simulate systems at equilibrium, for various applied voltages.
This allows us to determine the rele... | 1603.06640v1 |
2017-05-11 | Tunable spin dynamics in chiral soliton lattice | We study dynamics of a chiral soliton lattice (CSL) in a classical
one-dimensional spin chain coupled to the conduction electrons under an
electric field. The CSL has attracted much interest because its period can be
easily controlled by an external magnetic field. We clarify the dependence of
the CSL dynamics on its p... | 1705.04086v2 |
2017-07-05 | Surfing Liquid Metal Droplet on the Same Metal Bath via Electrolyte Interface | We reported a phenomenon that when exerting an electric field gradient across
a liquid metal/electrolyte interface, a droplet of the same liquid metal can
persistently surf on the interface without coalescence. A thin layer of the
intermediate solution, which separates the droplet from direct metallic
contacting and pr... | 1707.01498v1 |
2018-08-04 | Toward a Spectral Theory of Cellular Sheaves | This paper outlines a program in what one might call spectral sheaf theory
--- an extension of spectral graph theory to cellular sheaves. By lifting the
combinatorial graph Laplacian to the Hodge Laplacian on a cellular sheaf of
vector spaces over a regular cell complex, one can relate spectral data to the
sheaf cohomo... | 1808.01513v2 |
2018-08-05 | Role of Doping Ratio on The Sensing Properties of ZnO:SnO2 Thin Films | Thin films of ZnO:SnO2 were deposited on different substrates like glass and
c-Si using spray pyrolysis method .The structures and morphology of the
prepared samples films were cheeked using X-ray diffraction and atomic force
microscope. Gas sensing measurements provided from resistance measurement in
the absent and ex... | 1808.04235v1 |
2018-08-14 | Short commentary on comparing previous claim of RT superconductivity with the data of arXiv:1807.08572, "Evidence for Superconductivity at Ambient Temperature and Pressure in Nanostructures" | I briefly mention a previous claim of room temperature superconductivity (
arXiv:0905.3524) in Ag-based oxide material and compare their results with the
most recent claim of ambient temperature superconductivity in arXiv:1807.08572.
In both cases, an electrical transition to low resistance state and
diamagnetism are o... | 1808.04912v1 |
2019-03-08 | Ti surface modification for biomedical applications | Micro Arc Oxidation (MAO) is an electrochemical approach for the surface
treatment usually applied on so called valve metals such as Al, Mg and Ti. MAO
is usually carried out an aqueous electrolyte, which involves a bath cooling
and leads to the creation of surface contained components originated in the
electrolyte. In... | 1903.03507v1 |
2019-08-22 | Anomalous Hall effect at the spontaneously electron-doped polar surface of PdCoO2 ultrathin films | We revealed the electrical transport through surface ferromagnetic states of
a nonmagnetic metal PdCoO2. Electronic reconstruction at the Pd-terminated
surface of PdCoO2 induces Stoner-like ferromagnetic states, which could lead to
spin-related phenomena among the highly conducting electrons in PdCoO2.
Fabricating a se... | 1908.08173v1 |
2011-04-12 | Upper critical fields and superconducting anisotropy of K0.70Fe1.55Se1.01S0.99 and K0.76Fe1.61Se0.96S1.04 single crystals | We have investigated temperature and angular dependence of resistivity of
K0.70(7)Fe1.55(7)Se1.01(2)S0.99(2) and K0.76(5)Fe1.61(5)Se0.96(4)S1.04(5)
single crystals. The upper critical fields Hc2(T) for both field directions
decrease with the increase in S content. On the other hand, the angle-dependent
magnetoresistivi... | 1104.2318v2 |
2012-03-10 | Large thermal Hall coefficient in bismuth | We present a systematical study of thermal Hall effect on a bismuth single
crystal by measuring resistivity, Hall coefficient, and thermal conductivity
under magnetic field, which shows a large thermal Hall coefficient comparable
to the largest one in a semiconductor HgSe. We discuss that this is mainly due
to a large ... | 1203.2237v1 |
2012-06-12 | Evidence of Josephson-coupled superconducting regions at the interfaces of Highly Oriented Pyrolytic Graphite | Transport properties of a few hundreds of nanometers thick (in the graphene
plane direction) lamellae of highly oriented pyrolytic graphite (HOPG) have
been investigated. Current-Voltage characteristics as well as the temperature
dependence of the voltage at different fixed input currents provide evidence
for Josephson... | 1206.2463v2 |
2012-06-20 | Enhanced thermoelectric properties by Ir doping of PtSb2 with pyrite structure | The effects of Ir doping on the thermoelectric properties of Pt1-xIrxSb2 (x =
0, 0.01, 0.03, and 0.1) with pyrite structure were studied. Measurements of
electrical resistivity rho, Seebeck coefficient S, and thermal conductivity
kappa were conducted. The results showed an abrupt change from semiconducting
behavior wit... | 1206.4482v1 |
2012-06-28 | Electron backscattering from stacking faults in SiC by means of \textit{ab initio} quantum transport calculations | We study coherent backscattering phenomena from single and multiple stacking
faults (SFs) in 3C- and 4H-SiC within density functional theory quantum
transport calculations. We show that SFs give rise to highly dispersive bands
within both the valance and conduction bands that can be distinguished for
their enhanced den... | 1206.6600v1 |
2015-04-28 | Optical loss by surface transfer doping in silicon waveguides | We show that undoped silicon waveguides may suffer of up to 1.8 dB/cm
free-carrier absorption caused by improper surface passivation. To verify the
effects of free-carriers we apply a gate field to the waveguides. Smallest
losses correspond to higher electrical sheet resistances and are generally
obtained with non-zero... | 1504.07613v1 |
2015-07-04 | Evidence for defect-mediated tunneling in hexagonal boron nitride-based junctions | We investigate tunneling in metal-insulator-metal junctions employing few
atomic layers of hexagonal boron nitride (hBN) as the insulating barrier. While
the low-bias tunnel resistance increases nearly exponentially with barrier
thickness, subtle features are seen in the current-voltage curves, indicating
marked influe... | 1507.01058v1 |
2015-07-13 | Defect induced structural and thermoelectric properties of Sb2Te3 alloy | Structural and thermoelectric properties of metallic and semiconducting
Sb2Te3 are reported. X-Ray diffraction and Raman spectroscopy studies reveal
that semiconducting sample have higher defect density. Nature and origin of
possible defects are highlighted. Semiconducting Sb2Te3 hosts larger numbers of
defects, which ... | 1507.03337v1 |
2015-07-22 | Theoretical Study of Coulomb Correlations and Spin-Orbit Coupling in SrIrO3 | Given that energy scales associated with crystal field splitting, spin orbit
coupling and coulomb correlations in iridates are comparable, hence leading to
exotic properties, we investigate the physical properties of orthorhombic
SrIrO3 using density functional theory. Our calculations, however, show that
SrIrO 3 is a ... | 1507.06058v1 |
2016-09-21 | Spin Hall magnetoresistance in antiferromagnet/normal metal bilayers | We predict the emergence of spin Hall magnetoresistance in a magnetic bilayer
composed of a normal metal adjacent to an antiferromagnet. Based on a recently
derived drift-diffusion equation, we show that the resistance of the bilayer
depends on the relative angle between the direction transverse to the current
flow and... | 1609.06521v1 |
2018-12-26 | Probing the Relationship between Anisotropic Magnetoresistance and Magnetization of ferromagnetic films | The anisotropic magnetoresistance (AMR) in thin permalloy strips was
calculated at each steps during magnetization by the finite element method. The
magnetization at equilibrium under different external fields was obtained by
micromagnetic simulations, while the resistance with different magnetization
was obtained by s... | 1812.10294v1 |
2019-03-02 | Reconfigurable Electromagnetic Structures: X-Band and Beyond | Developing reconfigurable millimeter-wave (mmWave) antennas and devices is an
outstanding challenge, with switch technologies being a primary impediment.
Recently, it has been shown that vanadium dioxide (VO2), a thermochromic
material whose resistance changes with temperature, could provide a path
forward in developin... | 1906.03034v1 |
2019-06-18 | The Poole-Frenkel laws and a pathway to multi-valued memory | We revisit the mechanism of Poole-Frenkel non-ohmic conduction in materials
of non-volatile memory. Percolation theory is shown to explain both the Poole
and Frenkel dependencies corresponding to the cases of respectively small and
large samples compared to the correlation radii of their percolation clusters.
The appli... | 1906.07677v2 |
2019-11-06 | Disclosing antiferromagnetism in tetragonal Cr2O3 by electrical measurements | The tetragonal phase of chromium (III) oxide, although unstable in the bulk,
can be synthesized in epitaxial heterostructures. The theoretical investigation
by density functional theory predicts an antiferromagnetic ground state for
this compound. We demonstrate experimentally antiferromagnetism up to 40 K in
ultrathin... | 1911.02596v1 |
2020-06-14 | Ideal memristor based on viscous magnetization dynamics driven by spin torque | We show that ideal memristors - devices whose resistance is proportional to
the charge that flows through them - can be realized using spin torque-driven
viscous magnetization dynamics. The latter can be accomplished in the spin
liquid state of thin-film heterostructures with frustrated exchange, where
memristive respo... | 2006.07996v1 |
2020-08-17 | Surface Conductivity in Antiferromagnetic Semiconductor CrSb$_2$ | The contribution of bulk and surface to the electrical resistance along
crystallographic \textit{b}- and \textit{c}-axes as a function of crystal
thickness gives evidence for a temperature independent surface states in an
antiferromagnetic narrow-gap semiconductor CrSb$_{2}$. ARPES shows a clear
electron-like pocket at... | 2008.07521v1 |
2020-08-23 | Rigidity and fracture of fibrous double networks | Tunable mechanics and fracture resistance are hallmarks of biological tissues
and highly desired in engineered materials. To elucidate the underlying
mechanisms, we study a rigidly percolating double network (DN) made of a stiff
and a flexible network. The DN shows remarkable tunability in mechanical
response when the ... | 2008.09934v1 |
2020-12-23 | Superconducting properties of the non-centrosymmetric Superconductors TaXSi (X= Re, Ru) | We have investigated the ternary noncentrosymmetric superconductors TaXSi
(X=Re, Ru) by magnetization, resistivity, and specific heat measurements. The
samples crystallize in orthorhombic TiFeSi structure having superconducting
transition Tc = 5.32 K and 3.91 K, for TaReSi and TaRuSi respectively. Specific
heat measure... | 2012.12596v1 |
2021-01-30 | Nearly ideal memristive functionality based on viscous magnetization dynamics | We experimentally demonstrate a proof-of-principle implementation of an
almost ideal memristor - a two-terminal circuit element whose resistance is
approximately proportional to the integral of the input signal over time. The
demonstrated device is based on a thin-film ferromagnet/antiferromagnet
bilayer, where magneti... | 2102.00123v1 |
2021-09-18 | Berry curvature induced nonlinear magnetoresistivity in two dimensional systems | The band geometric properties of quantum materials play an elemental role in
the linear and nonlinear transport of electrons. In this paper, we propose that
the interplay of the Berry curvature, the orbital magnetic moment and the
Lorentz force can induce a finite nonlinear resistivity in two dimensional
systems in pre... | 2109.08979v2 |
2021-10-28 | Prandtl-Tietjens intermittency in transitional pipe flows | Pipe flow often traverses a regime where laminar and turbulent flow co-exist.
Prandtl and Tietjens explained this intermittency as a feedback between the
fluctuations of the internal flow resistance and the constant pressure drop
driving the flow. However, because the focus has moved towards studying
intermittency with... | 2110.14983v2 |
2021-11-09 | Lattice structure design optimization under localized linear buckling constraints | An optimization method for the design of multi-lattice structures satisfying
local buckling constraints is proposed in this paper. First, the concept of
free material optimization is introduced to find an optimal elastic tensor
distribution among all feasible elastic continua. By approximating the elastic
tensor under ... | 2111.05294v1 |
2021-11-16 | Have Mysterious Topological Valley Currents Been Observed in Graphene Superlattices? | We provide a critical discussion concerning the claim of topological valley
currents, driven by a global Berry curvature and valley Hall effect proposed in
recent literature. After pointing out a major inconsistency of the theoretical
scenario proposed to interpret giant nonlocal resistance, we discuss various
possible... | 2111.08506v1 |
2021-12-23 | Metal Oxide Nanoparticles and Their Applications: A Report | Herein, we report a brief introduction of metal oxide nanoparticles and their
diverse applications in different scientific and medical fields. This report
will be updated frequently to give a complete review in similar fields of
nanotechnology. In the present version of the report, an introduction to
nanotechnology and... | 2201.04938v1 |
2022-04-14 | Cohesive zone modelling of hydrogen assisted fatigue crack growth: the role of trapping | We investigate the influence of microstructural traps in hydrogen-assisted
fatigue crack growth. To this end, a new formulation combining multi-trap
stress-assisted diffusion, mechanism-based strain gradient plasticity and a
hydrogen- and fatigue-dependent cohesive zone model is presented and
numerically implemented. T... | 2204.07079v1 |
2022-06-10 | Magneto-Seebeck coefficient of Fermi-liquid in three-dimensional Dirac/Weyl semimetal | We investigate dissipationless magneto-Seebeck effect in three-dimensional
Dirac/Weyl semimetal. The Hall resistivity $\rho_{yx}$ and thermoelectric Hall
coefficient $\alpha_{xy}$ exhibit plateaus at the quantum limit, where
electrons occupy only the zeroth Landau level. In this condition, quantum
oscillation in the Se... | 2206.04957v1 |
2022-06-13 | LinReTraCe: The Linear Response Transport Centre | We describe the "Linear Response Transport Centre" (LinReTraCe), a package
for the simulation of transport properties of solids. LinReTraCe captures
quantum (in)coherence effects beyond semi-classical Boltzmann techniques, while
incurring similar numerical costs. The enabling algorithmic innovation is a
semi-analytical... | 2206.06097v2 |
2022-08-03 | Electrical transport and magnetic properties of the triangular-lattice compound Zr$_2$NiP$_2$ | We report the first investigation of the electrical and magnetic properties
of the triangular-lattice compound Zr$_2$NiP$_2$ (space group $P$6$_3$/$mmc$).
The temperature evolution of electrical resistivity follows the
Bloch-Gr\"uneisen-Mott law, and exhibits a typically metallic behavior. No
transition is visible by b... | 2208.01799v1 |
2022-08-09 | Rapid suppression of charge density wave transition in LaSb2 under pressure | LaSb2 is found to be an example of an exceptionally pressure sensitive and
tunable, two dimensional compound. In-plane electrical resistivity of LaSb2
under pressure up to 12.9 kbar was measured in zero and applied magnetic field.
The charge density wave transition (observed at ~ 350 K at ambient pressure) is
completel... | 2208.04997v1 |
2023-03-12 | Pressure-induced color change in the lutetium dihydride LuH2 | The lutetium dihydride LuH2 is stable at ambient conditions. Here we show
that its color undergoes sequential changes from dark blue at ambient pressure
to pink at ~2.2 GPa and then to bright red at ~4 GPa upon compression in a
diamond anvil cell. Such a pressure-induced color change in LuH2 is reversible
and it is ver... | 2303.06718v1 |
2023-06-27 | Enhancing interfacial thermal conductance of amorphous interface by optimized interfacial mass distribution | Interfacial thermal resistance arises challenges for the thermal management
as the modern semiconductors are miniatured to nanoscale. Previous studies
found that graded mass distribution in interface can maximumly enhance the
interfacial thermal conductance of crystalline interface, however, whether this
strategy is ef... | 2306.15254v1 |
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