publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2005-11-19 | Transport, thermal and magnetic properties of RuSr_2(Gd_{1.5}Ce_{0.5})Cu_2O_{10-δ}, a magnetic superconductor | Resistivity, thermoelectric power, heat capacity and magnetization for
samples of RuSr_2(Gd_{1.5}Ce_{0.5})Cu_{2}O_{10-\delta} were investigated in the
temperature range 1.8-300 K with a magnetic field up to 8 T. The resistive
transitions to the superconducting state are found to be determined by the
inhomogeneous (gran... | 0511489v1 |
2007-03-28 | Comparison between experiment and calculated band structures for DyN and SmN | We investigate the electronic band structure of two of the rare-earth
nitrides, DyN and SmN. Resistivity measurements imply that both materials have
a semiconducting ground state, and both show resistivity anomalies coinciding
with the magnetic transition, despite the different magnetic states in DyN and
SmN. X-ray abs... | 0703740v3 |
2007-04-24 | Impedance spectroscopy of epitaxial multiferroic thin films | Temperature dependent impedance spectroscopy enables the many contributions
to the dielectric and resistive properties of condensed matter to be
deconvoluted and characterized separately. We have achieved this for
multiferroic epitaxial thin films of BiFeO3 (BFO) and BiMnO3 (BMO), key
examples of materials with strong ... | 0704.3262v1 |
2007-08-09 | Carbon nanotube array vias for interconnect applications | The material and electrical properties of the CNT single vias and array vias
grown by microwave plasma-enhanced chemical vapor deposition were investigated.
The diameters of multiwall carbon nanotubes (MWNTs) grown on the bottom
electrode of Ta decrease with increasing pretreatment power and substrate
temperature while... | 0708.1298v1 |
2007-08-14 | Suspension of Nanoparticles in SU-8 and Characterization of Nanocomposite Properties | Gold nanospheres, single wall carbon nanotubes (SWNT), and diamonoids were
phyically incorporated into the negative photoresist SU-8. the mixtures were
spin cast onto silicon or aluminium coated silicon wafers. ASTM standard D638
tensile specimens were lithographically patterned in the materials and then
released from ... | 0708.1822v1 |
2007-12-07 | Field Tuned Superconductor to Insulator Transitions in an Amorphous Film with an Imposed Multiply Connected Geometry | We have observed multiple magnetic field driven superconductor to insulator
transitions (SIT) in amorphous Bi films perforated with a nano-honeycomb (NHC)
array of holes. The period of the magneto-resistance, H=H_M=h/2eS where S is
the area of a unit cell of holes, indicates the field driven transitions are
boson domin... | 0712.1076v1 |
2008-07-02 | Nano Imprint Lithography on Silica Sol-gels: a simple route to sequential patterning | Since the pioneering work of S.Y. Chou et al.[1] Nano Imprint Lithography
(NIL) has emerged as a promising technique for surface patterning, opening for
numerous applications ranging from nanophotonics[2] to microfluidics[3]. NIL
basically consists in the stamping of deformable surfaces or films. Preferred
materials ar... | 0807.0378v1 |
2009-01-09 | Stability of a Charged Particle Beam in a Resistive Plasma Channel | A self-focusing of a coasting relativistic beam in a plasma channel that is
confined by an external magnetic field is studied as a means of reconditioning
the beam emerging from a beam injector [a radio frequency quadrupole (RFQ)] for
a linac. A detailed study of the beam stability in the self-focused beam has
been car... | 0901.1167v2 |
2009-07-21 | Anomalous transport properties of the halfmetallic ferromagnets Co2TiSi, Co2TiGe, and Co2TiSn | In this work the theoretical and experimental investigations of Co2TiZ (Z =
Si, Ge, or Sn) compounds are reported. Half-metallic ferromagnetism is
predicted for all three compounds with only two bands crossing the Fermi energy
in the majority channel. The magnetic moments fulfill the Slater-Pauling rule
and the Curie t... | 0907.3562v1 |
2009-08-27 | A low field technique for measuring magnetic and magneto-resistance anisotropy coefficients applied to (Ga,Mn)As | We demonstrate a simple, low cost, magneto-transport method for rapidly
characterizing the magnetic anisotropy and anisotropic magneto-resistance (AMR)
of ferromagnetic devices with uniaxial magnetic anisotropy. This transport
technique is the analogue of magnetic susceptibility measurements of bulk
material but is app... | 0908.3960v1 |
2010-01-20 | Robust charge and magnetic order under electric field and current in the multiferroic LuFe(2)O(4) | We performed elastic neutron scattering measurements on the charge- and
magnetically-ordered multiferroic material LuFe(2)O(4). An external electric
field along the [001] direction with strength up to 20 kV/cm applied at low
temperature (~100 K) does not affect either the charge or magnetic structure.
At higher tempera... | 1001.3611v2 |
2010-10-07 | Compensation-dependence of magnetic and electrical properties in Ga1-xMnxP | We demonstrate the control of the hole concentration in Ga1-xMnxP over a wide
range by introducing compensating vacancies. The resulting evolution of the
Curie temperature from 51 K to 7.5 K is remarkably similar to that observed in
Ga1-xMnxAs despite the dramatically different character of hole transport
between the t... | 1010.1368v2 |
2011-02-04 | Low-Frequency Current Fluctuations in Graphene-like Exfoliated Thin-Films of Topological Insulators | We report on the low-frequency current fluctuations and electronic noise in
thin-films made of bismuth selenide topological insulators. The films were
prepared via the graphene-like mechanical exfoliation and used as the current
conducting channels in the four- and two-contact devices. Analysis of the
resistance depend... | 1102.0961v1 |
2011-05-04 | Sondheimer Oscillation as a Fingerprint of Surface Dirac Fermions | Topological states of matter challenge the paradigm of symmetry breaking,
characterized by gapless boundary modes and protected by the topological
property of the ground state. Recently, angle-resolved photoemission
spectroscopy (ARPES) has revealed that semiconductors of Bi$_{2}$Se$_{3}$ and
Bi$_{2}$Te$_{3}$ belong to... | 1105.0731v1 |
2011-07-05 | Evidence for filamentary superconductivity nucleated at antiphase domain walls in antiferromagnetic CaFe$_2$As$_2$ | Resistivity, magnetization and microscopic $^{75}$As nuclear magnetic
resonance (NMR) measurements in the antiferromagnetically ordered state of the
iron-based superconductor parent material CaFe$_2$As$_2$ exhibit anomalous
features that are consistent with the collective freezing of domain walls.
Below $T^*\approx 10$... | 1107.0904v2 |
2011-08-22 | Ferromagnetic Quantum Criticality in the Quasi-One-Dimensional Heavy Fermion Metal YbNi4P2 | We present a new Kondo-lattice system, YbNi4P2, which is a clean
heavy-fermion metal with a severely reduced ferromagnetic ordering temperature
at T_C=0.17K, evidenced by distinct anomalies in susceptibility, specific-heat,
and resistivity measurements. The ferromagnetic nature of the transition, with
only a small orde... | 1108.4274v1 |
2012-10-18 | Observation of a Large Photo-response in a Single Nanowire (Diameter ~30 nm) of Charge Transfer Complex Cu:TCNQ | We report for the first time large photoresponse in a single NW of the charge
transfer complex Cu:TCNQ. We fabricate a metal-semiconductor-metal device with
a single NW and focus ion beam deposited Pt. We observe large photocurrent even
at zero bias. The spectral dependence of the photoresponse follows the main
absorpt... | 1210.5207v1 |
2013-01-16 | Huge field-effect surface charge injection and conductance modulation in metallic thin films by electrochemical gating | The field-effect technique, popular thanks to its application in common
field-effect transistors, is here applied to metallic thin films by using as a
dielectric a novel polymer electrolyte solution. The maximum injected surface
charge, determined by a suitable modification of a classic method of
electrochemistry calle... | 1301.3769v1 |
2013-02-05 | Scaling of Non-Saturating MR and quantum oscillations in pristine and ion-implanted HOPG | A wide variety of resistive and field dependent behaviors have been
previously observed in both doped and non-doped Highly Oriented Pyrolytic
Graphite (HOPG). We find HOPG samples to vary significantly in their
temperature dependent resistances, even between portions taken from the same
sample, yet they exhibit consist... | 1302.1229v1 |
2013-02-07 | Thermoelectromotive force of hafnium at plastic deformation in regime of creep at temperature of 300 K | The thermoelectromotive force and electrical resistivity of the
polycrystalline hafnium (Hf) with the grain size of 10 {\mu}m during the
process of plastic deformation in the regime of creep at the temperature of 300
K are precisely measured. It is shown that the thermoelectromotive force
depends on the deformation mec... | 1302.1784v1 |
2013-03-11 | Nanobatteries in redox-based resistive switches require extension of memristor theory | Redox-based nanoionic resistive memory cells (ReRAMs) are one of the most
promising emerging nano-devices for future information technology with
applications for memory, logic and neuromorphic computing. Recently, the
serendipitous discovery of the link between ReRAMs and memristors and
memristive devices has further i... | 1303.2589v1 |
2013-07-02 | Non-volatile ferroelastic switching of the Verwey transition and resistivity of epitaxial Fe3O4/PMN-PT (011) | A central goal of electronics based on correlated materials or 'Mottronics'
is the ability to switch between distinct collective states with a control
voltage. Small changes in structure and charge density near a transition can
tip the balance between competing phases, leading to dramatic changes in
electronic and magn... | 1307.0838v1 |
2014-06-01 | Effect of carrier concentration on magnetism and magnetic order in the pyrochlore iridates | We present resistivity, magnetization, and zero field muon spin relaxation
($\mu$SR) data for the pyrochlore iridate materials
Nd$_{2-x}$Ca$_{x}$Ir$_{2}$O$_{7}$ ($x = 0, 0.06$, and $0.10$) and
Sm$_2$Ir$_2$O$_7$. While Nd$_{2}$Ir$_{2}$O$_{7}$ (Nd227) is weakly conducting,
Sm$_{2}$Ir$_{2}$O$_{7}$ (Sm227) has slowly diver... | 1406.0194v1 |
2014-10-07 | Thickness Scaling Effect on Interfacial Barrier and Electrical Contact to Two-Dimensional MoS2 Layers | Understanding the interfacial electrical properties between metallic
electrodes and low dimensional semiconductors is essential for both fundamental
science and practical applications. Here we report the observation of thickness
reduction induced crossover of electrical contact at Au/MoS2 interfaces. For
MoS2 thicker t... | 1410.1943v2 |
2015-03-04 | Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs | Weyl semi-metal is the three dimensional analog of graphene. According to the
quantum field theory, the appearance of Weyl points near the Fermi level will
cause novel transport phenomena related to chiral anomaly. In the present
paper, we report the first experimental evidence for the long-anticipated
negative magneto... | 1503.01304v1 |
2015-03-12 | Shubnikov-de Haas oscillations, weak antilocalization effect and large linear magnetoresistance in the putative topological superconductor LuPdBi | We present electronic transport and magnetic properties of single crystals of
semimetallic half-Heusler phase LuPdBi, having theoretically predicted band
inversion requisite for nontrivial topological properties. The compound
exhibits superconductivity below a critical temperature $T_{\rm c}=1.8\,$K,
with a zero-temper... | 1503.03697v1 |
2015-11-17 | Microstructure, mechanical properties and corrosion of friction stir welded 6061 Aluminum Alloy | The microstructure, mechanical properties, and corrosion behavior of friction
stir welded (FSW) AA6061 aluminum alloys were investigated. Dynamic
recrystallized structures were observed and grain sizes of nugget zone (NZ),
thermomechanically-affected zone (TMAZ), heat-affected zone (HAZ), and base
material (BM) were di... | 1511.05507v1 |
2015-11-20 | Transmission conditions for thin curvilinear close to circular heat-resistant interphases in composite ceramics | This paper considers the problem of heat transfer in a composite ceramic
material where the structural elements are bonded to the matrix via a thin heat
resistant adhesive layer. The layer has the form of a circular ring or close to
it. Using an asymptotic approach, the interphase is modeled by an infinitesimal
imperfe... | 1511.06630v2 |
2015-11-29 | Ultrafast electron-phonon-magnon interactions at noble metal-ferromagnet interfaces | Ultrafast optical excitation of gold-cobalt bilayers triggers the nontrivial
interplay between the electronic, acoustic, and magnetic degrees of freedom.
Laser-heated electrons generated at the gold-air interface diffuse through the
layer of gold and strongly overheat the lattice in cobalt resulting in the
emission of ... | 1511.09060v3 |
2016-04-05 | Gap state charge induced spin-dependent negative differential resistance in tunnel junctions | We propose and demonstrate through first-principles calculation a new
spin-dependent negative differential resistance (NDR) mechanism in magnetic
tunnel junctions (MTJ) with cubic cation disordered crystals (CCDC) AlO$_x$ or
Mg$_{1-x}$Al$_x$O as barrier materials. The CCDC is a class of insulators whose
band gap can be... | 1604.01364v1 |
2016-05-12 | Thermoelectric performance of spin Seebeck effect in Fe3O4/Pt-based thin film heterostructures | We report a systematic study on the thermoelectric performance of spin
Seebeck devices based on Fe3O4/Pt junction systems. We explore two types of
device geometries: a spin Hall thermopile and spin Seebeck multilayer
structures. The spin Hall thermopile increases the sensitivity of the spin
Seebeck effect, while the in... | 1605.03752v1 |
2016-06-15 | Response of Carbon Nanotube (CNT) Ply Subjected to a Pulsed Magnetic Field | In this study, the possible deformation of a single Carbon Nanotube (CNT) ply
subjected to a pulsed magnetic field was investigated. In all tests the
capacitor bank was charged to 6kJ of energy. A Photon Doppler Velocimetry (PDV)
system was used to measure velocity or displacement of the CNT ply during the
experiments.... | 1606.04893v2 |
2016-07-28 | A 3D dislocation dynamics analysis of the size effect on the strength of [111] LiF micropillars at 300K and 600K | The mechanical behavior in compression of [111] LiF micropillars with
diameters in the range 0.5 $\mu$m to 2.0 $\mu$m was analyzed by means of
discrete dislocation dynamics at ambient and elevated temperature. The
dislocation velocity was obtained from the Peach-Koehler force acting on the
dislocation segments from a t... | 1607.08642v1 |
2016-11-20 | Uniform Benchmarking of Low Voltage Van Der Waals FETs | Monolayer MoS2, MoSe2, MoTe2, WS2, WSe2, and black phosphorous field effect
transistors (FETs) operating in the low-voltage (LV) regime (0.3V) with
geometries from the 2019 and 2028 nodes of the 2013 International Technology
Roadmap for Semiconductors (ITRS) are benchmarked along with an ultra-thin-body
Si FET. Current... | 1611.06480v1 |
2016-12-28 | In-plane anisotropy of transport coefficients in the electronic nematic states: Universal origin of the nematicity in Fe-based superconductors | The origin of the electronic nematicity and its remarkable
material-dependence are famous longstanding unsolved issues in Fe-based
superconductors. To attack these issues, we focus on the in-plane anisotropy of
the resistivity: In the nematic state in FeSe, the relation $\rho_x>\rho_y$
holds, where $\rho_{x(y)}$ is the... | 1612.08841v1 |
2017-02-03 | Evolution of structure, magnetism and electronic transport in doped pyrochlore iridate Y$_2$Ir$_{2-x}$Ru$_{x}$O$_7$ | The interplay between spin-orbit coupling (SOC) and electron correlation
($U$) is considered for many exotic phenomena in iridium oxides. We have
investigated the evolution of structural, magnetic and electronic properties in
pyrochlore iridate Y$_2$Ir$_{2-x}$Ru$_{x}$O$_7$ where the substitution of Ru
has been aimed to... | 1702.01023v1 |
2017-02-25 | Compressive mechanical response of graphene foams and their thermal resistance with copper interfaces | We report compressive mechanical response of graphene foams (GFs) and the
thermal resistance ($R_{TIM}$) between copper (Cu) and GFs, where GFs were
prepared by the chemical vapor deposition (CVD) method. We observe that Young's
modulus ($E_{GF}$) and compressive strength ($\sigma_{GF}$) of GFs have a power
law depende... | 1702.07816v1 |
2017-11-22 | Structural properties of Fe/Cu magnetic multilayers: a Monte Carlo approach | Using atomistic Monte Carlo simulations, we investigated the impact of the
interface on the structural properties of iron and copper (Fe/Cu) magnetic
multilayers grown by Vorono\"i diagram. Interest in magnetic multilayers has
recently emerged as they are shown to be promising candidates for magnetic
storage media, mag... | 1711.08508v1 |
2017-11-24 | Inter-layer and Intra-layer Heat Transfer in Bilayer/Monolayer Graphene van der Waals Heterostructure: Is There a Kapitza Resistance Analogous? | Van der Waals heterostructures have exhibited interesting physical
properties. In this paper, heat transfer in hybrid coplanar bilayer/monolayer
(BL-ML) graphene, as a model layered van der Waals heterostructure, was studied
using non-equilibrium molecular dynamics (MD) simulations. Temperature profile
and inter- and i... | 1711.09127v1 |
2018-04-20 | Comparative study of the compensated semi-metals LaBi and LuBi : A first-principles approach | We have investigated the electronic structures of LaBi and LuBi, employing
the full-potential all electron method as implemented in Wien2k. Using this, we
have studied in detail both the bulk and the surface states of these materials.
From our band structure calculations we find that LuBi, like LaBi, is a
compensated s... | 1804.07652v1 |
2014-08-02 | Destroyed quantum Hall effect in graphene with [0001] tilt grain boundaries | The reason why the half-integer quantum Hall effect (QHE) is suppressed in
graphene grown by chemical vapor deposition (CVD) is unclear. We propose that
it might be connected to extended defects in the material and present results
for the quantum Hall effect in graphene with [0001] tilt grain boundaries
connecting oppo... | 1408.0394v1 |
2019-02-21 | Correlation in transport coefficients of hole-doped CuRhO$_2$ single crystals | To clarify the origin of the nontrivial thermoelectric properties observed in
the delafossite oxide CuRhO$_2$ polycrystals, we have performed the systematic
transport measurements on the single-crystalline CuRhO$_2$ samples. In the
parent compound, we find a pronounced peak structure due to a phonon-drag
effect in the ... | 1902.08301v1 |
2020-04-14 | Temperature overshoot as the cause of physical changes in resistive switching devices during electro-formation | Resistive switching devices based on transition metal oxides require
formation of a conductive filament in order for the device to be able to
switch. Such filaments have been proposed to form by the reduction of the oxide
due to application of the electric field, but this report seeks to rebut that
interpretation. Freq... | 2004.06571v1 |
2020-09-04 | Effective Thermal Conductivity of SrBi$_4$Ti$_4$O$_{15}$-La$_{0.7}$Sr$_{0.3}$MnO$_3$ Oxide composite: Role of Particle Size and Interface Thermal Resistance | We present a novel approach to reduce the thermal conductivity ($\kappa$) in
thermoelectric composite materials using acoustic impedance mismatch and the
Debye model. Also, the correlation between interface thermal resistance
(R$_{int}$) and the particle size of the dispersed phase on the k of the
composite is discusse... | 2009.02218v1 |
2022-02-25 | Low-Temperature Thermal Conductivity of CeRh$_{2}$As$_{2}$ | CeRh$_2$As$_2$ is a rare unconventional superconductor ($T_c=0.26$ K)
characterized by two adjacent superconducting phases for a magnetic field $H
\parallel c$-axis of the tetragonal crystal structure. Antiferromagnetic order,
quadrupole-density-wave order ($T_0 = 0.4$ K) and the proximity of this
material to a quantum... | 2202.12667v1 |
2016-03-07 | Pressure-resistant intermediate valence in Kondo insulator SmB6 | Resonant x-ray emission spectroscopy (RXES) was used to determine the
pressure dependence of the f-electron occupancy in the Kondo insulator SmB6.
Applied pressure reduces the f-occupancy, but surprisingly, the material
maintains a significant divalent character up to a pressure of at least 35 GPa.
Thus, the closure of... | 1603.02207v1 |
2017-04-01 | Small-signal model for 2D-material based field-effect transistors targeting radio-frequency applications: the importance of considering non-reciprocal capacitances | A small-signal equivalent circuit of 2D-material based field-effect
transistors is presented. Charge conservation and non-reciprocal capacitances
have been assumed so the model can be used to make reliable predictions at both
device and circuit levels. In this context, explicit and exact analytical
expressions of the m... | 1704.00181v2 |
2017-04-05 | An open-source platform to study uniaxial stress effects on nanoscale devices | We present an automatic measurement platform that enables the
characterization of nanodevices by electrical transport and optical
spectroscopy as a function of uniaxial stress. We provide insights into and
detailed descriptions of the mechanical device, the substrate design and
fabrication, and the instrument control s... | 1704.01394v1 |
2017-08-09 | Contact-Induced Semiconductor-to-Metal Transition in Single-Layer WS$_2$ | Low-resistance ohmic contacts are a challenge for electronic devices based on
two-dimensional materials. We show that an atomically precise junction between
a two-dimensional semiconductor and a metallic contact can lead to a
semiconductor-to-metal transition in the two-dimensional material--a finding
which points the ... | 1708.02799v1 |
2019-08-26 | Local electrodynamics of a disordered conductor model system measured with a microwave impedance microscope | We study the electrodynamic impedance of percolating conductors with a
pre-defined network topology using a scanning microwave impedance microscope
(sMIM) at GHz frequencies. For a given percolation number we observe strong
spatial variations across a sample which correlate with the connected regions
(clusters) in the ... | 1908.09810v1 |
2019-11-30 | Structural relaxation in amorphous materials under cyclic tension-compression loading | The process of structural relaxation in disordered solids subjected to
repeated tension-compression loading is studied using molecular dynamics
simulations. The binary glass is prepared by rapid cooling well below the glass
transition temperature and then periodically strained at constant volume. We
find that the amorp... | 1912.00221v1 |
2021-01-04 | Twin Mechanical Metamaterials | By mimicking the geometrical relation of nano-twin crystals, we propose novel
architected twin mechanical metamaterials (TMMs), which can impede local
shearing band formation under external loading, thus avoiding global
catastrophic failure. The effects of twin-space and twin angle on the
mechanical performance of TMMs... | 2101.00927v1 |
2012-06-04 | Optimal Condition for Strong Terahertz Radiation from Intrinsic Josephson Junctions | In order to enhance the radiation power in terahertz band based on the
intrinsic Josephson junctions of Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ single
crystal, we investigate a long cylindrical sample embedded in a dielectric
material. Tuning the dielectric constant, the radiation power has a maximum
which is achieved when ... | 1206.0516v1 |
2012-06-15 | Breakdown of the interlayer coherence in twisted bilayer graphene | Coherent motion of the electrons in the Bloch states is one of the
fundamental concepts of the charge conduction in solid state physics. In
layered materials, however, such a condition often breaks down for the
interlayer conduction, when the interlayer coupling is significantly reduced by
e.g. large interlayer separat... | 1206.3410v1 |
2015-07-23 | Electronic, magnetic and transport properties of Fe intercalated 2H-TaS$_2$ studied by means of the KKR-CPA method | The electronic, magnetic and transport properties of Fe intercalated
2H-TaS$_2$ have been investigated by means of the Korringa-Kohn-Rostoker (KKR)
method. The non-stoichiometry and disorder in the system has been accounted for
using the Coherent Potential Approximation (CPA) alloy theory. A pronounced
influence of dis... | 1507.06544v1 |
2018-07-18 | Thermoelectric stack sample cooling modification of a commercial atomic force microscopy | Enabling temperature dependent experiments in Atomic Force Microscopy is of
great interest to study materials and surface properties at the nanoscale. By
studying Curie temperature of multiferroic materials, temperature based phase
transition on crystalline structures or resistive switching phenomena are only
a few exa... | 1807.06876v1 |
2019-01-21 | Ferromagnetic Kondo lattice behavior in Ce11Pd4In9 | We report on the low-temperature physical properties of a novel compound
Ce$_{11}$Pd$_4$In$_9$ that crystallizes with the orthorhombic
Nd$_{11}$Pd$_4$In$_9$-type crystal structure (space group $Cmmm$). The compound
exhibits ferromagnetic ordering at $T_{\rm {C}}$ = 18.6 K and an order-order
transition at $T_{\rm {t}}$ ... | 1901.06888v1 |
2019-11-14 | Absence of evidence of spin transport through amorphous Y$_3$Fe$_5$O$_{12}$ | Long-distance transport of spin information in insulators without long-range
magnetic order has been recently reported. Here, we perform a complete
characterization of amorphous Y$_3$Fe$_5$O$_{12}$ (a-YIG) films grown on top of
SiO$_2$. We confirm a clear amorphous structure and paramagnetic behavior of
our a-YIG films... | 1911.06061v2 |
2019-11-15 | Design and Performance of Hafnium Optical and Near-IR Kinetic Inductance Detectors | We report on the design and performance of Microwave Kinetic Inductance
Detectors (MKIDs) sensitive to single photons in the optical to near-infrared
range using hafnium as the sensor material. Our test device had a
superconducting transition temperature of 395 mK and a room temperature normal
state resistivity of 97 $... | 1911.06434v1 |
2020-01-08 | Effect of memory electrical switching in metal/vanadium oxide/silicon structures with VO2 films obtained by the sol-gel method | Electrical switching and rectifying properties of the metal-VO2-Si
structures, on both p-type and n-type silicon, with vanadium dioxide films
obtained by an acetylacetonate sol-gel method, are studied. The switching
effect is shown to be due to the semiconductor-to-metal phase transition (SMPT)
in vanadium dioxide. The... | 2001.03055v1 |
2020-05-24 | Schottky barriers, emission regimes and contact resistances in 2H-1T' MoS$_2$ lateral metal-semiconductor junctions from first-principles | We have studied the finite bias transport properties of a 2H-1T' MoS$_2$
lateral metal-semiconductor (M-S) junction by non-equilibrium Green's functions
calculations, aimed at contacting the 2D channel in a field effect transistor.
Our results indicate that (a) despite the fundamentally different
electrostatics of line... | 2005.11717v1 |
2020-06-12 | Blocking of conducting channels widens window for ferroelectric resistive switching in interface-engineered Hf0.5Zr0.5O2 tunnel devices | Films of Hf0.5Z0.5O2 (HZO) contain a network of grain boundaries. In (111)
HZO epitaxial films on (001) SrTiO3, for instance, twinned orthorhombic (o-HZO)
ferroelectric crystallites coexist with grain boundaries between o-HZO and a
residual paraelectric monoclinic (m-HZO) phase. These grain boundaries
contribute to the... | 2006.07048v1 |
2020-07-09 | Fe3Se4: A Possible Ferrimagnetic Half-Metal? | Half-metallic ferromagnets show 100% spin-polarization at the Fermi level and
are ideal candidates for spintronic applications. Despite the extensive
research in the field, very few materials have been discovered so far. Here we
present results of electronic band structure calculations based on density
functional theor... | 2007.04736v1 |
2020-07-29 | Quasiparticle and Nonquasiparticle Transport in Doped Quantum Paraelectrics | Charge transport in doped quantum paralectrics (QPs) presents a number of
puzzles, including a pronounced $T^2$ regime in the resistivity. We analyze
charge transport in a QP within a model of electrons coupled to a soft
transverse optical (TO) mode via a two-phonon mechanism. For $T$ above the
soft-mode frequency but ... | 2007.14947v2 |
2020-08-06 | Magnetic, transport, and thermal properties of $δ$-phase UZr$_2$ | Alloys of hexagonal $\delta$-phase UZr$_2$ have been synthesized and studied
by means of heat capacity, magnetic susceptibility, magnetization, electrical
resistivity, magnetoresistance, thermoelectric power, thermal conductivity
measurements, for the first time, at temperatures from 1.8 to 300 K and in
magnetic fields... | 2008.02746v1 |
2020-12-29 | Magnetotransport signatures of chiral magnetic anomaly in the half-Heusler phase ScPtBi | Study of magnetotransport properties of ScPtBi revealed simultaneously: a
negative contribution to the longitudinal magnetoresistance, the planar Hall
effect, and distinct angular narrowing of the longitudinal magnetoresistance {
three hallmarks of chiral magnetic anomaly (pumping of axial charge between
Weyl nodes), a... | 2012.14819v2 |
2021-05-28 | Projected mushroom-type phase-change memory | Phase-change memory devices have found applications in in-memory computing
where the physical attributes of these devices are exploited to compute in
place without the need to shuttle data between memory and processing units.
However, non-idealities such as temporal variations in the electrical
resistance have a detrim... | 2105.13693v2 |
2021-08-04 | Current-induced breakdown of the quantum anomalous Hall effect | The quantum anomalous Hall effect (QAHE) realizes dissipationless
longitudinal resistivity and quantized Hall resistance without the need of an
external magnetic field. However, when reducing the device dimensions or
increasing the current density, an abrupt breakdown of the dissipationless
state occurs with a relative... | 2108.02081v1 |
2021-10-08 | Universal Non-Volatile Resistive Switching Behavior in 2D Metal Dichalcogenides Featuring Unique Conductive-Point Random Access Memory Effect | Two-dimensional materials have been discovered to exhibit non-volatile
resistive switching (NVRS) phenomenon. In our work, we reported the universal
NVRS behavior in a dozen metal dichalcogenides, featuring low switching
voltage, large on/off ratio, fast switching speed and forming free
characteristics. A unique conduc... | 2110.03863v1 |
2021-10-27 | Bound on resistivity in flat-band materials due to the quantum metric | The quantum metric is a central quantity of band theory but has so far not
been related to many response coefficients due to its nonclassical origin.
However, within a newly developed Kubo formalism for fast relaxation, the
decomposition of the dc electrical conductivity into both classical (intraband)
and quantum (int... | 2110.14658v3 |
2021-11-22 | First-principles-based screening method for resistivity scaling of anisotropic metals | The resistivity scaling of metals is a crucial limiting factor for further
downscaling of interconnects in nanoelectronic devices that affects signal
delay, heat production, and energy consumption. Here, we generalize a commonly
considered figure of merit for selecting promising candidate metals with highly
anisotropic... | 2111.11121v2 |
2021-12-17 | Nanoscale laser flash measurements of diffuson transport in amorphous Ge and Si | The thermal properties of amorphous materials have attracted significant
attention due to their technological importance in electronic devices.
Additionally, the disorder-induced breakdown of the phonon gas model makes
vibrational transport in amorphous materials a topic of fundamental interest.
In the past few decades... | 2112.09289v2 |
2022-01-06 | Insights to negative differential resistance in \texorpdfstring{MoS\textsubscript{2}}{MoS2} Esaki diodes: a first-principles perspective | \ce{MoS_2} is a two dimensional material with a band gap depending on the
number of layers and tunable by an external electric field. The experimentally
observed intralayer band-to-band tunneling and interlayer band-to-band
tunneling in this material present an opportunity for new electronic
applications in tunnel fiel... | 2201.02178v1 |
2022-05-21 | Increased Phase Coherence Length in a Porous Topological Insulator | The surface area of Bi2Te3 thin films was increased by introducing nanoscale
porosity. Temperature dependent resistivity and magnetotransport measurements
were conducted both on as-grown and porous samples (23 and 70 nm). The
longitudinal resistivity of the porous samples became more metallic, indicating
the increased ... | 2205.10589v1 |
2022-07-11 | Spin-Orbit Proximity Effect in Bi/Co Multilayer: The Role of Interface Scattering | The Spin-Orbit Proximity Effect is the raise of Spin-Orbit Coupling at a
layer near to the interface with a strong spin-orbit material. It has been seen
in several system such as graphene and ferromagnetic layers. The control of the
Spin-Orbit Coupling can be a pathway to discover novel and exotic phases in
superconduc... | 2207.04937v1 |
2022-08-22 | Unified intermediate coupling description of the pseudogap and the strange metal phases of cuprates | A one band Hubbard model with intermediate coupling is shown to describe the
two most important unusual features of a normal state: linear resistivity
strange metal and the pseudogap. Both the spectroscopic and transport
properties of the cuprates are considered on the same footing by employing a
relatively simple post... | 2208.10093v1 |
2022-09-05 | Charge-Density Wave Driven Giant Thermionic-Current Switching in 1T-TaS$_{2}$/2H-TaSe$_{2}$/2H-MoS$_{2}$ Heterostructure | 1T-TaS$_2$ exhibits several resistivity phases due to the modulation of
charge density wave (CDW). The fact that such phase transition can be driven
electrically has attracted a lot of attention in the recent past towards
\emph{active-metal} based electronics. However, the bias-driven resistivity
switching is not very ... | 2209.02024v1 |
2022-11-18 | Pressure-induced superconductivity in PdTeI with quasi-one-dimensional PdTe chains | The quasi-one-dimensional material PdTeI exhibits unusual electronic
transport properties at ambient pressure. Here, we systematically investigate
both the structural and electronic responses of PdTeI to external pressure,
through a combination of electrical transport, synchrotron x-ray diffraction
(XRD), and Raman spe... | 2211.10294v1 |
2023-02-21 | Electron transport and scattering mechanisms in ferromagnetic monolayer Fe$_3$GeTe$_2$ | We study intrinsic charge-carrier scattering mechanisms and determine their
contribution to the transport properties of the two-dimensional ferromagnet
Fe$_3$GeTe$_2$. We use state-of-the-art first-principles calculations combined
with the model approaches to elucidate the role of the electron-phonon and
electron-magno... | 2302.10974v1 |
2023-03-20 | Thermal decomposition of the Kitaev material $α$-RuCl$_3$ and its influence on low-temperature behavior | We explore the effect of heat treatment in argon atmosphere under various
temperatures up to $500^\circ$C on single crystals of $\alpha$-RuCl$_3$ by
study of the mass loss, microprobe energy dispersive x-ray spectroscopy, powder
x-ray diffraction, electrical resistance as well as low-temperature magnetic
susceptibility... | 2303.11308v1 |
2023-09-08 | Re-entrance of resistivity due to the interplay of superconductivity and magnetism in $\ce{Eu_{0.73}Ca_{0.27}(Fe_{0.87}Co_{0.13})2As2}$ | By simultaneous Co and Ca-doping we were able to obtain an
$\ce{EuFe2As2}$-based compound with superconductivity appearing above the
antiferromagnetic order of $\ce{Eu^{2+}}$ magnetic moments. However, as soon as
the antiferromagnetic order appears a re-entrance behavior is observed
\textemdash{} instead of zero resist... | 2309.04308v2 |
2023-10-02 | Crystallographic-dependent bilinear magnetoelectric resistance in a thin WTe$_2$ layer | The recently reported Bilinear Magnetoeletric Resistance (BMR) in novel
materials with rich spin textures, such as bismuth selenide (Bi$_2$Se$_3$) and
tungsten ditelluride (WTe$_2$), opens new possibilities for probing the spin
textures via magneto-transport measurements. By its nature, the BMR effect is
directly linke... | 2310.01058v1 |
2023-11-23 | Helicoidal Transformation Method for Finite Element Models of Twisted Superconductors | This paper deals with the modelling of superconducting and resistive wires
with a helicoidal symmetry, subjected to an external field and a transport
current. Helicoidal structures are three-dimensional, and therefore yield
computationally intensive simulations in a Cartesian coordinate system. We show
in this paper th... | 2311.13919v2 |
2024-03-28 | Single-Crystal Growth and Characterization of Cuprate Superconductor (Hg,Re)Ba$_2$Ca$_2$Cu$_3$O$_{8+δ}$ | We grew (Hg,Re)Ba$_2$Ca$_2$Cu$_3$O$_{8+\delta}$ ((Hg,Re)1223) single crystals
with good reproducibility via the single-step flux method using monoxides as
raw materials. A double-sealing method using a thick-walled quartz tube and a
stainless-steel container was adopted for explosion protection. The maximum
crystal siz... | 2403.19182v1 |
2024-05-01 | Tunable viscous layers in Corbino geometry using density junctions | In sufficiently clean materials where electron-electron interactions are
strong compared to momentum-relaxing scattering processes, electron transport
resembles the flow of a viscous fluid. We study hydrodynamic electron transport
across density interfaces (n-n junctions) in a 2DEG in the Corbino geometry.
From numeric... | 2405.00381v1 |
2003-06-06 | Collective transport and optical absorption near the stripe criticality | Within the stripe quantum critical point scenario for high $T_c$
superconductors, we point out the possible direct contribution of charge
collective fluctuations to the optical absorption and to the d.c. resistivity. | 0306176v1 |
2010-08-09 | Planes, Chains, and Orbits: Quantum Oscillations and High Magnetic Field Heat Capacity in Underdoped YBCO | The underlying physics of the magnetic-field-induced resistive state in high
temperature cuprate superconductors remains a mystery. One interpretation is
that the application of magnetic field destroys the d-wave superconducting gap
to uncover a Fermi surface that behaves like a conventional (i.e.Fermi Liquid)
metal (1... | 1008.1568v1 |
2011-02-09 | Heavy Long-lived Mossbauer State of Niobium | A heavy niobium state showing 1/3 residual resistance is discovered below the
superconducting transition temperature. This niobium sample contains
high-density long-lived Mossbauer excitation. | 1102.1766v2 |
2015-12-21 | Kondo effect in CeX$_{c}$ (X$_{c}$=S, Se, Te) studied by electrical resistivity under high pressure | We have measured the electrical resistivity of cerium monochalcogenices, CeS,
CeSe, and CeTe, under high pressures up to 8 GPa. Pressure dependences of the
antiferromagnetic ordering temperature $T_{N}$, crystal field splitting, and
the $\ln T$ anomaly of the Kondo effect have been studied to cover the whole
region fro... | 1512.06530v1 |
2019-10-01 | High transparency Bi2Se3 topological insulator nanoribbon Josephson junctions with low resistive noise properties | Bi$_2$Se$_3$ nanoribbons, grown by catalyst-free Physical Vapour Deposition,
have been used to fabricate high quality Josephson junctions with Al
superconducting electrodes. The conductance spectra (dI/dV) of the junctions
show clear dip-peak structures characteristic of multiple Andreev reflections.
The temperature de... | 1910.00280v2 |
2017-04-28 | Electric Field Effect in Multilayer Cr2Ge2Te6: a Ferromagnetic Two-Dimensional Material | The emergence of two-dimensional (2D) materials has attracted a great deal of
attention due to their fascinating physical properties and potential
applications for future nanoelectronic devices. Since the first isolation of
graphene, a Dirac material, a large family of new functional 2D materials have
been discovered a... | 1704.08862v1 |
2023-09-26 | The p-Laplace "Signature" for Quasilinear Inverse Problems with Large Boundary Data | This paper is inspired by an imaging problem encountered in the framework of
Electrical Resistance Tomography involving two different materials, one or both
of which are nonlinear. Tomography with nonlinear materials is in the early
stages of developments, although breakthroughs are expected in the
not-too-distant futu... | 2309.15206v1 |
2024-04-23 | An Accessible Instrument for Measuring Soft Material Mechanical Properties | Soft material research has seen significant growth in recent years, with
emerging applications in robotics, electronics, and healthcare diagnostics
where understanding material mechanical response is crucial for precision
design. Traditional methods for measuring nonlinear mechanical properties of
soft materials requir... | 2404.15036v1 |
2018-04-04 | High-Performance Flexible Magnetic Tunnel Junctions for Smart Miniaturized Instruments | Flexible electronics is an emerging field in many applications ranging from
in vivo biomedical devices to wearable smart systems. The capability of
conforming to curved surfaces opens the door to add electronic components to
miniaturized instruments, where size and weight are critical parameters. Given
their prevalence... | 1804.01298v1 |
2017-01-30 | High quality factor manganese-doped aluminum lumped-element kinetic inductance detectors sensitive to frequencies below 100 GHz | Aluminum lumped-element kinetic inductance detectors (LEKIDs) sensitive to
millimeter-wave photons have been shown to exhibit high quality factors, making
them highly sensitive and multiplexable. The superconducting gap of aluminum
limits aluminum LEKIDs to photon frequencies above 100 GHz. Manganese-doped
aluminum (Al... | 1701.08461v2 |
1997-08-21 | Charge Dynamics from Copper Oxide Materials | The charge dynamics of the copper oxide materials in the underdoped and
optimal doped regimes is studied within the framework of the fermion-spin
theory. The conductivity spectrum shows the non-Drude behavior at low energies
and unusual midinfrared peak, and the resistivity exhibits a linear behavior in
the temperature... | 9708165v2 |
2000-07-06 | Scaling of Crack Surfaces and Implications on Fracture Mechanics | The scaling laws describing the roughness development of crack surfaces are
incorporated into the Griffith criterion. We show that, in the case of a
Family-Vicsek scaling, the energy balance leads to a purely elastic brittle
behavior. On the contrary, it appears that an anomalous scaling reflects a
R-curve behavior ass... | 0007100v1 |
2001-01-17 | Negative Magnetoresistance Produced by Hall Fluctuations in a Ferromagnetic Domain Structure | We present a model for a negative magnetoresistance (MR) that would develop
in a material with many ferromagnetic domains even if the individual domains
have no magnetoresistance and even if there is no boundary resistance. The
negative MR is due to a classical current-distortion effect arising from
spatial variations ... | 0101268v2 |
2001-03-06 | Rheology of a confined granular material | We study the rheology of a granular material slowly driven in a confined
geometry. The motion is characterized by a steady sliding with a resistance
force increasing with the driving velocity and the surrounding relative
humidity. For lower driving velocities a transition to stick-slip motion
occurs, exhibiting a block... | 0103143v1 |
2001-11-07 | Crumpling a Thin Sheet | Crumpled sheets have a surprisingly large resistance to further compression.
We have studied the crumpling of thin sheets of Mylar under different loading
conditions. When placed under a fixed compressive force, the size of a crumpled
material decreases logarithmically in time for periods up to three weeks. We
also fin... | 0111095v1 |
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