publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2022-04-01 | Magnetic Kagome Superconductor CeRu$_2$ | Materials with a kagome lattice provide a platform for searching for new
electronic phases and investigating the interplay between correlation and
topology. Various probes have recently shown that the kagome lattice can host
diverse quantum phases with intertwined orders, including charge density wave
states, bond dens... | 2204.00553v2 |
2004-12-06 | Resistivity and Thermoelectric power of NaxCoO2 (x =1.0, 0.7 and 0.6) system | Results of thermo-electric power (S) and electrical resistivity (r)
measurements are reported on NaxCoO2 compounds with x = 1.0, 0.7 and 0.6. These
are single-phase compounds crystallizing in the hexagonal structure (space
group P63/mmc) at room temperature. Thermo-electric power values at 300K
(S300K) are, 80mV/K, 39m... | 0412122v1 |
2011-11-21 | Anisotropic Magnetoresistance Effects in Fe, Co, Ni, Fe_4N, and Half-Metallic Ferromagnet: A Systematic Analysis | We theoretically analyze the anisotropic magnetoresistance (AMR) effects of
bcc Fe (+), fcc Co (+), fcc Ni (+), Fe$_4$N (-), and a half-metallic
ferromagnet (-). The sign in each ( ) represents the sign of the AMR ratio
observed experimentally. We here use the two-current model for a system
consisting of a spin-polariz... | 1111.4864v3 |
2013-09-25 | Piezoresistance in Silicon and its nanostructures | Piezoresistance is the change in the electrical resistance, or more
specifically the resistivity, of a solid induced by an applied mechanical
stress. The origin of this effect in bulk, crystalline materials like Silicon,
is principally a change in the electronic structure which leads to a
modification of the charge car... | 1309.6445v2 |
2014-09-25 | Superconductivity in 122-type antimonide BaPt$_2$Sb$_2$ | The crystal structure, superconducting properties, and electronic structure
of a novel superconducting 122-type antimonide, BaPt$_2$Sb$_2$, have been
investigated by measurements of powder X-ray diffraction patterns, electrical
resistivity, ac magnetic susceptibility, specific heat as well as ab-initio
calculations. Th... | 1409.7147v1 |
2014-11-11 | Tunable Cobalt Vacancies and Related Properties in LaCoxAs2 | The origin of transition metal vacancies and their effects on the properties
of ThCr2Si2-type compounds have been less studied and poorly understood. Here
we carefully investigate the structure, physical properties, and electronic
structure for a series of lanthanum cobalt arsenides with nominal composition
of LaCoxAs2... | 1411.2788v1 |
2017-10-02 | Realization of the Axion Insulator State in Quantum Anomalous Hall Sandwich Heterostructures | The 'magnetoelectric effect' arises from the coupling between magnetic and
electric properties in materials. The Z2 invariant of topological insulators
(TIs) leads to a quantized version of this phenomenon, known as the topological
magnetoelectric (TME) effect. This effect can be realized in a new topological
phase cal... | 1710.00471v2 |
2018-04-20 | Pressure induced superconductivity bordering a charge-density-wave state in NbTe4 with strong spinorbit coupling | Transition-metal chalcogenides host various phases of matter, such as
charge-density wave (CDW), superconductors, and topological insulators or
semimetals. Superconductivity and its competition with CDW in low-dimensional
compounds have attracted much interest and stimulated considerable research.
Here we report pressu... | 1804.07448v1 |
2018-11-12 | Laser writable high-K dielectric for van der Waals nano-electronics | Like silicon-based semiconductor devices, van der Waals heterostructures will
require integration with high-K oxides. This is needed to achieve suitable
voltage scaling, improved performance as well as allowing for added
functionalities. Unfortunately, commonly used high-k oxide deposition methods
are not directly comp... | 1811.04829v1 |
2018-10-09 | Magnetic behavior, Griffiths phase and magneto-transport study in 3$d$ based nano-crystalline double perovskite Pr$_2$CoMnO$_6$ | Double perovskite (DP) oxide material receive extensive research interest due
to exciting physical properties with potential technological application. 3$d$
based DP oxides are promising for exciting physics like magnetodielectric,
ferroelectric, Griffith phase etc., specially Co/Mn DPs are gaining much
research intere... | 1810.03895v1 |
2020-02-11 | A Multiscale Constitutive Model for Metal Forming of Dual Phase Titanium Alloys by Incorporating Inherent Deformation and Failure Mechanisms | Ductile metals undergo a considerable amount of plastic deformation before
failure. Void nucleation, growth and coalescence is the mechanism of failure in
such metals. {\alpha}/{\beta} titanium alloys are ductile in nature and are
widely used for their unique set of properties like specific strength, fracture
toughness... | 2002.04459v1 |
2020-04-23 | Hybrid Graphene/Carbon Nanofiber Wax Emulsion for Paper-based Electronics and Thermal Management | Materials for electronics that function as electrical and/or thermal
conductors are often rigid, expensive, difficult to be sourced and sometimes
toxic. An electrically and thermally conductive nanocomposite that is
lightweight, flexible and eco-friendly could improve the environmental
friendliness of the electronics s... | 2004.11476v1 |
2020-09-21 | Photocurrent Imaging of Multi-Memristive Charge Density Wave Switching in Two-Dimensional 1T-TaS2 | Transport studies of atomically thin 1T-TaS2 have demonstrated the presence
of intermediate resistance states across the nearly commensurate (NC) to
commensurate (C) charge density wave (CDW) transition, which can be further
switched electrically. While this presents exciting opportunities for the
material in memristor... | 2009.10179v1 |
2018-12-21 | Transfer of mass and momentum at rough and porous surfaces | The surface texture of materials plays a critical role in wettability,
turbulence and transport phenomena. In order to design surfaces for these
applications, it is desirable to characterise non-smooth and porous materials
by their ability to exchange mass and momentum with flowing fluids. While the
underlying physics ... | 1812.09401v2 |
2019-06-25 | Titanium Contacts to MoS2 with Interfacial Oxide: Interface Chemistry and Thermal Transport | The deposition of a thin oxide layer at metal/semiconductor interfaces has
been previously reported as a means of reducing contact resistance in 2D
electronics. Using X-ray photoelectron spectroscopy with in-situ Ti deposition,
we fabricate Au/Ti/TiOx/MoS2 samples as well as Au/Ti/MoS2 and Au/TiOx/MoS2 for
comparison. ... | 1906.10727v1 |
2019-06-27 | The Essential Work of Fracture Parameters for 3D printed polymer sheets | Additive manufacturing is becoming increasingly popular in academia and
industry. Accordingly, there has been a growing interest in characterizing 3D
printed samples to determine their structural integrity behaviour. We employ
the Essential Work of Fracture (EWF) to investigate the mechanical response of
polymer sheets... | 1906.11512v1 |
2019-10-09 | The roles of adhesion, internal heat generation and elevated temperatures in normally loaded, sliding rough surfaces | The thermal effects of plastic and frictional heat generation and elevated
temperature were examined along with the role of adhesion in the context of
galling wear, using a representative crystal plasticity, normally loaded,
sliding surface model. Galling frequency behaviour was predicted for 316L
steel. Deformation of... | 1910.03830v1 |
2020-01-06 | Two-dimensional antiferroelectric tunnel junction | Ferroelectric tunnel junctions (FTJs), which consist of two metal electrodes
separated by a thin ferroelectric barrier, have recently aroused significant
interest for technological applications as nanoscale resistive switching
devices. So far, most of existing FTJs have been based on perovskite-oxide
barrier layers. Th... | 2001.01639v3 |
2020-01-28 | Interlayer band-to-band tunneling and negative differential resistance in van der Waals BP/InSe field effect transistors | Atomically thin layers of van der Waals (vdW) crystals offer an ideal
material platform to realize tunnel field effect transistors (TFETs) that
exploit the tunneling of charge carriers across the forbidden gap of a vdW
heterojunction. This type of device requires a precise energy band alignment of
the different layers ... | 2001.10273v1 |
2020-08-31 | Creep deformation of WC hardmetals with iron-based binders | Iron is a candidate to replace cobalt in WC hardmetals, due to its lower cost
and toxicity. A WC-FeCr hardmetal was compression tested at 900-1200 {\deg}C.
Particular attention is paid to the steady-state creep rates and
stress-exponents (n) during isostress treatments. Three regimes of stress
dependence are observed. ... | 2008.13565v1 |
2020-10-06 | Role of f-d exchange interaction and Kondo scattering in Nd doped pyrochlore Iridate (Eu1-xNdx)2Ir2O7 | We report study of magnetization, resistivity, magnetoresistance and specific
heat of the pyrochlore Iridate (Eu1-xNdx)2Ir2O7 with x=0.0, 0.5 and 1.0, where
spin orbit coupling, electronic correlation, magnetic frustration and Kondo
scattering coexists. Metal insulator transition temperature (T_MI) decrease
with increa... | 2010.02685v1 |
2020-10-15 | Multipurpose and Reusable Ultrathin Electronic Tattoos Based on PtSe2 and PtTe2 | Wearable bioelectronics with emphasis on the research and development of
advanced person-oriented biomedical devices have attracted immense interest in
the last decade. Scientists and clinicians find it essential to utilize
skin-worn smart tattoos for on-demand and ambulatory monitoring of an
individual's vital signs. ... | 2010.07534v1 |
2020-10-22 | Development, Processing and Applications of a UV-Curable Polymer with Surface Active Thiol Groups | We present here a novel resist formulation with active thiol groups at the
surface. The material is UV curable, and can be patterned at the micro- and
nanoscale by UV nanoimprint lithography. The resist formulation development,
its processing, patterning and surface characterization are presented here. In
addition, a p... | 2010.11878v1 |
2021-04-02 | Crystal, local atomic and electronic structures of YbFe$_2$Zn$_{20-x}$Cd$_x$ ($0 \leq x \leq 1.4$): a multi-band system with possible coexistence of light and heavy fermions | The partial (up to 7 %) substitution of Cd for Zn in the Yb-based
heavy-fermion material YbFe$_2$Zn$_{20}$ is known to induce a slight ($\sim 20$
%) reduction of the Sommerfeld specific heat coefficient $\gamma$ and a huge
(up to two orders of magnitude) reduction of the $T^2$ resistivity coefficient
$A$, corresponding... | 2104.01050v1 |
2021-08-18 | Robust narrow-gap semiconducting behavior in square-net La$_{3}$Cd$_{2}$As$_{6}$ | ABSTRACT: Narrow-gap semiconductors are sought-after materials due to their
potential for long-wavelength detectors, thermoelectrics, and more recently
non-trivial topology. Here we report the synthesis and characterization of a
new family of narrow-gap semiconductors, $R$$_{3}$Cd$_{2}$As$_{6}$ ($R=$ La,
Ce). Single cr... | 2108.08006v1 |
2021-10-01 | Effects of nonmagnetic impurities and subgap states on the kinetic inductance, complex conductivity, quality factor and depairing current density | We investigate how a combination of a nonmagnetic-impurity scattering rate
$\gamma$ and finite subgap states parametrized by Dynes $\Gamma$ affects
various physical quantities relevant to to superconducting devices: kinetic
inductance $L_k$, complex conductivity $\sigma$, surface resistance $R_s$,
quality factor $Q$, a... | 2110.00573v1 |
2021-10-21 | Angular harmonic Hall voltage and magnetoresistance measurements of Pt/FeCoB and Pt-Ti/FeCoB bilayers for spin Hall conductivity determination | Materials with significant spin-orbit coupling enable efficient
spin-to-charge interconversion, which can be utilized in novel spin electronic
devices. A number of elements, mainly heavy-metals (HM) have been identified to
produce a sizable spin current ($j_\mathrm{s}$), while supplied with a charge
current ($j$), dete... | 2110.11483v1 |
2021-12-23 | Hydrogen induced electronic transition within correlated perovskite nickelates with heavy rare-earth composition | Although discovery in hydrogen induced electronic transition within
perovskite family of rare-earth nickelate (ReNiO3) opens up a new paradigm in
exploring both the new materials functionality and device applications, the
existing research stays at ReNiO3 with light rare-earth compositions. To
further extend the cognit... | 2112.12357v1 |
2022-12-01 | Extrinsic to intrinsic mechanism crossover of anomalous Hall effect in the Ir-doped MnPtSn Heusler system | Recent findings of large anomalous Hall signal in nonferromagnetic and
nonferrimagnetic materials suggest that the magnetization of the system is not
a critical component for the realization of the anomalous Hall effect (AHE).
Here, we present a combined theoretical and experimental study demonstrating
the evolution of... | 2212.00360v1 |
2023-06-26 | Large electro-opto-mechanical coupling in VO2 neuristors | Biological neurons are electro-mechanical systems, where the generation and
propagation of an action potential is coupled to generation and transmission of
an acoustic wave. Neuristors, such as VO2, characterized by insulator-metal
transition (IMT) and negative differential resistance, can be engineered as
self-oscilla... | 2306.14367v1 |
2023-08-28 | Crystal-Chemical Origins of the Ultrahigh Conductivity of Metallic Delafossites | Despite their highly anisotropic complex-oxidic nature, certain delafossite
compounds (e.g., PdCoO2, PtCoO2) are the most conductive oxides known, for
reasons that remain poorly understood. Their room-temperature conductivity can
exceed that of Au, while their low-temperature electronic mean-free-paths reach
an astonis... | 2308.14257v2 |
2023-10-26 | Slow and Non-Equilibrium Dynamics due to Electronic Ferroelectricity in a Strongly-Correlated Molecular Conductor | Using a combination of resistance fluctuation (noise) and dielectric
spectroscopy we investigate the nature of relaxor-type electronic
ferroelectricity in the organic conductor $\kappa$-(BETS)$_2$Mn[N(CN)$_2$]$_3$,
a system representative for a wider class of materials, where strong
correlations of electrons on a latti... | 2310.17242v2 |
2024-01-01 | Nonlinear charge transport induced by gate voltage oscillation in few-layer MnBi2Te4 | Nonlinear charge transport, including nonreciprocal longitudinal resistance
and nonlinear Hall effect, has garnered significant attention due to its
ability to explore inherent symmetries and topological properties of novel
materials. An exciting recent progress along this direction is the discovery of
significant nonr... | 2401.00679v1 |
1997-12-15 | Spin Tunneling in Conducting Oxides | Direct tunneling in ferromagnetic junctions is compared with
impurity-assisted, surface state assisted, and inelastic contributions to a
tunneling magnetoresistance (TMR). Theoretically calculated direct tunneling in
iron group systems leads to about a 30% change in resistance, which is close to
experimentally observed... | 9712170v2 |
2000-09-14 | Experimental study of negative photoconductivity in n-PbTe(Ga) epitaxial films | We report on low-temperature photoconductivity (PC) in n-PbTe(Ga) epitaxial
films prepared by the hot-wall technique on <111>-BaF_2 substrates. Variation
of the substrate temperature allowed us to change the resistivity of the films
from 10^8 down to 10_{-2} Ohm x cm at 4.2 K. The resistivity reduction is
associated wi... | 0009209v1 |
2002-04-20 | Possible Magnetic separation in Ru doped La0.67Ca0.33MnO3 | X-ray diffraction, resistivity, ac susceptibility and magnetization studies
on La0.67Ca0.33Mn1-xRuxO3 (0 x < 0.1) were carried out. A significant increase
in the lattice parameters indicated the presence of mixed valance state of Ru:
Ru3+ and Ru4+. The resistivity of the doped compounds exhibited two features: a
broad ... | 0204441v1 |
2003-02-03 | Metallicity and its low temperature behavior in dilute 2D carrier systems | We theoretically consider the temperature and density dependent transport
properties of semiconductor-based 2D carrier systems within the RPA-Boltzmann
transport theory, taking into account realistic screened charged impurity
scattering in the semiconductor. We derive a leading behavior in the transport
property, which... | 0302047v3 |
2003-04-21 | Chemical, Structural, and Transport Properties of Na1-xCoO2 | We report measurement of room-temperature compressibility, thermal expansion,
thermoelectric power a(T) at various pressures P < 20 kbar, basal-plane
resistivity rab (T), magnetic susceptibility and thermal conductivity k(T)
taken on single-crystal or cold-pressed Na0.57CoO2. An enhancement of a large
thermopower with ... | 0304455v1 |
2004-11-04 | Electron transport, penetration depth and upper critical magnetic field of ZrB12 and MgB2 | We report on the synthesis and measurements of the temperature dependence of
resistivity, R(T), the penetration depth, l(T), and upper critical magnetic
field, Hc2(T), for polycrystalline samples of dodecaboride ZrB12 and diboride
MgB2. We conclude that ZrB12 as well as MgB2 behave like simple metals in the
normal stat... | 0411116v1 |
2008-03-03 | Phase separation and the effect of quenched disorder in $Pr_{0.5}Sr_{0.5}MnO_3$ | The nature of phase separation in $Pr_{0.5}Sr_{0.5}MnO_3$ has been probed by
linear as well as nonlinear magnetic susceptibilities and resistivity
measurements across the 2nd order paramagnetic to ferromagnetic transition
($T_C$) and 1st order ferromagnetic to antiferromagnetic transition ($T_N$). We
found that the fer... | 0803.0085v1 |
2008-04-16 | Properties of the hole and electron doped perovskites LnCoO3 | Two extreme members of the cobaltite series, LaCoO3 and DyCoO3, were
investigated by the electrical resistivity and thermopower measurements up to
800-1000 K. Special attention was given to effects of extra holes or electrons,
introduced by light doping of Co sites by Mg2+ or Ti4+ ions. The experiments on
the La based ... | 0804.2685v3 |
2008-08-22 | Single crystal growth and physical properties of the layered arsenide BaRh_2As_2 | Single crystals of BaRh_2As_2 have been synthesized from a Pb flux. We
present the room temperature crystal structure, single crystal x-ray
diffraction measurements as a function of temperature T, anisotropic magnetic
susceptibility \chi versus T, electrical resistivity in the ab-plane \rho
versus T, Hall coefficient v... | 0808.3116v1 |
2009-04-24 | Anisotropic magnetoresistance of spin-orbit coupled carriers scattered from polarized magnetic impurities | Anisotropic magnetoresistance (AMR) is a relativistic magnetotransport
phenomenon arising from combined effects of spin-orbit coupling and broken
symmetry of a ferromagnetically ordered state of the system. In this work we
focus on one realization of the AMR in which spin-orbit coupling enters via
specific spin-texture... | 0904.3785v2 |
2011-01-28 | Cooper pair insulator in amorphous films induced by nanometer-scale thickness variations | Unusual transport properties of superconducting (SC) materials, such as the
under doped cuprates, low dimensional superconductors in strong magnetic
fields, and insulating films near the Insulator Superconductor Transition
(IST), have been attributed to the formation of inhomogeneous phases.
Difficulty correlating the ... | 1101.5642v1 |
2011-09-15 | Surface impedance of superconductors with magnetic impurities | Motivated by the problem of the residual surface resistance of the
superconducting radio-frequency (SRF) cavities, we develop a microscopic theory
of the surface impedance of s-wave superconductors with magnetic impurities. We
analytically calculate the current response function and surface impedance for
a sample with ... | 1109.3395v2 |
2012-09-25 | Sb concentration dependent structural and resistive properties of polycrystalline Bi-Sb alloys | Polycrystalline Bi-Sb alloys have been synthesized over a wide range of
antimony concentration (8 at% to 20 at%) by solid state reaction method. In
depth structural analysis using X-Ray diffraction (XRD) and temperature
dependent resistivity measurement of synthesized samples have been performed.
XRD data confirmed sin... | 1209.5506v1 |
2012-12-18 | Growth and physical property study of single nanowire (diameter ~ 45nm) of half doped Manganite | We report here the growth and characterization of functional oxide nanowire
of hole doped manganite of La0.5Sr0.5MnO3 (LSMO). We also report four probe
electrical resistance measurement of single nanowire of LSMO (diameter ~ 45nm)
using FIB fabricated electrodes. The wires were fabricated by hydrothermal
method using a... | 1212.4374v2 |
2013-10-16 | Spin-Flipping in Pt and at Co/Pt Interfaces | There has been recent controversy about the magnitude of spin-flipping in the
heavy metal Pt, characterized by the spin-diffusion length, lsf(Pt) We propose
a resolution of this controversy, and also present evidence for the importance
of a phenomenon neglected in prior studies of transport across sputtered
Ferromagnet... | 1310.4364v2 |
2013-11-02 | Experimental evidence for direct insulator-quantum Hall transition in multi-layer graphene | We have performed magnetotransport measurements on a multi-layer graphene
flake. At the crossing magnetic field Bc, an approximately
temperature-independent point in the measured longitudinal resistivity, which
is ascribed to the direct insulator-quantum Hall (I-QH) transition, is
observed. By analyzing the amplitudes ... | 1311.0353v1 |
2013-12-16 | Which Memristor Theory is Best for Relating Devices Properties to Memristive Function? | There are three theoretical models which purport to relate
experimentally-measurable or fabrication-controllable device properties to the
memristor's operation: 1. Strukov et al's phenomenological model; 2. Georgiou
et al's Bernoulli rewrite of that phenomenological model; 3. Gale's
memory-conservation model. They diff... | 1312.4422v1 |
2015-11-13 | Studies on proximity effect in Mo/Bi1.95Sb0.05Se3 hybrid structure | Proximity effect in a mechanically exfoliated Bi1.95Sb0.05Se3 topological
insulator (TI) single crystal partially covered with disordered superconducting
(SC) Mo thin film is reported. Magnetotransport measurement was performed
simultaneously across three different regions of the sample viz. SC, TI and
SC/TI junction. ... | 1511.04213v1 |
2016-06-28 | Enhanced superconductivity, Kondo behavior and negative-curvature resistivity of oxygen-irradiated thin films of aluminium | We followed the evolution of the normal and superconducting properties of Al
thin films after each session of various successive oxygen irradiations at
ambient temperature. Such irradiated films, similar to the granular ones,
exhibit enhanced superconductivity, Kondo behavior and negative-curvature
resistivity. Two dis... | 1606.08918v2 |
2016-06-30 | Quadrupole-Driven Non-Fermi Liquid and Magnetic-Field Induced Heavy Fermion States in a Non-Kramers Doublet System | Orbital degrees of freedom in condensed matters could play important roles in
forming a variety of exotic electronic states by interacting with conduction
electrons. In 4f electron systems, because of strong intra-atomic spin-orbit
coupling, an orbitally degenerate state inherently carries quadrupolar degrees
of freedo... | 1606.09571v1 |
2016-10-27 | Magnetoresistance and robust resistivity plateau in MoAs2 | We have grown the MoAs$_2$ single crystal which crystallizes in a monoclinic
structure with C2/m space group. Transport measurements show that MoAs$_2$
displays a metallic behavior at zero field and undergoes a
metal-to-semiconductor crossover at low temperatures when the applied magnetic
field is over 5 T. A robust re... | 1610.08594v2 |
2017-10-24 | Absence of Metallic Behavior in Epitaxial NiCo2O4 Thin Films: Role of Microstructural Disorder | Despite the low resistivity (~ 1 mohm cm), the metallic electrical transport
has not been commonly observed in the inverse spinel NiCo2O4, except in certain
epitaxial thin films. Previous studies have stressed the effect of valence
mixing and degree of spinel inversion on the electric conduction of NiCo2O4
films. In th... | 1710.08608v2 |
2017-12-05 | Peculiarities of the electronic transport in half-metallic Co-based Heusler alloys | Electrical, magnetic and galvanomagnetic properties of half-metallic Heusler
alloys of Co$_2$YZ (Y = Ti, V, Cr, Mn, Fe, Ni, and Z = Al, Si, Ga, Ge, In, Sn,
Sb) were studied in the temperature range 4.2--900 K and in magnetic fields of
up to 100 kOe. It was found that varying Y in affects strongly the electric
resistivi... | 1712.01584v1 |
2017-12-25 | Effects of nuclear spins on the transport properties of the edge of two-dimensional topological insulators | The electrons in the edge channels of two-dimensional topological insulators
can be described as a helical Tomonaga-Luttinger liquid. They couple to nuclear
spins embedded in the host materials through the hyperfine interaction, and are
therefore subject to elastic spin-flip backscattering on the nuclear spins. We
inve... | 1712.09040v2 |
2018-01-26 | Local Magnetic Measurements of Trapped Flux Through a Permanent Current Path in Graphite | Temperature and field dependent measurements of the electrical resistance of
different natural graphite samples, suggest the existence of superconductivity
at room temperature in some regions of the samples. To verify whether
dissipationless electrical currents are responsible for the trapped magnetic
flux inferred fro... | 1801.08836v1 |
2018-01-29 | Observation of the Meissner effect at room temperature in single-layer graphene brought into contact with alkanes | There are claims of synthesis of a room temperature superconductor. However,
these claims have not been officially accepted by scientific communities.
Currently, the highest transition temperature (Tc) recognized in scientific
articles is 135 K at 1 atm of Hg-Ba-Ca-Cu-O system which is a copper oxide
superconductor. We... | 1801.09376v1 |
2019-05-10 | Magnetic-Field-Induced Phenomena in the Paramagnetic Superconductor UTe$_{2}$ | We present magnetoresistivity measurements on the heavy-fermion
superconductor UTe$_{2}$ in pulsed magnetic fields $\mu_0H$ up to 68~T and
temperatures $T$ from 1.4 to 80~K. Magnetic fields applied along the three
crystallographic directions $\mathbf{a}$ (easy magnetic axis), $\mathbf{b}$,
and $\mathbf{c}$ (hard magnet... | 1905.03990v1 |
2019-05-13 | Extending Policy from One-Shot Learning through Coaching | Humans generally teach their fellow collaborators to perform tasks through a
small number of demonstrations. The learnt task is corrected or extended to
meet specific task goals by means of coaching. Adopting a similar framework for
teaching robots through demonstrations and coaching makes teaching tasks highly
intuiti... | 1905.04841v1 |
2019-09-18 | Blockade of vortex flow by thermal fluctuations in atomically thin clean-limit superconductors | Resistance in superconductors arises from the motion of vortices driven by
flowing supercurrents or external electromagnetic fields and may be strongly
affected by thermal or quantum fluctuations. The common expectation borne out
in previous experiments is that as the temperature is lowered, vortex motion is
suppressed... | 1909.08469v1 |
2019-09-19 | Thermal rectification and interface thermal resistance in hybrid pillared-graphene and graphene: A molecular dynamics approach | In this study, we investigate the thermal rectification and thermal
resistance in the hybrid pillared-graphene and graphene (PGG) system. This is
done through the classical molecular dynamics simulation (MD) and also with a
continuum model. At first, the thermal conductivity of both pillared-graphene
and graphene is ca... | 1909.08971v1 |
2014-08-19 | Device Perspective for Black Phosphorus Field-Effect Transistors: Contact Resistance, Ambipolar and Scaling | Although monolayer black phosphorus (BP) or phosphorene has been successfully
exfoliated and its optical properties have been explored, most of electrical
performance of the devices is demonstrated on few-layer phosphorene and
ultra-thin BP films. In this paper, we study the channel length scaling of
ultra-thin BP fiel... | 1408.4206v2 |
2014-08-19 | Exploring quantum phase transition in Pd_{1-x}Ni_x nanoalloys | Pd$_{1-x}$Ni$_x$ alloy system is an established ideal transition metal system
possessing a composition induced paramagnetic to ferromagnetic quantum phase
transition (QPT) at the critical concentration $x_c \sim$ 0.026 in bulk. A
low-temperature non-Fermi liquid (NFL) behaviour around $x_c$ usually indicates
the presen... | 1408.4316v1 |
2017-01-03 | Conduction Channel Formation and Dissolution Due to Oxygen Thermophoresis/Diffusion in Hafnium Oxide Memristors | Transition metal oxide memristors, or resistive random-access memory (RRAM)
switches, are under intense development for storage-class memory because of
their favorable operating power, endurance, speed, and density. Their
commercial deployment critically depends on predictive compact models based on
understanding nanos... | 1701.00864v1 |
2018-10-05 | Effect of impurities on morphology and growth mode of (111) and (001) epitaxial-like ScN films | ScN material is an emerging semiconductor with an indirect bandgap. It has
attracted attention for its thermoelectric properties, use as seed layers, and
for alloys for piezoelectric application. ScN or other transition metal nitride
semiconductors used for their interesting electrical properties are sensitive
to conta... | 1810.02593v1 |
2019-07-05 | A post mortem analysis of the strain-induced crystallization effects on fatigue of elastomers | Natural rubber (NR) is the most commonly used elastomer in the automotive
industry thanks to its outstanding fatigue resistance. Strain-induced
crystallization (SIC) is found to play a role of paramount importance in the
great crack growth resistance of NR [1]. Typically, NR exhibits a lifetime
reinforcement for non-re... | 1907.02688v1 |
2022-02-12 | Expansion of Graphene-Based Device Technology for Resistance Metrology | The field of Quantum Hall metrology had a strong start with the implemntation
of GaAs-based devices, given that 2D materials systems provided access to
interesting quantum phenomena, including the infrastructure associated with
making relevant measurements. With the technology laid out, further
improvements in both inf... | 2202.05954v1 |
2016-03-21 | Influence of rhombohedral stacking order in the electrical resistance of bulk and mesoscopic graphite | The electrical, in-plane resistance as a function of temperature $R(T)$ of
bulk and mesoscopic thin graphite flakes obtained from the same batch was
investigated. Samples thicker than $\sim 30$ nm show metalliclike contribution
in a temperature range that increases with the sample thickness, whereas a
semiconductinglik... | 1603.06365v3 |
2017-04-03 | Plasmonic heating in Au nanowires at low Temperatures: The role of thermal boundary resistance | Inelastic electron tunneling and surface-enhanced optical spectroscopies at
the molecular scale require cryogenic local temperatures even under
illumination - conditions that are challenging to achieve with plasmonically
resonant metallic nanostructures. We report a detailed study of the laser
heating of plasmonically ... | 1704.00771v1 |
2017-05-18 | Effects of the Functional Group on the Lithium Ions Across the Port of Carbon Nanotube | The mean axial velocity of lithium irons across the entrance of carbon
nanotube VLi is an important factor for the charge-discharge performances of
rechargeable Lithium battery. The molecular dynamics simulation method is
adopted to evaluate the factors and their effects on VLi which include the
diameter of carbon nano... | 1705.06650v1 |
2017-08-24 | Memory matrix theory of the dc resistivity of a disordered antiferromagnetic metal with an effective composite operator | We perform the calculation of the dc resistivity as a function of temperature
of the "strange-metal" state that emerges in the vicinity of a
spin-density-wave phase transition in the presence of weak disorder. This
scenario is relevant to the phenomenology of many important correlated
materials, such as, e.g., the pnic... | 1708.07537v1 |
2019-04-03 | Patterning of diamond like carbon films for sensor applications using silicon containing thermoplastic resist (SiPol) as a hard mask | Patterning of diamond-like carbon (DLC) and DLC:metal nanocomposites is of
interest for an increasing number of applications. We demonstrate a nanoimprint
lithography process based on silicon containing thermoplastic resist combined
with plasma etching for straightforward patterning of such films. A variety of
differen... | 1904.01880v1 |
2019-04-02 | Filament mechanics in a half-space via regularised Stokeslet segments | We present a generalisation of efficient numerical frameworks for modelling
fluid-filament interactions via the discretisation of a recently-developed,
non-local integral equation formulation to incorporate regularised Stokeslets
with half-space boundary conditions, as motivated by the importance of
confining geometrie... | 1904.02543v2 |
2015-07-23 | Spatially resolved TiOx phases in RRAM conductive nanofilaments using soft X-ray spectromicroscopy | Reduction in metal-oxide thin films has been suggested as the key mechanism
responsible for forming conductive nanofilaments within solid-state memory
devices, enabling their resistive switching capacity. The quantitative spatial
identification of such filaments is a daunting task, particularly for
metal-oxides capable... | 1507.06588v1 |
2019-01-16 | Quantum oscillations in strongly correlated topological Kondo insulators | The observation of quantum oscillations in topological Kondo insulators SmB6
and YbB12 is a recent puzzling experimental discovery. Quantum oscillations
observed in the resistivity and the magnetization are usually explained by the
existence of the Fermi surface. However, Kondo insulators do not have a Fermi
surface an... | 1901.05099v2 |
2019-10-18 | Probing quantum spin liquids in equilibrium using the inverse spin Hall effect | We propose an experimental method utilizing a strongly spin-orbit coupled
metal to quantum magnet bilayer that will probe quantum magnets lacking long
range magnetic order, e.g., quantum spin liquids, via examination of the
voltage noise spectrum in the metal layer. The bilayer is held in thermal and
chemical equilibri... | 1910.08610v2 |
2020-05-23 | Mixed ground state in Fe-Ni Invar alloys | We investigate the ground state properties of Invar alloys via detailed study
of the electronic structure of Fe$_{1-x}$Ni$_x$ alloys ($x$ = 0.2, 0.3, 0.4,
0.5, 0.6, 0.7, 0.9) employing $x$-ray photoelectron spectroscopy (XPS). While
all the alloys exhibit soft ferromagnetic behavior with Curie temperature much
higher t... | 2005.11493v1 |
2020-07-01 | Impact of V substitution on the physical properties of Ni-Zn-Co ferrites: structural, magnetic, dielectric and electrical properties | We have investigated the Vanadium- (V) substituted Ni-Zn-Co ferrites where
the samples were prepared using solid-state reaction technique. The impact of
V5+ substitution on the structural, magnetic, dielectric and electrical
properties of Ni-Zn-Co ferrites has been studied. XRD analysis confirmed the
formation of a sin... | 2007.00602v1 |
2020-07-20 | Capping and gate control of anomalous Hall effect and hump structure in ultra-thin SrRuO$_3$ films | Ferromagnetism and exotic topological structures in SrRuO$_3$ (SRO) induce
sign-changing anomalous Hall effect (AHE). Recently, hump structures have been
reported in the Hall resistivity of SRO thin films, especially in the
ultra-thin regime. We investigate the AHE and hump structure in the Hall
resistivity of SRO ultr... | 2007.09872v2 |
2020-07-23 | Origin of gap-like behaviors in URu$_2$Si$_2$: Combined study via quasiparticle scattering spectroscopy and resistivity measurements | We address two long-standing questions regarding the hidden order in URu2Si2:
Is it associated with the hybridization process, and what are the distinct
roles played by the localized and itinerant electrons? Our quasiparticle
scattering spectroscopy reveals a hybridization gap ubiquitous in the entire
phase space spann... | 2007.12235v2 |
2020-10-11 | Hydrothermal synthesis and complete phase diagram of FeSe$_{1-x}$S$_{x}$ $(0 \leq x \leq 1)$ single crystals | We report the successful synthesis of FeSe$_{1-x}$S$_{x}$ single crystals
with $x$ ranging from 0 to 1 via a hydrothermal method. A complete phase
diagram of FeSe$_{1-x}$S$_{x}$ has been obtained based on resistivity and
magnetization measurements. The nematicity is suppressed with increasing $x$,
and a small supercond... | 2010.05191v3 |
2021-03-12 | Area-selective deposition and B $δ$-doping of Si(100) with BCl$_{3}$ | B-doped $\delta$-layers were fabricated in Si(100) using BCl$_{3}$ as a
dopant precursor in ultrahigh vacuum. BCl$_{3}$ adsorbed readily at room
temperature, as revealed by scanning tunneling microscopy (STM) imaging.
Annealing at elevated temperatures facilitated B incorporation into the Si
substrate. Secondary ion ma... | 2103.07529v1 |
2021-05-21 | Convection, Heat Generation and Particle Deposition in Direct Laser Writing of Metallic Microstructures | Three-dimensional metallic microstructures find applications as stents in
medicine, as ultrabroadband antennas in communications, in micromechanical
parts or as structures of more fundamental interest in photonics like
metamaterials. Direct metal printing of such structures using three-dimensional
laser lithography is ... | 2105.10243v2 |
2021-10-29 | Optimal asymmetry of transistor-based terahertz detectors | Detectors of terahertz radiation based on field-effect transistors (FETs) are
among most promising candidates for low-noise passive signal rectification both
in imaging systems and wireless communications. However, it was not realised so
far that geometric asymmetry of common FET with respect to source-drain
interchang... | 2110.15810v1 |
2021-12-06 | Dynamical Mean Field Theory of Moiré Bilayer Transition Metal Dichalcogenides: Phase Diagram, Resistivity, and Quantum Criticality | We present a comprehensive dynamical mean field study of the triangular
lattice moir\'e Hubbard model, which is believed to represent the physics of
moir\'e bilayer transition metal dichalcogenides. In these materials, important
aspects of the band structure including the bandwidth and the order and
location of van Hov... | 2112.03080v3 |
2022-03-15 | Challenges and opportunities of srf theory for next generation particle accelerators | We suggest a program to establish theoretical performance limits of srf
cavities using modern theories of nonequilibrium superconductivity under a
strong electromagnetic field. These theories will be used to calculate the main
parameter of merit of srf cavities: the quality factor Q and its dependencies
on the field am... | 2203.08315v1 |
2022-05-19 | Electrical Circuit Modelling of Nanofluidic Systems | Nanofluidic systems exhibit transport characteristics that have made
technological marvels such as desalination, energy harvesting, and highly
sensitive biomolecule sensing possible by virtue of their ability to influence
small currents due to the selective transport of ions. Traditionally many of
these applications ha... | 2205.09437v3 |
2022-06-08 | Phonon-limited resistivity of multilayer graphene systems | We calculate the theoretical contribution to the doping and temperature ($T$)
dependence of electrical resistivity due to scattering by acoustic phonons in
Bernal bilayer graphene (BBG) and rhombohedral trilayer graphene (RTG). We
focus on the role of nontrivial geometric features of the detailed, anisotropic
$k\cdot p... | 2206.04080v2 |
2022-07-18 | Confinement-Induced Chiral Edge Channel Interaction in Quantum Anomalous Hall Insulators | In quantum anomalous Hall (QAH) insulators, the interior is insulating but
electrons can travel with zero resistance along one-dimensional conducting
paths known as chiral edge channels (CECs). These CECs have been predicted to
be confined to the one-dimensional (1D) edges and exponentially decay in the
two-dimensional... | 2207.08371v1 |
2022-09-12 | Robust design optimization for enhancing delamination resistance of composites | Recent developments in the field of computational modeling of fracture have
opened up possibilities for designing structures against failure. A special
case, called interfacial fracture or delamination, can occur in loaded
composite structures where two or more materials are bonded together at
comparatively weak interf... | 2209.05241v1 |
2022-10-25 | Enhanced Thermoelectric Performance of Nanostructured Nickel Doped Ag2Te | We report on the thermoelectric properties of nickel doped Ag2-xNixTe (x = 0,
0.015, 0.025 & 0.055, 0.115, 0.155) nanostructures in the temperature (T) range
of 5 K to 575 K. The electrical resistivity of Ag2Te nanostructure shows
metallic behaviour in 5 K to 300 K initially that evolves into two metal to
insulator tra... | 2210.13903v1 |
2022-12-28 | An Atomistic Model of Field-Induced Resistive Switching in Valence Change Memory | In Valence Change Memory (VCM) cells, the conductance of an insulating
switching layer is reversibly modulated by creating and redistributing point
defects under an external field. Accurate simulations of the switching dynamics
of these devices can be difficult due to their typically disordered atomic
structures and in... | 2212.14090v1 |
2023-05-02 | Direct observations of spin fluctuations in spin-hedgehog-anti-hedgehog lattice states in MnSi$_{1-x}$Ge$_x$ ($x=0.6$ and $0.8$) at zero magnetic field | The helimagnetic compounds MnSi$_{1-x}$Ge$_{x}$ show the three-dimensional
multiple-$q$ order as referred to as spin-hedgehog-anti-hedgehog (SHAH)
lattice. Two representative forms of SHAH are cubic-3$q$ lattice with $q \|
\langle100\rangle$ and tetrahedral-4$q$ lattice with $q \| \langle111\rangle$,
which show up typi... | 2305.01172v1 |
2023-08-30 | A Deep Dive into the Design Space of a Dynamically Reconfigurable Cryogenic Spiking Neuron | Spiking neural network offers the most bio-realistic approach to mimic the
parallelism and compactness of the human brain. A spiking neuron is the central
component of an SNN which generates information-encoded spikes. We present a
comprehensive design space analysis of the superconducting memristor (SM)-based
electric... | 2308.15754v1 |
2023-12-03 | Experimental apparatus for non-contact resistivity measurements of the rock core plug based on magnetic induction | A new apparatus has been developed to measure the conductivity of rock
samples. The probe, which consists of multi-coil transmitters and receivers
doesn't require physical contact with the samples. The measurement is based on
the induction principle. The measurement system is validated by using saline
solutions and wat... | 2312.01375v1 |
2023-12-08 | The Kernel Method for Electrical Resistance Tomography | In this paper we consider the inverse problem of electrical conductivity
retrieval starting from boundary measurements, in the framework of Electrical
Resistance Tomography (ERT). In particular, the focus is on non-iterative
reconstruction algorithms, compatible with real-time applications. In this work
a new non-itera... | 2312.05059v1 |
2024-01-08 | Microwave-assisted synthesis of LaMnO3+d: Tuning physical properties with microwave power | Synthesis of transition metal oxides by microwave irradiation is a faster and
energy-saving method compared to conventional heating in an electrical furnace
because microwave energy is directly converted into heat within precursors.
However, not much is known about how the physical properties are modified by
the power ... | 2401.04087v1 |
2024-01-30 | Two-Dimensional Phase-Fluctuating Superconductivity in Bulk-Crystalline NdO$_{0.5}$F$_{0.5}$BiS$_2$ | We present a combined growth and transport study of superconducting
single-crystalline NdO$_{0.5}$F$_{0.5}$BiS$_2$. Evidence of two-dimensional
superconductivity with significant phase fluctuations of preformed Cooper pairs
preceding the superconducting transition is reported. This result is based on
three key observat... | 2401.16980v2 |
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