publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
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2018-03-20 | HPL-GEM: Controlling High Pressure Laminates bulk resistivity with GEMs | We succeeded in modifying and controlling the electrical resistance of a
standard High Pressure Laminate (HPL) panel through the use of a Gas Electron
Multiplier (GEM) foil that has been embedded into the bulk of the HPL plate
itself. Electrical characterizations were made and preliminary data show that
this HPL-GEM em... | 1803.07675v1 |
2024-02-22 | Auxiliary Calculations for Graphene-Based Quantum Hall Arrays Using Partially Recursive Star-Mesh Transformations | A previous mathematical approach adopted for optimizing the number of total
device elements required for obtaining high effective quantized resistances in
graphene-based quantum Hall array devices (QHARS) has been further explored
with partial recursion patterns. Designs would assume the use of epitaxial
graphene eleme... | 2402.14520v1 |
2005-03-31 | Tuning Negative Differential Resistance in a Molecular Film | We have observed tunable negative differential resistance (NDR) in scanning
tunneling spectroscopy measurements of a double layer of C60 molecules on a
metallic surface. Using a simple model we show that the observed NDR behavior
is explained by voltage-dependent changes in the tunneling barrier height. | 0503765v1 |
2006-10-10 | Residual resistivity due to wedge disclination dipoles in metals with rotational plasticity | The residual resistivity $\rho $ in metals caused by wedge disclination
dipoles is studied in the framework of the Drude formula. It is shown that
$\rho\sim L^{-p}$ with $p=3$ for biaxial and $p=2$ for uniaxial dipoles ($L$ is
a size of dipole arm) | 0610258v1 |
2006-10-26 | Two years later--lessons from vortex dynamics in super media | Two years ago the reasons for resistance to the fundamental vortex dynamics
in super media emerged in 1990's were analyzed (cond-mat/0407007). Five
"mistakes" were identified to explain this resistance. Given the current
tremendous interest in vortex dynamics, it would be desirable to provide a
progress report: A surve... | 0610753v1 |
2008-12-16 | Electrical properties of vanadium oxide subject to hydrogen plasma treatment | The effect of doping with hydrogen on the electrical properties of vanadium
oxide is studied. For vanadium oxide films, subject to cold hydrogen plasma
treatment, the temperature dependence of resistance with a maximum at T ~ 100 K
is observed. Also, the dependence of the a.c. resistance on frequency is
studied. A stra... | 0812.2973v1 |
2011-02-07 | Direct correlation between strengthening mechanisms and electrical noise in strained copper wires | We have measured the resistance noise of copper metallic wires during a
tensile stress. The time variation of the main resistance is continuous up to
the wire breakdown, but its fluctuations reveal the intermittent and
heterogeneous character of plastic flow. We show in particular direct
correlations between strengthen... | 1102.1253v1 |
2011-09-05 | Mesoscopic Thermovoltage Measurement Design | Quantitative thermoelectric measurements in the mesoscopic regime require
accurate knowledge of temperature, thermovoltage, and device energy scales. We
consider the effect of a finite load resistance on thermovoltage measurements
of InAs/InP heterostructure nanowires. Load resistance and ac attenuation
distort the mea... | 1109.1009v1 |
2016-07-20 | MegaOhm Extraordinary Hall effect in oxidized CoFeB | We report on development of controllably oxidized CoFeB ferromagnetic films
demonstrating the extraordinary Hall effect (EHE) resistivity exceeding 1 Ohmcm
and magnetic field sensitivity up to 10^6 Ohm/T. Such EHE resistivity is four
orders of magnitude higher than previously observed in ferromagnetic materials,
while ... | 1607.05923v1 |
1995-12-18 | Anisotropic Localization Effect in Layered Materials | We investigate localization properties in the highly anisotropic and
intrinsically disordered layered material, which is analogous to high-Tc
cuprates. By varying the anisotropy of the system which is parameterized by the
interlayer hopping $tp$, we find a crossover from two-dimensional (2D) to
three-dimensional (3D) b... | 9512133v1 |
2008-03-20 | Graphene-Based Liquid Crystal Device | Graphene is only one atom thick, optically transparent, chemically inert and
an excellent conductor. These properties seem to make this material an
excellent candidate for applications in various photonic devices that require
conducting but transparent thin films. In this letter we demonstrate liquid
crystal devices wi... | 0803.3031v1 |
2008-10-02 | Carrier doping to pseudo-low-dimensional compound La2RuO5 | Hole carrier doping has been tried to pseudo-low-dimensional material La2RuO5
by substituting La3+ with Cd2+. Single phased samples of La2-xCdxRuO5 with x up
to 0.5 have been successfully obtained and also high pressure O2 annealing has
been performed to the x=0.5 sample. Although the formal ionic state of Ru is
expect... | 0810.0350v1 |
2008-12-15 | High-temperature oxygen non-stoichiometry, conductivity and structure in strontium-rich nickelates La2-xSrxNiO4-δ(x = 1 and 1.4) | Oxygen nonstoichiometry, electrical conductivity and thermal expansion of La2
xSrxNiO4-\delta phases with high levels of strontium substitution (1 =< x =<
1.4) have been investigated in air and oxygen atmosphere in the temperature
range 20-1050 degrees C. These phases retain the K2NiF4-type structure of
La2NiO4 (tetrag... | 0812.2747v1 |
2009-12-08 | The Deposition of High-Quality HfO2 on Graphene and the Effect of Remote Oxide Phonon Scattering | We demonstrate the atomic layer deposition of high-quality HfO2 film on
graphene and report the magnitude of remote oxide phonon (ROP) scattering in
dual-oxide graphene transistors. Top gates with 30 nm HfO2 oxide layer exhibit
excellent doping capacity of greater than 1.5x10^(13)/cm^(2). The carrier
mobility in HfO2-c... | 0912.1378v2 |
2013-12-21 | Near-Field Microwave Magnetic Nanoscopy of Superconducting Radio Frequency Cavity Materials | A localized measurement of the RF critical field on superconducting radio
frequency (SRF) cavity materials is a key step to identify specific defects
that produce quenches of SRF cavities. Two new measurements are performed to
demonstrate these capabilities with a novel near-field scanning probe microwave
microscope. T... | 1312.6257v1 |
2014-11-14 | Characterization of TiAlSiON Coatings Deposited by Plasma Enhanced Magnetron Sputtering: XRD, XPS, and DFT Studies | The results of characterization of TiAlSiON hard coatings deposited on
ferric-chromium AISI 430 stainless steel by plasma enhanced magnetron
sputtering are presented. The coating with maximum hardness (of 45 GPa) was
obtained at the following optimal values of elemental concentrations: Si ~5
at.%, Al ~15 at.%, and Ti ~... | 1411.3859v1 |
2015-05-25 | Cluster spin-glass ground state in quasi-one-dimensional KCr$_{3}$As$_{3}$ | We report structural and physical properties of a new quasi-one-dimensional
Cr-based compound, KCr$_{3}$As$_{3}$, which is prepared by potassium
deintercalation from the superconductive K$_{2}$Cr$_{3}$As$_{3}$.
KCr$_{3}$As$_{3}$ adopts the TlFe$_{3}$Te$_{3}$-type structure with space group
$P6_{3}$/$m$ (No. 176). The h... | 1505.06525v1 |
2017-12-29 | Structural transformations in porous glasses under mechanical loading. II. Compression | The role of porous structure and glass density in response to compressive
deformation of amorphous materials is investigated via molecular dynamics
simulations. The disordered, porous structures were prepared by quenching a
high-temperature binary mixture below the glass transition into the phase
coexistence region. Wi... | 1712.10265v1 |
2018-02-07 | Stability of boron-doped graphene/copper interface: DFT, XPS and OSEE studies | Two different types of boron-doped graphene/copper interfaces synthesized
using two different flow rates of Ar through the bubbler containing the boron
source were studied. X-ray photoelectron spectra (XPS) and optically stimulated
electron emission (OSEE) measurements have demonstrated that boron-doped
graphene coatin... | 1802.02345v1 |
2018-06-11 | Uncovering electron scattering mechanisms in NiFeCoCrMn derived concentrated solid solution and high entropy alloys | Whilst it has long been known that disorder profoundly affects transport
properties, recent measurements on a series of solid solution 3d-transition
metal alloys reveal two orders of magnitude variations in the residual
resistivity. Using ab-initio methods, we demonstrate that, while the carrier
density of all alloys i... | 1806.03785v2 |
2018-11-26 | Engineering Large Anisotropic Magnetoresistance in La0.7Sr0.3MnO3 Films at Room Temperature | The magnetoresistance (MR) effect is widely employed in technologies that
pervade our world from magnetic reading heads to sensors. Diverse contributions
to MR, such as anisotropic, giant, tunnel, colossal, and spin-Hall, are
revealed in materials depending on the specific system and measuring
configuration. Half-metal... | 1811.10301v1 |
2017-03-23 | Unconventional Large Linear Magnetoresistance in Cu$_{2-x}$Te | We report a large linear magnetoresistance in Cu$_{2-x}$Te, reaching
$\Delta\rho/\rho(0)$ = 250\% at 2 K in a 9 T field. This is observed for
samples with $x$ in the range 0.13 to 0.22, and the results are comparable to
the effects observed in Ag$_2 X$ materials, although in this case the results
appear for a much wide... | 1703.07945v1 |
2019-02-14 | One-dimensional edge contacts to a monolayer semiconductor | Integration of electrical contacts into van der Waals (vdW) heterostructures
is critical for realizing electronic and optoelectronic functionalities.
However, to date no scalable methodology for gaining electrical access to
buried monolayer two-dimensional (2D) semiconductors exists. Here we report
viable edge contact ... | 1902.05506v3 |
2019-02-20 | Vortex pinning and flux flow microwave studies of coated conductors | Demanding microwave applications in a magnetic field require the material
optimization not only in zero-field but, more important, in the in-field flux
motion dominated regime. However, the effect of artificial pinning centers
(APC) remains unclear at high frequency. Moreover, in coated conductors the
evaluation of the... | 1902.07589v1 |
2020-02-25 | Shear thickening and jamming of dense suspensions: the "roll" of friction | Particle-based simulations of discontinuous shear thickening (DST) and shear
jamming (SJ) suspensions are used to study the role of stress-activated
constraints, with an emphasis on resistance to gear-like rolling. Rolling
friction decreases the volume fraction required for DST and SJ, in quantitative
agreement with re... | 2002.10996v2 |
2020-09-16 | Superconductivity in CuAl2-type Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2 with a high-entropy-alloy transition metal site | Research on high-entropy-alloy (HEA) superconductors is a growing field in
material science. In this study, we explored new HEA-type superconductors and
discovered a CuAl2-type superconductor Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2 with a
HEA-type transition metal site. A superconducting transition was observed at
8.0 K after ele... | 2009.07548v3 |
2017-05-17 | High Thermoelectric Figure of Merit by Resonant Dopant in Half-Heusler Alloys | Half-Heusler alloys have been one of the benchmark high temperature
thermoelectric materials owing to their thermal stability and promising figure
of merit ZT. Simonson et al. early showed that small amounts of vanadium doped
in Hf0.75Zr0.25NiSn enhanced the Seebeck coefficient and correlated the change
with the increa... | 1705.06100v1 |
2019-03-12 | Superconductivity behavior in epitaxial TiN films points at surface magnetic disorder | We analyze the evolution of the normal and superconducting electronic
properties in epitaxial TiN films, characterized by high Ioffe-Regel parameter
values, as a function of the film thickness. As the film thickness decreases,
we observe an increase of in the residual resistivity, which becomes dominated
by diffusive s... | 1903.05009v3 |
2019-12-30 | Pinning Dislocations in Colloidal Crystals with Active Particles that Seek Stacking Faults | There is growing interest in functional, adaptive devices built from
colloidal subunits of micron size or smaller. A colloidal material with dynamic
mechanical properties could facilitate such microrobotic machines. Here we
study via computer simulation how active interstitial particles in small
quantities can be used ... | 1912.12792v1 |
2015-06-16 | Correlation of Crystal Quality and Extreme Magnetoresistance of WTe$_2$ | High quality single crystals of WTe$_2$ were grown using a Te flux followed
by a cleaning step involving self-vapor transport. The method is reproducible
and yields consistently higher quality single crystals than are typically
obtained via halide assisted vapor transport methods. Magnetoresistance
(MR)values at 9 Tesl... | 1506.04823v1 |
2018-12-18 | The role of β-titanium ligaments in the deformation of dual phase titanium alloys | Multiphase titanium alloys are critical materials in high value engineering
components, for instance in aero engines. Microstructural complexity is
exploited through interface engineering during mechanical processing to realise
significant improvements in fatigue and fracture resistance and strength. In
this work, we e... | 1812.07250v2 |
2019-10-14 | Investigation of nitrogen polar p-type doped GaN/AlxGa(1-x)N superlattices for applications in wide-bandgap p-type field effect transistors | In this study the MOCVD growth and electrical properties of N-polar
modulation doped p-AlGaN/GaN superlattices (SLs) were investigated. Hole sheet
charge density and mobility were studied as a function of the concentration of
the p-type dopant Mg in the SL and the number of SL periods. Room temperature
Hall measurement... | 1910.06421v1 |
2019-11-27 | Enhancement of the electronic thermoelectric properties of bulk strained silicon-germanium alloys using the scattering relaxation times from first principles | We use first-principles electronic structure methods to calculate the
electronic thermoelectric properties (i.e. due to electronic transport only) of
single-crystalline bulk $n$-type silicon-germanium alloys vs Ge composition,
temperature, doping concentration and strain. We find excellent agreement to
available experi... | 1911.12149v1 |
2020-10-01 | High magnetic field spin-valley-split Shubnikov-de Haas oscillations in a WSe$_2$ monolayer | We study Shubnikov-de Haas oscillations in a p-type WSe$_2$ monolayer under
very high magnetic field. The oscillation pattern is complex due to a large
spin and valley splitting, in the non-fully-resolved Landau level regime. Our
experimental data can be reproduced with a model in which the main parameter is
the ratio ... | 2010.00510v1 |
2020-11-27 | High-pressure effects on superconducting properties and crystal structure of Bi-based layered superconductor La2O2Bi3Ag0.6Sn0.4S6 | The effects of pressure on the superconducting properties of a Bi-based
layered superconductor La2O2Bi3Ag0.6Sn0.4S6, which possesses a four-layer-type
conducting layer, have been studied through the electrical resistance and
magnetic susceptibility measurements. The crystal structure under pressure was
examined using s... | 2011.13532v1 |
2021-02-01 | Liquefaction-induced Plasticity from Entropy-boosted Amorphous Ceramics | Ceramics are easy to break, and very few generic mechanisms are available for
improving their mechanical properties, e.g., the 1975-discovered anti-fracture
mechanism is strictly limited to zirconia and hafnia. Here we report a general
mechanism for achieving high plasticity through liquefaction of ceramics. We
further... | 2102.00802v1 |
2021-02-13 | Mechanical Performance of 3D Printed Interpenetrating Phase Composites with Spinodal Topologies | The mechanical response of interpenetrating phase composites (IPCs) with
stochastic spinodal topologies is investigated experimentally and numerically.
Model polymeric systems are fabricated by Polyjet multi-material printing, with
the reinforcing phase taking the topology of a spinodal shell, and the
remaining volume ... | 2102.06707v1 |
2021-07-22 | Anomalous High-Field Magnetotransport in CaFeAsF due to the Quantum Hall Effect | CaFeAsF is an iron-based superconductor parent compound whose Fermi surface
is quasi-two dimensional, composed of Dirac-electron and Schr\"odinger-hole
cylinders elongated along the $c$ axis. We measured the longitudinal and Hall
resistivities in CaFeAsF with the electrical current in the $ab$ plane in
magnetic fields ... | 2107.10460v4 |
2022-01-08 | Atomic disorder and Berry phase driven anomalous Hall effect in Co2FeAl Heusler compound | Co2-based Heusler compounds are the promising materials for the spintronics
application due to their high Curie temperature, large spin-polarization, large
magnetization density, and exotic transport properties. In the present
manuscript, we report the anomalous Hall effect (AHE) in a polycrystalline
Co2FeAl Heusler co... | 2201.02864v1 |
2022-07-15 | High power density energy harvesting devices based on the anomalous Nernst effect of Co/Pt magnetic multilayers | The anomalous Nernst effect (ANE) is a thermomagnetic phenomenon with
potential applications in thermal energy harvesting. While many recent works
studied the approaches to increase the ANE coefficient of materials, relatively
little effort was devoted to increasing the power supplied by the effect. Here
we demonstrate... | 2207.07526v2 |
2023-02-20 | A High Throughput Aqueous Passivation Testing Methodology for Compositionally Complex Alloys using Scanning Droplet Cell | Compositionally complex alloy systems containing more than five principal
elements allow exploring a wide range of compositions, processing, and
structural variables with the hope for identifying unique properties. Such
opportunities also apply to designing materials for improved corrosion
resistance, regulated by a se... | 2302.09804v4 |
2023-09-29 | Transforming Materials Discovery for Artificial Photosynthesis: High-Throughput Screening of Earth-Abundant Semiconductors | We present a highly efficient workflow for designing semiconductor structures
with specific physical properties, which can be utilized for a range of
applications, including photocatalytic water splitting. Our algorithm generates
candidate structures composed of earth-abundant elements that exhibit optimal
light-trappi... | 2310.00118v1 |
2023-10-28 | Ultralong-term high-density data storage with atomic defects in SiC | There is an urgent need to increase the global data storage capacity, as
current approaches lag behind the exponential growth of data generation driven
by the Internet, social media and cloud technologies. In addition to increasing
storage density, new solutions should provide long-term data archiving that
goes far bey... | 2310.18843v1 |
2003-04-30 | Pulsed Laser Deposition of epitaxial titanium diboride thin films | Epitaxial titanium diboride thin films have been deposited on sapphire
substrates by Pulsed Laser Ablation technique. Structural properties of the
films have been studied during the growth by Reflection High Energy Electron
Diffraction (RHEED) and ex-situ by means of X-ray diffraction techniques; both
kinds of measurem... | 0304680v1 |
2016-02-19 | Magnetic anisotropy of large floating-zone-grown single-crystals of SrRuO3 | SrRuO3 is a highly interesting material due to its anomalous-metal properties
related with ferromagnetism and its relevance as conductive perovskite layer or
substrate in heterostructure devices. We have used optical floating zone
technique in an infrared image furnace to grow large single crystals of SrRuO3
with volum... | 1602.06171v2 |
2014-08-11 | High spin polarization in CoFeMnGe quaternary Heusler alloy | We report the structure, magnetic property and spin polarization of CoFeMnGe
equiatomic quaternary Heusler alloy. The alloy was found to exist in the L21
structure with considerable amount of DO3 disorder. Thermal analysis result
indicated the Curie temperature is about 711K without any other phase
transformation up to... | 1408.2408v2 |
2019-04-01 | Quantum transport in high-quality shallow InSb quantum wells | InSb is one of the promising candidates to realize a topological state
through proximity induced superconductivity in a material with strong
spin-orbit interactions. In two-dimensional systems, thin barriers are needed
to allow strong coupling between superconductors and semiconductors. However,
it is still challenging... | 1904.00828v2 |
2021-06-28 | Topological Anderson Insulator in cation-disordered Cu2ZnSnS4 | Abstract: Using ab initio calculations supported by experimental transport
measurements, we present the first credible candidate for the realization of a
disorder-induced Topological Anderson Insulator in a real material system. High
energy reactive ball-milling produces a polymorph of Cu2ZnSnS4 with high cation
disord... | 2106.14714v1 |
2023-12-11 | Impersonating a Superconductor: High-Pressure BaCoO$_3$, an Insulating Ferromagnet | We report the high-pressure synthesis (6 GPa, 1200 $^{\circ}$C) and ambient
pressure characterization of hexagonal HP-BaCoO$_3$. The material (with the 2H
crystal structure) has a short intrachain Co-Co distance of about 2.07
$\text{\r{A}}$. Our magnetization investigation revealed robust diamagnetic
behavior below app... | 2312.14955v1 |
2022-10-03 | The impact of resistive electric fields on particle acceleration in reconnection layers | In the context of particle acceleration in high-energy astrophysical
environments featuring magnetic reconnection, the importance of the resistive
term of the electric field compared to the convective one is still under
debate. In this work, we present a quantitative analysis through 2D
magnetohydrodynamic numerical si... | 2210.01113v1 |
2024-01-31 | Investigation of Microstructure and Corrosion Resistance of Ti-Al-V Titanium Alloys Obtained by Spark Plasma Sintering | The research results of the microstructure and corrosion resistance of Ti and
Ti-Al-V Russian industrial titanium alloys obtained by spark plasma sintering
(SPS) are described. Investigations of the microstructure, phase composition,
hardness, tensile strength, electrochemical corrosion resistance and hot salt
corrosio... | 2401.17941v1 |
2003-02-01 | High-Temperature Hall Effect in Ga(1-x)Mn(x)As | The temperature dependence of the Hall coefficient of a series of
ferromagnetic Ga(1-x)Mn(x)As samples is measured in the temperature range 80K <
T < 500K. We model the Hall coefficient assuming a magnetic susceptibility
given by the Curie-Weiss law, a spontaneous Hall coefficient proportional to
rho_xx^2(T), and inclu... | 0302013v2 |
2007-06-15 | Growth mechanisms and structure of fullerene-like carbon-based thin films: superelastic materials for tribological applications | In this chapter we review our findings on the bonding structure and growth
mechanisms of carbon-based thin solid films with fullerene-like (FL)
microstructure. The so-called FL arrangements arise from the curvature and
cross-linking of basal planes in graphitic-like structures, partially
resembling that of molecular fu... | 0706.2258v1 |
2013-07-08 | Significant ZT Enhancement in p-type Ti(Co,Fe)Sb-InSb Nanocomposites via a Synergistic High Mobility Electron Injection Energy filtering and Boundary Scattering Approach | It has been demonstrated that InSb nanoinclusions, which are formed in situ,
can simultaneously improve all three individual thermoelectric properties of
the n-type half Heusler compound (Ti,Zr,Hf)(Co,Ni)Sb [Xie et al., Acta Mater.
58, 4795 (2010)]. In the work presented herein, we have adopted the same
approach to the... | 1307.2160v1 |
2018-06-21 | Planar Hall effect in type II Dirac semimetal VAl$_{3}$ | The study of electronic properties in topological systems is one of the most
fascinating topics in condensed matter physics, which has generated enormous
interests in recent times. New materials are frequently being proposed and
investigated to identify their non-trivial band structure. While sophisticated
techniques s... | 1806.08287v1 |
2017-08-17 | Separation of Electron and Hole Dynamics in the Semimetal LaSb | We report investigations on the magnetotransport in LaSb, which exhibits
extremely large magnetoresistance (XMR). Foremost, we demonstrate that the
resistivity plateau can be explained without invoking topological protection.
We then determine the Fermi surface from Shubnikov - de Haas (SdH) quantum
oscillation measure... | 1708.05416v2 |
2019-01-21 | Solid-State Thermal Energy Storage Using Reversible Martensitic Transformations | The identification and use of reversible Martensitic transformations,
typically described as shape memory transformations, as a new class of
solid-solid phase change material is experimentally demonstrated here for the
first time. To prove this claim, time-domain thermoreflectance,
frequency-domain thermoreflectance, a... | 1901.06990v1 |
2020-11-30 | Discovery of carbon-based strongest and hardest amorphous material | Carbon is likely the most fascinating element of the periodic table because
of the diversity of its allotropes stemming from its variable (sp, sp2, and
sp3) bonding motifs. Exploration of new forms of carbon has been an eternal
theme of contemporary scientific research. Here we report on novel amorphous
carbon phases c... | 2011.14819v2 |
2021-12-20 | Ultrafast Multi-Shot Ablation and Defect Generation in Monolayer Transition Metal Dichalcogenides | Transition metal dichalcogenides are known to possess large optical
nonlinearities and driving these materials at high intensities is desirable for
many applications. Understanding their optical responses under repetitive
intense excitation is essential to improve the performance limit of these
strong-field devices and... | 2112.10743v1 |
2024-03-19 | Electrical transport crossover and large magnetoresistance in selenium deficient van der Waals HfSe2-x | Transition metal dichalcogenides have received much attention in the past
decade not only due to the new fundamental physics, but also due to the
emergent applications in these materials. Currently chalcogenide deficiencies
in TMDs are commonly believed either during the high temperature growth
procedure or in the nano... | 2403.12430v1 |
2018-09-27 | Granular aluminum: A superconducting material for high impedance quantum circuits | Superconducting quantum information processing machines are predominantly
based on microwave circuits with relatively low characteristic impedance, of
about 100 Ohm, and small anharmonicity, which can limit their coherence and
logic gate fidelity. A promising alternative are circuits based on so-called
superinductors, ... | 1809.10646v1 |
2012-11-29 | Effects of Resistivity on Magnetized Core-Collapse Supernovae | We studied roles of a turbulent resistivity in the core-collapse of a
strongly magnetized massive star, carrying out 2D-resistive-MHD simulations.
The three cases with different initial strengths of magnetic field and rotation
are investigated; 1. strongly magnetized rotating core; 2.moderately magnetized
rotating core... | 1211.6817v2 |
2019-04-18 | Scaling-up atomically thin coplanar semiconductor-metal circuitry via phase engineered chemical assembly | Two-dimensional (2D) layered semiconductors, with their ultimate atomic
thickness, have shown promise to scale down transistors for modern integrated
circuitry. However, the electrical contacts that connect these materials with
external bulky metals are usually unsatisfactory, which limits the transistor
performance. R... | 1904.08545v1 |
2023-09-27 | High-Resolution Full-field Structural Microscopy of the Voltage Induced Filament Formation in Neuromorphic Devices | Neuromorphic functionalities in memristive devices are commonly associated
with the ability to electrically create local conductive pathways by resistive
switching. The archetypal correlated material, VO2, has been intensively
studied for its complex electronic and structural phase transition as well as
its filament fo... | 2309.15712v1 |
2020-12-23 | Separated transport relaxation scales and interband scattering in SrRuO$_3$, CaRuO$_3$, and Sr$_2$RuO$_4$ thin films | The anomalous charge transport observed in some strongly correlated metals
raises questions as to the universal applicability of Landau Fermi liquid
theory. The coherence temperature $T_{FL}$ for normal metals is usually taken
to be the temperature below which $T^2$ is observed in the resistivity. Below
this temperatur... | 2012.12800v1 |
2016-05-09 | An analytical model for the influence of contact resistance on thermoelectric efficiency | An analytical model is presented that can account for both electrical and hot
and cold thermal contact resistances when calculating the efficiency of a
thermoelectric generator. The model is compared to a numerical model of a
thermoelectric leg, for 16 different thermoelectric materials, as well as the
analytical model... | 1605.03565v1 |
2017-12-22 | Magnetoresistance in YBi and LuBi semimetals due to nearly perfect carrier compensation | Monobismuthides of yttrium and lutetium are shown as new representatives of
materials which exhibit extreme magnetoresistance and magnetic-field-induced
resistivity plateau. At low temperatures and in magnetic field of 9T the
magnetoresistance attains the order of magnitude of 10,000% and 1,000%, on YBi
and LuBi, respe... | 1712.08433v3 |
2020-05-07 | Origin of the Significant Impact of Ta on the Creep Resistance of FeCrNi Alloys | Heat resistant FeCrNi alloys are widely used in the petrochemical industry
because they exhibit a unique combination of creep and oxidation resistance at
temperatures exceeding 900$^\circ$C. Their creep properties are often optimized
by micro-additions of carbide forming elements. In the present work, the
influence of ... | 2005.03309v1 |
2022-10-07 | Radiation-resistant aluminium alloy for space missions in the extreme environment of the solar system | Future human-based exploration of our solar system requires the invention of
materials that can resist harsh environments. Age-hardenable aluminium alloys
would be attractive candidates for structural components in long-distance
spacecrafts, but their radiation resistance to solar energetic particles is
insufficient. C... | 2210.03397v3 |
2022-11-22 | Optical properties and corrosion resistance of Ti2AlC, Ti3AlC2, and Cr2AlC as candidates for Concentrated Solar Power receivers | New generation concentrated solar power (CSP) plants require new solar
receiver materials with selective optical properties and excellent corrosion
resistance against molten salts. MAX phases are promising materials for CSP
applications due to their optical properties and resistance to thermal shocks.
Herein, we report... | 2211.12251v2 |
2020-01-16 | Social Engineering Resistant 2FA | Attackers increasingly, and with high success rates, use social engineering
techniques to circumvent second factor authentication (2FA) technologies,
compromise user accounts and sidestep fraud detection technologies. We
introduce a social engineering resistant approach that we term device-aware
2FA, to replace the use... | 2001.06075v1 |
2019-01-12 | Surface impedance measurements on Nb$_{3}$Sn at high magnetic fields | Nb$_{3}$Sn is a superconductor of great relevance for perspective RF
applications. We present for the first time surface impedance $Z_s$
measurements at 15 GHz and low RF field amplitude on Nb$_{3}$Sn in high
magnetic fields up to 12 T, with the aim of increasing the knowledge of
Nb$_{3}$Sn behavior in such conditions.... | 1901.03819v1 |
2020-08-25 | Observation of High Harmonics of the Cyclotron Resonance in Microwave Transmission of a High-Mobility Two-Dimensional Electron System | We report an observation of magnetooscillations of the microwave power
transmitted through the high mobility two-dimensional electron system hosted by
a GaAs quantum well. The oscillations reflect an enhanced absorption of
radiation at high harmonics of the cyclotron resonance and follow
simultaneously measured microwa... | 2008.11114v1 |
2021-09-20 | Giant anomalous Nernst signal in the antiferromagnet YbMnBi2 | Searching for a high anomalous Nernst effect (ANE) is crucial for
thermoelectric energy conversion applications because the associated unique
transverse geometry facilitates module fabrication. Topological ferromagnets
with large Berry curvatures show high ANEs; however, they face drawbacks such
as strong magnetic dist... | 2109.09382v1 |
2022-02-09 | Low energy switching of phase change materials using a 2D thermal boundary layer | The switchable optical and electrical properties of phase change materials
(PCMs) are finding new applications beyond data storage in reconfigurable
photonic devices. However, high power heat pulses are needed to melt-quench the
material from crystalline to amorphous. This is especially true in silicon
photonics, where... | 2202.04699v1 |
2008-06-27 | Electron pockets in the Fermi surface of hole-doped high-Tc superconductors | High-temperature superconductivity occurs as copper oxides are chemically
tuned to have a carrier concentration intermediate between their metallic state
at high doping and their insulating state at zero doping. The underlying
evolution of the electron system in the absence of superconductivity is still
unclear and a q... | 0806.4621v1 |
2008-11-19 | Elucidation of the origins of HTSC transport behaviour and quantum oscillations | A detailed exposition is made of recent transport and 'quantum oscillation'
results from HTSC systems covering the full range from overdoped to underdoped
material. This now very extensive and high quality data set is interpreted here
within the framework developed by the author of local pairs and boson-fermion
resonan... | 0811.3096v2 |
2011-11-04 | Local Structure of the Superconductor K0.8Fe1.6+xSe2: Evidence of Large Structural Disorder | The local structure of superconducting single crystals of K0.8Fe1.6+xSe2 with
Tc = 32.6 K was studied by x-ray absorption spectroscopy. Near-edge spectra
reveal that the average valence of Fe is 2+. The room temperature structure
about the Fe, K and Se sites was examined by iron, selenium and potassium
K-edge measureme... | 1111.1026v1 |
2017-02-14 | Pressure-induced metallization and superconducting phase in ReS2 | Among the family of TMDs, ReS2 takes a special position, which crystalizes in
a unique distorted low-symmetry structure at ambient conditions. The interlayer
interaction in ReS2 is rather weak, thus its bulk properties are similar to
that of monolayer. However, how does compression change its structure and
electronic p... | 1702.04061v1 |
2018-05-04 | Silicon Oxide Electron-Emitting Nanodiodes | Electrically driven on-chip electron sources that do not need to be heated
have been long pursued because the current thermionic electron sources show the
problems of high power consumption, slow temporal response, bulky size, etc.,
but their realization remains challenging. Here we show that a nanogap formed
by two el... | 1805.01602v1 |
2019-11-04 | Enhanced upper critical field in Co-doped Ba122 superconductors by lattice defect tuning | Nanoscale defects in superconductors play a dominant role in enhancing
superconducting properties through electron scattering, modulation of coherence
length, and correlation with quantized magnetic flux. For iron-based
superconductors (IBSCs) that are expected to be employed in high-field magnetic
applications, a fund... | 1911.01080v1 |
2019-11-07 | Chemical manipulation of hydrogen induced high p-type and n-type conductivity in Ga2O3 | Advancement of optoelectronic and high-power devices is tied to the
development of wide band gap materials with excellent transport properties.
However, bipolar doping (n-type and p-type doping) and realizing high carrier
density while maintaining good mobility have been big challenges in wide band
gap materials. Here ... | 1911.02717v1 |
2021-03-01 | Absence of magnetic evidence for superconductivity in hydrides under high pressure | It is generally believed that magnetization measurements on sulfur hydride
under high pressure performed in 2015 [1] provided "final convincing evidence
of superconductivity" [2] in that material, in agreement with theoretical
predictions [3,4]. Supported by this precedent, drops in resistance that were
later observed ... | 2103.00701v3 |
2021-08-15 | High power Figure-of-Merit, 10.6-kV AlGaN/GaN lateral Schottky barrier diode with single channel and sub-100-μm anode-to-cathode spacing | GaN-based lateral Schottky diodes (SBDs) have attracted great attention for
high-power applications due to its combined high electron mobility and large
critical breakdown field. However, the breakdown voltage (BV) of the SBDs are
far from exploiting the material advantages of GaN at present, limiting the
desire to use... | 2108.06679v1 |
2023-11-14 | A New Look at Calcium Digermanide CaGe$_2$: A High-Performing Semimetal Transparent Conducting Material for Ge Optoelectronics | Following a recently manifested guide of how to team up infrared transparency
and high electrical conductivity within semimetal materials [C. Cui $et$ $al.$
Prog. Mater. Sci. 2023, 136, 101112], we evaluate an applicability of the
calcium digermanide (CaGe$_2$) thin film electrodes for the advanced Ge-based
optical dev... | 2311.07903v1 |
2023-12-14 | Unlocking High Performance, Ultra-Low Power Van der Waals Transistors: Towards Back-End-of-Line In-Sensor Machine Vision Applications | Recent reports on machine learning (ML) and machine vision (MV) devices have
demonstrated the potentials of 2D materials and devices. Yet, scalable 2D
devices are being challenged by contact resistance and Fermi Level Pinning
(FLP), power consumption, and low-cost CMOS compatible lithography processes.
To enable CMOS+2... | 2312.08634v1 |
2006-08-31 | Systematic study of disorder induced by neutron irradiation in MgB2 thin films | The effects of neutron irradiation on normal state and superconducting
properties of epitaxial magnesium diboride thin films are studied up to
fluences of 1020 cm-2. All the properties of the films change systematically
upon irradiation. Critical temperature is suppressed and, at the highest
fluence, no superconducting... | 0608706v2 |
2001-11-30 | Effects of Bulk and Surface Conductivity on the Performance of CdZnTe Pixel Detectors | We studied the effects of bulk and surface conductivity on the performance of
high-resistivity CdZnTe (CZT) pixel detectors with Pt contacts. We emphasize
the difference in mechanisms of the bulk and surface conductivity as indicated
by their different temperature behaviors. In addition, the existence of a thin
(10-100... | 0112001v1 |
2008-10-23 | Thermopower across the pseudogap critical point of La(1.6-x)Nd(0.4)Sr(x)CuO(4): Evidence for a quantum critical point in a hole-doped high-Tc superconductor | The thermopower S of the high-Tc superconductor La(1.6-x)Nd(0.4)Sr(x)CuO(4)
was measured as a function of temperature T near its pseudogap critical point,
the critical hole doping p* where the pseudogap temperature T* goes to zero.
Just above p*, S/T varies as ln(1/T) over a decade of temperature. Below p*,
S/T undergo... | 0810.4280v2 |
2009-09-23 | Zooming on the Quantum Critical Point in Nd-LSCO | Recent studies of the high-Tc superconductor La_(1.6-x)Nd_(0.4)Sr_(x)CuO_(4)
(Nd-LSCO) have found a linear-T in-plane resistivity rho_(ab) and a logarithmic
temperature dependence of the thermopower S / T at a hole doping p = 0.24, and
a Fermi-surface reconstruction just below p = 0.24 [1, 2]. These are typical
signatu... | 0909.4218v1 |
2009-12-30 | 30 inch Roll-Based Production of High-Quality Graphene Films for Flexible Transparent Electrodes | We report that 30-inch scale multiple roll-to-roll transfer and wet chemical
doping considerably enhance the electrical properties of the graphene films
grown on roll-type Cu substrates by chemical vapor deposition. The resulting
graphene films shows a sheet resistance as low as ~30 Ohm/sq at ~90 %
transparency which i... | 0912.5485v3 |
2013-10-03 | Aharonov-Bohm resistance magneto-oscillations on single-nanohole graphite and graphene structures | Graphene is a stable single atomic layer material exhibiting two-dimensional
electron gas of massless Dirac fermions of high mobility. One of the intriguing
properties of graphene is a possibility of realization of the Tamm-type edge
states. These states differ from the usual surface states caused by defects,
impuritie... | 1310.0991v1 |
2014-02-27 | Spin-charge interplay in antiferromagnetic La$_{2-x}$Sr$_{x}$CuO$_{4}$ studied by the muons, neutrons, and ARPES techniques | Exploring whether a spin density wave (SDW) is responsible for the charge
excitations gap in the high-temperature superconducting cuprates is difficult,
since the region of the phase diagram where the magnetic properties are clearly
exposed is different from the region where the band dispersion is visible. On
the one h... | 1402.6936v1 |
2014-05-21 | High Mobility WSe2 p- and n-Type Field Effect Transistors Contacted by Highly Doped Graphene for Low-Resistance Contacts | We report the fabrication of both n-type and p-type WSe2 field effect
transistors with hexagonal boron nitride passivated channels and ionic-liquid
(IL)-gated graphene contacts. Our transport measurements reveal intrinsic
channel properties including a metal-insulator transition at a characteristic
conductivity close t... | 1405.5437v1 |
2015-01-07 | Angle dependence of the orbital magnetoresistance in bismuth | We present an extensive study of angle-dependent transverse magnetoresistance
in bismuth, with a magnetic field perpendicular to the applied electric current
and rotating in three distinct crystallographic planes. The observed angular
oscillations are confronted with the expectations of semi-classic transport
theory fo... | 1501.01584v2 |
2015-02-26 | First principles design of divacancy defected graphene nanoribbon based rectifying and negative differential resistance device | We have elaborately studied the electronic structure of 555-777 divacancy
(DV) defected armchair edged graphene nanoribbon (AGNR) and transport
properties of AGNR based two-terminal device constructed with one defected
electrode and one N doped electrode, by using density functional theory and
non-equilibrium Green's f... | 1502.07465v1 |
2016-06-07 | Superconductivity and Charge Density Wave in ZrTe$_{3-x}$Se$_{x}$ | Charge density wave (CDW), the periodic modulation of the electronic charge
density, will open a gap on the Fermi surface that commonly leads to decreased
or vanishing conductivity. On the other hand superconductivity, a commonly
believed competing order, features a Fermi surface gap that results in infinite
conductivi... | 1606.02284v1 |
2016-07-15 | Effect of interface on mid-infrared photothermal response of MoS2 thin film grown by pulsed laser deposition | Here we report mid infrared (mid-IR) photothermal response of multi layer
MoS2 thin film grown on crystalline (p-type silicon and c-axis oriented single
crystal sapphire) and amorphous substrates (Si/SiO2 and Si/SiN) by pulsed laser
deposition (PLD) technique. The photothermal response of the MoS2 films was
measured as... | 1607.04682v1 |
2016-11-10 | Pressure-induced quantum phase transition in the itinerant ferromagnet UCoGa | In this paper, we report the results of a high pressure study of the
itinerant 5f-electron ferromagnet UCoGa. The work is focused on probing the
expected ferromagnet-to-paramagnet quantum phase transition induced by high
pressure and on the general features of the P-T(-H) phase diagram. Diamond
anvil cells were employe... | 1611.03276v1 |
2016-11-14 | Two-carrier analyses of the transport properties of black phosphorus under pressure | We report on the electronic transport properties of black phosphorus and
analyze them using a two-carrier model in a wide range of pressure up to 2.5
GPa. In semiconducting state at 0.29 GPa, the remarkable non-linear behavior in
the Hall resistance is reasonably reproduced by assuming the coexistence of two
kinds of h... | 1611.04277v2 |
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