publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2018-03-05 | Simulation study of ballistic spin-MOSFET devices with ferromagnetic channels based on some Heusler and oxide compounds | Newly emerged materials from the family of Heuslers and complex oxides
exhibit finite bandgaps and ferromagnetic behavior with Curie temperatures much
higher than even room temperature. In this work, using the semiclassical
top-of-the-barrier FET model, we explore the operation of a spin-MOSFET that
utilizes such ferro... | 1803.01789v1 |
2022-03-14 | HDPView: Differentially Private Materialized View for Exploring High Dimensional Relational Data | How can we explore the unknown properties of high-dimensional sensitive
relational data while preserving privacy? We study how to construct an
explorable privacy-preserving materialized view under differential privacy. No
existing state-of-the-art methods simultaneously satisfy the following
essential properties in dat... | 2203.06791v3 |
2024-01-23 | Integration of High-Tc Superconductors with High Q Factor Oxide Mechanical Resonators | Micro-mechanical resonators are building blocks of a variety of applications
in basic science and applied electronics. This device technology is mainly
based on well-established and reproducible silicon-based fabrication processes
with outstanding performances in term of mechanical Q factor and sensitivity to
external ... | 2401.12758v1 |
2004-06-25 | Resistance Noise Near to Electrical Breakdown: Steady State of Random Networks as a Function of the Bias | A short review is presented of a recently developed computational approach
which allows the study of the resistance noise over the full range of bias
values, from the linear regime up to electrical breakdown. Resistance noise is
described in terms of two competing processes in a random resistor network. The
two process... | 0406648v1 |
2010-11-29 | Contact effects on transport in magnetite, an archetypal correlated transition metal oxide | Multiterminal measurements have typically been employed to examine electronic
properties of strongly correlated electronic materials such as transition metal
oxides without the influence of contact effects. In contrast, in this work we
investigate the interface properties of Fe$_3$O$_4$ with different metals, with
the ... | 1011.6407v1 |
2012-10-01 | Thermal Contact Resistance Across Nanoscale Silicon Dioxide and Silicon Interface | Silicon dioxide and silicon (SiO$_{2}$/Si) interface plays a very important
role in semiconductor industry. However, at nanoscale, its interfacial thermal
properties haven't been well understood so far. In this paper, we
systematically study the interfacial thermal resistance (Kapitza resistance) of
a heterojunction co... | 1210.0354v1 |
2013-02-19 | Local breakdown of the quantum Hall effect in narrow single layer graphene Hall devices | We have analyzed the breakdown of the quantum Hall effect in 1 micrometer
wide Hall devices fabricated from an exfoliated monolayer graphene transferred
on SiOx. We have observed that the deviation of the Hall resistance from its
quantized value is weakly dependent on the longitudinal resistivity up to
current density ... | 1302.4729v1 |
2016-01-17 | Low-resistance GaN tunnel homojunctions with 150 kA/cm^2 current and repeatable negative differential resistance | We report GaN n++/p++ interband tunnel junctions with repeatable negative
differential resistance and low resistance. Reverse and forward tunneling
current densities were observed to increase as Si and Mg doping concentrations
were increased. Hysteresis-free, bidirectional negative differential resistance
was observed ... | 1601.04353v2 |
2017-02-13 | Deconstructing temperature gradients across fluid interfaces: the structural origin of the thermal resistance of liquid-vapor interfaces | The interfacial thermal resistance determines condensation-evaporation
processes and thermal transport across material-fluid interfaces. Despite its
importance in transport processes, the interfacial structure responsible for
the thermal resistance is still unknown. By combining non-equilibrium molecular
dynamics simul... | 1702.03896v2 |
2018-03-21 | Measuring the thermal conductivity and interfacial thermal resistance of suspended MoS2 using electron beam self-heating technique | Establishment of a new technique or extension of an existing technique for
thermal and thermoelectric measurements to a more challenging system is an
important task to explore the thermal and thermoelectric properties of various
materials and systems. The bottleneck lies in the challenges in measuring the
thermal conta... | 1803.07757v1 |
2019-09-16 | An experimental proof that resistance-switching memories are not memristors | It has been suggested that all resistive-switching memory cells are
memristors. The latter are hypothetical, ideal devices whose resistance, as
originally formulated, depends only on the net charge that traverses them.
Recently, an unambiguous test has been proposed [J. Phys. D: Appl. Phys. {\bf
52}, 01LT01 (2019)] to ... | 1909.07238v2 |
2014-08-22 | Resistance and lifetime measurements of polymer solar cells using glycerol doped poly[3,4-ethylenedioxythiophene]: poly[styrenesulfonate] hole injection layers | We have performed resistivity measurements of
poly[3,4-ethylenedioxythiophene]: poly[styrenesulfonate] (PEDOT:PSS) films with
varying concentrations of glycerol. Resistivity is seen to decrease
exponentially from roughly 3 ohm-cm for pure PEDOT:PSS to 3x10-2 ohm-cm for 35
mg/cm3 glycerol in PEDOT:PSS. Beyond this conce... | 1408.5199v2 |
2017-01-17 | Grain Boundary Resistance in Copper Interconnects from an Atomistic Model to a Neural Network | Orientation effects on the resistivity of copper grain boundaries are studied
systematically with two different atomistic tight binding methods. A
methodology is developed to model the resistivity of grain boundaries using the
Embedded Atom Model, tight binding methods and non-equilibrum Green's functions
(NEGF). The m... | 1701.04897v3 |
2015-07-20 | Effect of Covalent Functionalisation on Thermal Transport Across Graphene-Polymer Interfaces | This paper is concerned with the interfacial thermal resistance for polymer
composites reinforced by various covalently functionalised graphene. By using
molecular dynamics simulations, the obtained results show that the covalent
functionalisation in graphene plays a significant role in reducing the
graphene-paraffin i... | 1507.05397v1 |
2020-12-05 | Machine Learning and Data Analytics for Design and Manufacturing of High-Entropy Materials Exhibiting Mechanical or Fatigue Properties of Interest | This chapter presents an innovative framework for the application of machine
learning and data analytics for the identification of alloys or composites
exhibiting certain desired properties of interest. The main focus is on alloys
and composites with large composition spaces for structural materials. Such
alloys or com... | 2012.07583v1 |
2000-11-10 | The origin of high transport spin polarization in La$_{0.7}$Sr$_{0.3} $MnO$_{3}$: direct evidence for minority spin states | Using the point contact Andreev reflection technique, we have carried out a
systematic study of the spin polarization in the colossal magnetoresistive
manganite, La$_{0.7}$Sr$_{0.3}$MnO$_{3}$} (LSMO). Surprisingly, we observed a
significant increase in the current spin polarization with the residual
resistivity. This c... | 0011198v1 |
2006-05-30 | Complex Precipitation Pathways in Multi-Component Alloys | One usual way to strengthen a metal is to add alloying elements and to
control the size and the density of the precipitates obtained. However,
precipitation in multicomponent alloys can take complex pathways depending on
the relative diffusivity of solute atoms and on the relative driving forces
involved. In Al-Zr-Sc a... | 0605738v1 |
2006-11-06 | Coexisting tuneable fractions of glassy and equilibrium long-range-order phases in manganites | Antiferromagnetic-insulating(AF-I) and the ferromagnetic-metallic(FM-M)
phases coexist in various half-doped manganites over a range of temperature and
magnetic field, and this is often believed to be an essential ingredient to
their colossal magnetoresistence. We present magnetization and resistivity
measurements on P... | 0611152v1 |
2008-05-27 | Colossal electroresistance effect around room temperature in LuFe2O4 | A colossal electroresistance effect is observed around room temperature in a
transition metal oxide LuFe2O4. The measurements of resistance under various
applied voltages as well as the highly nonlinear current-voltage
characteristics reveal that a small electric field is able to drive the
material from the insulating ... | 0805.4042v1 |
2008-07-21 | Superconducting and thermal properties of ex-situ Glidcop sheathed multifilamentary MgB2 wires | In DC and AC practical applications of MgB2 superconducting wires an
important role is represented by the material sheath which has to provide,
among other things, a suitable electrical and thermal stabilization. A way to
obtain a large enough amount of low resistivity material in to the conductor
architecture is to us... | 0807.3259v1 |
2012-12-14 | Using metallic photonic crystals as visible light sources | In this paper we study numerically and experimentally the possibility of
using metallic photonic crystals (PCs) of different geometries (log-piles,
direct and inverse opals) as visible light sources. It is found that by tuning
geometrical parameters of a direct opal PC one can achieve substantial
reduction of the emiss... | 1212.3451v1 |
2013-01-10 | Weak antilocalization in topological insulator Bi$_{2}$Te$_{3}$ microflakes | We have studied the carrier transport in two topological insulator (TI)
Bi$_{2}$Te$_{3}$ microflakes between 0.3 and 10 K and under applied backgate
voltages ($V_{\rm BG}$). Logarithmic temperature dependent resistance
corrections due to the two-dimensional electron-electron interaction effect in
the presence of weak d... | 1301.2023v1 |
2013-12-12 | Niobium Silicon alloys for Kinetic Inductance Detectors | We are studying the properties of Niobium Silicon amorphous alloys as a
candidate material for the fabrication of highly sensitive Kinetic Inductance
Detectors (KID), optimized for very low optical loads. As in the case of other
composite materials, the NbSi properties can be changed by varying the relative
amounts of ... | 1312.3588v1 |
2014-07-05 | Approaching the Limits of Transparency and Conductivity in Graphitic Materials through Lithium Intercalation | Various bandstructure engineering methods have been studied to improve the
performance of graphitic transparent conductors; however none demonstrated an
increase of optical transmittance in the visible range. Here we measure in situ
optical transmittance spectra and electrical transport properties of
ultrathin-graphite... | 1407.1416v1 |
2014-10-02 | Absence of the Ordinary and Extraordinary Hall effects scaling in granular ferromagnets at metal-insulator transition | Universality of the extraordinary Hall effect scaling was tested in granular
three-dimensional Ni-SiO2 films across the metal-insulator transition. Three
types of magnetotransport behavior have been identified: metallic, weakly
insulating and strongly insulating. Scaling between both the ordinary and
extraordinary Hall... | 1410.0491v1 |
2014-11-04 | Self-consistent modelling of nonlinear dynamic ESM microscopy in mixed ionic-electronic conductors | Dynamic Electrochemical Strain Microscopy (ESM) response of mixed
ionic-electronic conductors is analysed in the framework of the Thomas-Fermi
screening theory and Vegard law with accounting of the steric effects. The
emergence of dynamic charge waves and nonlinear deformation of the surface as
result of applying probi... | 1411.0966v1 |
2015-06-03 | Stable room-temperature ferromagnetic phase at the FeRh(100) surface | Interfaces and low dimensionality are sources of strong modifications of
electronic, structural, and magnetic properties of materials. FeRh alloys are
an excellent example because of the first-order phase transition taking place
at $\sim$400 K from an antiferromagnetic phase at room temperature to a high
temperature fe... | 1508.01777v1 |
2015-09-10 | Three-Dimensional Stateful Material Implication Logic | Monolithic three-dimensional integration of memory and logic circuits could
dramatically improve performance and energy efficiency of computing systems.
Some conventional and emerging memories are suitable for vertical integration,
including highly scalable metal-oxide resistive switching devices (memristors),
yet inte... | 1509.02986v1 |
2018-01-19 | Superconductivity in potassium-doped 2,2$'$-bipyridine | Organic compounds are always promising candidates of superconductors with
high transition temperatures. We examine this proposal by choosing
2,2$'$-bipyridine solely composed by C, H, and N atoms. The presence of
Meissner effect with a transition temperature of 7.2 K in this material upon
potassium doping is demonstrat... | 1801.06320v2 |
2018-05-07 | The Role of Grain Boundaries under Long-Time Radiation | Materials containing a high proportion of grain boundaries offer significant
potential for the development of radiation-resistent structural materials.
However, a proper understanding of the connection between the radiation-induced
microstructural behaviour of grain boundary and its impact at long natural time
scales i... | 1805.02360v1 |
2019-09-19 | Low compressible BP$_3$N$_6$ | Using first principles calculation, the structural and mechanical properties
of BP$_3$N$_6$ which adopts an orthorhombic structure with space group Pna2$_1$
(no. 33), were determined at three different pressure values (0, 20 and
42.4~GPa). The nine independent elastic constants meet all necessary and
sufficient conditi... | 1909.08879v2 |
2014-08-06 | Crystal structure and electronic structure of CePt2In7 | We report a corrected crystal structure for the CePt2In7 superconductor,
refined from single crystal x-ray diffraction data. The corrected crystal
structure shows a different Pt-In stacking along the c-direction in this
layered material than was previously reported. In addition, all the atomic
sites are fully occupied ... | 1408.1246v1 |
2017-01-30 | Pressure-induced superconductivity and topological quantum phase transitions in a quasi-one-dimensional topological insulator: Bi4I4 | Superconductivity and topological quantum states are two frontier fields of
research in modern condensed matter physics. The realization of
superconductivity in topological materials is highly desired, however,
superconductivity in such materials is typically limited to two- or
three-dimensional materials and is far fr... | 1701.08860v1 |
2019-03-12 | Structural and electronic properties of the spin-filter material CrVTiAl with disorder | The effects of chemical disorder on the transport properties of the
spin-filter material CrVTiAl are investigated experimentally and theoretically.
Synchrotron X-ray diffraction experiments on bulk CrVTiAl and the associated
Rietveld analysis indicate that the crystal structure consists primarily of a
mixture of a part... | 1903.05004v1 |
2019-01-28 | Effect of Bi Substitution on Thermoelectric Properties of SbSe2-based Layered Compounds NdO$_{0.8}$F$_{0.2}$Sb$_{1-x}$Bi$_x$Se$_2$ | Although SbSe2-based layered compounds have been predicted to be
high-performance thermoelectric materials and topological materials, most of
these compounds obtained experimentally have been insulators so far. Here, we
present the effect of Bi substitution on the thermoelectric properties of
SbSe2-based layered compou... | 1901.09909v1 |
2020-08-21 | An unexplored MBE growth mode reveals new properties of superconducting NbN | Accessing unexplored conditions in crystal growth often reveals remarkable
surprises and new regimes of physical behavior. In this work, performing
molecular beam epitaxy of the technologically important superconductor NbN at
temperatures greater than 1000$^\circ$C, higher than in the past, is found to
reveal persisten... | 2008.09596v3 |
2020-09-25 | A Possible Method of Carbon Deposit Mapping on Plasma Facing Components Using Infrared Thermography | The material eroded from the surface of plasma facing components is
redeposited partly close to high heat flux areas. At these locations, the
deposit is heated by the plasma and the deposition pattern evolves depending on
the operation parameters. The mapping of the deposit is still a matter of
intense scientific activ... | 2010.06374v1 |
2020-10-29 | Nature of native atomic defects in ZrTe$_5$ and their impact on the low-energy electronic structure | Over the past decades, investigations of the anomalous low-energy electronic
properties of ZrTe$_5$ have reached a wide array of conclusions. An open
question is the growth method's impact on the stoichiometry of ZrTe$_5$
samples, especially given the very small density of states near its chemical
potential. Here we re... | 2010.15513v1 |
2021-11-17 | Anisotropic superconductivity and unusually robust electronic critical field in single crystal La$_{7}$Ir$_{3}$ | Polycrystalline La$_{7}$Ir$_{3}$ is reported to show superconductivity
breaking time-reversal symmetry while also having an isotropic $s$-wave gap.
Single crystals of this noncentrosymmetric superconductor are highly desirable
to understand the nature of the electron pairing mechanism in this system. Here
we report the... | 2111.09239v2 |
2022-01-09 | Phase field fracture predictions of microscopic bridging behaviour of composite materials | We investigate the role of microstructural bridging on the fracture toughness
of composite materials. To achieve this, a new computational framework is
presented that integrates phase field fracture and cohesive zone models to
simulate fibre breakage, matrix cracking and fibre-matrix debonding. The
composite microstruc... | 2201.03066v1 |
2022-10-30 | Linear nonsaturating magnetoresistance in kagome superconductor CsV3Sb5 thin flakes | Linear nonsaturating magnetoresistance (LMR) represents a class of anomalous
resistivity response to external magnetic field that has been observed in a
variety of materials including but not limited to topological semi-metals,
high-Tc superconductors and materials with charge/spin density wave (CDW/SDW)
orders. Here w... | 2210.16890v1 |
2023-08-09 | Superionic phase transition of copper(I) sulfide and its implication for purported superconductivity of LK-99 | Lee, Kim, and coworkers have recently claimed room-temperature and
ambient-pressure superconductivity in a copper-doped lead apatite material
named LK-99. However, the polycrystalline material synthesized has a
significant fraction of copper(I) sulfide. Copper(I) sulfide has a known phase
transition at 104 degrees C fr... | 2308.05222v3 |
2023-11-15 | Strongly pinned skyrmionic bubbles and higher-order nonlinear Hall resistances at the interface of Pt/FeSi bilayer | Engineering of magnetic heterostructures for spintronic applications has
entered a new phase, driven by the recent discoveries of topological materials
and exfoliated van der Waals materials. Their low-dimensional properties can be
dramatically modulated in designer heterostructures via proximity effects from
adjacent ... | 2311.08730v1 |
2023-11-21 | Reliable lift-off patterning of graphene dispersions for humidity sensors | Dispersion-based graphene materials are promising candidates for various
sensing applications. They offer the advantage of relatively simple and fast
deposition via spin-coating, Langmuir-Blodgett deposition, or inkjet printing.
Film uniformity and reproducibility remain challenging in all of these
deposition methods. ... | 2311.12650v2 |
2024-04-10 | Optimal Matching of Thermal Vibrations into Carbon Nanotubes | Carbon nanotubes (CNTs) are promising candidates to improve the thermal
conductivity of nano-composites. The main obstacle to these applications is the
extremely high thermal boundary (Kapitza) resistance between the CNTs and their
matrix. In this theoretical work our goal is to maximize the heat flux through
the CNT b... | 2404.06938v1 |
2010-11-12 | Suspension and Measurement of Graphene and Bi2Se3 Atomic Membranes | Coupling high quality, suspended atomic membranes to specialized electrodes
enables investigation of many novel phenomena, such as spin or Cooper pair
transport in these two dimensional systems. However, many electrode materials
are not stable in acids that are used to dissolve underlying substrates. Here
we present a ... | 1011.2837v1 |
2011-11-04 | Dual-gated bilayer graphene hot electron bolometer | Detection of infrared light is central to diverse applications in security,
medicine, astronomy, materials science, and biology. Often different materials
and detection mechanisms are employed to optimize performance in different
spectral ranges. Graphene is a unique material with strong, nearly
frequency-independent l... | 1111.1202v1 |
2012-11-08 | Structural phase transformations in metallic grain boundaries | Structural transformations at interfaces are of profound fundamental interest
as complex examples of phase transitions in low-dimensional systems. Despite
decades of extensive research, no compelling evidence exists for structural
transformations in high-angle grain boundaries in elemental systems. Here we
show that th... | 1211.1756v2 |
2014-10-10 | Topological Origin of Fracture Toughening in Complex Solids: the Viewpoint of Rigidity Theory | In order to design tougher materials, it is crucial to understand the
relationship between their composition and their resistance to fracture. To
this end, we investigate the fracture toughness of usual sodium silicate
glasses (NS) and complex calcium--silicate--hydrates (CSH), the binding phase
of cement. Their atomis... | 1410.2916v1 |
2015-02-09 | Pressure-induced superconductivity in the three-dimensional Dirac semimetal Cd3As2 | The recently discovered Dirac and Weyl semimetals are new members of
topological materials. Starting from them, topological superconductivity may be
achieved, e.g. by carrier doping or applying pressure. Here we report
high-pressure resistance and X-ray diffraction study of the three-dimensional
topological Dirac semim... | 1502.02509v2 |
2017-06-19 | Electrical and Thermal Transport at the Planckian Bound of Dissipation in the Hydrodynamic Electron Fluid of WP2 | Materials with strongly-correlated electrons exhibit interesting phenomena
such as metal-insulator transitions and high-temperature superconductivity. In
stark contrast to ordinary metals, electron transport in these materials is
thought to resemble the flow of viscous fluids. Despite their differences, it
is predicted... | 1706.05925v2 |
2017-09-22 | On Extracting Mechanical Properties from Nanoindentation at Temperatures up to 1000$^{\circ}$C | Alloyed MCrAlY bond coats, where M is usually cobalt and/or nickel, are
essential parts of modern turbine blades, imparting environmental resistance
while mediating thermal expansivity differences. Nanoindentation allows the
determination of their properties without the complexities of traditional
mechanical tests, but... | 1709.07714v1 |
2017-03-16 | Equivalence of Effective Medium and Random Resistor Network models for disorder-induced unsaturating linear magnetoresistance | A linear unsaturating magnetoresistance at high perpendicular magnetic
fields, together with a quadratic positive magnetoresistance at low fields, has
been seen in many different experimental materials, ranging from silver
chalcogenides and thin films of InSb to topological materials like graphene and
Dirac semimetals.... | 1703.05478v1 |
2017-08-24 | Probing the Fermi surface and magnetotransport properties in MoAs$_{2}$ | Transition metal dipnictides (TMDs) have recently been identified as possible
candidates to host topology protected electronic band structure. These
materials belong to an isostructural family and show several exotic transport
properties. Especially, the large values of magnetoresistance (MR) and carrier
mobility have ... | 1708.07294v1 |
2019-03-18 | Zirconia UV-curable colloids for additive manufacturing via hybrid inkjet printing-stereolithography | Currently, additive manufacturing of ceramics by stereolithography (SLA) is
limited to single materials and by a poor thickness resolution that strongly
depends on the ceramic particles-UV light interaction. Combining selective
laser curing with inkjet printing represents a novel strategy to overcome these
constrains. ... | 1903.07731v1 |
2019-12-23 | Large $d_{33}$ Piezoelectric-Polymer Composites For RF Acoustic Resonators | While piezoelectric transduction enables designing acoustic resonators
operating at multi-GHz frequencies, the deposition of piezoelectric materials
typically requires high temperature processes and specific crystallographic
orientation of substrates, thus imposing a limitation on materials that could
be used. In this ... | 1912.10713v1 |
2021-01-25 | Polycaprolactone/graphite nanoplates composite nanopapers | Nanopapers based on graphene and related materials were recently proposed for
application in heat spreader applications. To overcome typical limitations in
brittleness of such materials, this work addressed the combination of graphite
nanoplatelets (GNP) with a soft, tough and crystalline polymer, acting as an
efficien... | 2101.10283v1 |
2019-11-13 | Portable and wireless signal transducer for field testing of environmental sensors based on 2D materials | In this paper we present the design and fabrication of a portable device for
environmental monitoring applications. This novel hand-held apparatus monitors
the changes in the resistance of a sensing surface with a high accuracy and
resolution and transmits the recorded data wirelessly to a cellphone. Such a
design offe... | 1911.05764v2 |
2022-01-08 | Dynamical Mean Field Studies of Infinite Layer Nickelates: Physics Results and Methodological Implications | This article summarizes recent work on the many-body (beyond density
functional theory) electronic structure of layered rare-earth nickelates, both
in the context of the materials themselves and in comparison to the
high-temperature superconducting (high-$T_c$) layered copper-oxide compounds.
It aims to outline the cur... | 2201.02852v1 |
2022-03-04 | Broadband Cross-Circular Polarization Carpet Cloaking based on a Phase Change Material Metasurface in the Mid-infrared Region | In view of the fact that most invisibility devices focus on linear
polarization cloaking and that the characteristics of mid infrared cloaking are
rarely studied, we propose a cross circularly polarized invisibility carpet
cloaking device in the mid infrared band. Based on the Pancharatnam Berry phase
principle, the un... | 2203.02222v1 |
2022-03-06 | Scaled indium oxide transistors fabricated using atomic layer deposition | In order to continue to improve integrated circuit performance and
functionality, scaled transistors with short channel lengths and low thickness
are needed. But the further scaling of silicon-based devices and the
development of alternative semiconductor channel materials that are compatible
with current fabrication p... | 2203.02869v1 |
2022-10-18 | Nanoscale friction controlled by top layer thickness in [LaMnO$_{3}$]$_{m}$/[SrMnO$_{3}$]$_{n}$ superlattices | We conducted lateral force microscopy measurements on seven
[LaMnO$_{3}$]$_{m}$/[SrMnO$_{3}$]$_{n}$ superlattices with varied layer
thicknesses. We observe that the friction forces and the friction coefficients
initially increase with increasing LaMnO3 top layer thickness, followed by
saturation when the top layer thic... | 2210.09677v1 |
2023-05-15 | Superconductivity at epitaxial LaTiO3-KTaO3 interfaces | Design of epitaxial interfaces is a pivotal way to engineer artificial
structures where new electronic phases can emerge. Here we report a systematic
emergence of interfacial superconducting state in epitaxial heterostructures of
LaTiO3 and KTaO3. The superconductivity transition temperature increases with
decreasing t... | 2305.08304v1 |
2024-02-16 | Erosion Study of Tungsten Carbide films under 100 keV Kr+ ion irradiation | Tungsten carbide (WC) stands out as a crucial material for exploration in
extreme environments due to its resistance to radiation and impressive
mechanical strength. Widely utilized in cutting tools, high-wear components,
and as a potential contender for plasma-facing material in nuclear reactors,
WC's erosion behavior... | 2402.10461v1 |
2001-05-22 | Infrared optical properties of Pr2CuO4 | The ab-plane reflectance of a Pr2CuO4 single crystal has been measured over a
wide frequency range at a variety of temperatures, and the optical properties
determined from a Kramers-Kronig analysis. Above ~ 250 K, the low frequency
conductivity increases quickly with temperature; the resistivity follows the
form e^(E_a... | 0105445v2 |
2006-11-29 | What is the valence of a correlated solid? The double life of delta-plutonium | Plutonium displays phase transitions with enormous volume differences among
its phases and both its Pauli like magnetic susceptibility and resistivity are
an order of magnitude larger than those of simple metals. Curium is also highly
resistive but its susceptibility is Curie-like at high temperatures and orders
antife... | 0611760v1 |
2009-05-08 | Magnetotransport in polycrystalline La$_{2/3}$Sr$_{1/3}$MnO$_{3}$ thin films of controlled granularity | Polycrystalline La$_{2/3}$Sr$_{1/3}$MnO$_{3}$ (LSMO) thin films were
synthesized by pulsed laser ablation on single crystal (100) yttria-stabilized
zirconia (YSZ) substrates to investigate the mechanism of magneto-transport in
a granular manganite. Different degrees of granularity is achieved by using the
deposition te... | 0905.1306v1 |
2009-12-27 | Topological Insulator Nanowires and Nanoribbons | Recent theoretical calculations and photoemission spectroscopy measurements
on the bulk Bi2Se3 material show that it is a three-dimensional topological
insulator possessing conductive surface states with nondegenerate spins,
attractive for dissipationless electronics and spintronics applications.
Nanoscale topological ... | 0912.5045v1 |
2010-06-02 | Antiferromagnetic Mott insulating state in single crystals of the hexagonal lattice material Na2IrO3 | We have synthesized single crystals of Na_2IrO_3 and studied their structure,
transport, magnetic, and thermal properties using powder x-ray diffraction
(PXRD), electrical resistivity, isothermal magnetization M versus magnetic
field H, magnetic susceptibility \chi versus temperature T, and heat capacity C
versus T mea... | 1006.0437v1 |
2010-11-02 | Graphene: from materials science to particle physics | Since its discovery in 2004, graphene, a two-dimensional hexagonal carbon
allotrope, has generated great interest and spurred research activity from
materials science to particle physics and vice versa. In particular, graphene
has been found to exhibit outstanding electronic and mechanical properties, as
well as an unu... | 1011.0643v1 |
2013-03-04 | Statistical Study of Deep Sub-Micron Dual-Gated Field-Effect Transistors on Monolayer CVD Molybdenum Disulfide Films | Monolayer Molybdenum Disulfide (MoS2) with a direct band gap of 1.8 eV is a
promising two-dimensional material with a potential to surpass graphene in next
generation nanoelectronic applications. In this letter, we synthesize monolayer
MoS2 on Si/SiO2 substrate via chemical vapor deposition (CVD) method and
comprehensi... | 1303.0776v1 |
2014-10-17 | Anisotropic strain in SmSe and SmTe: implications for electronic transport | Mixed valence rare-earth samarium compounds SmX (X=Se,Te) have been recently
proposed as candidate materials for use in high-speed, low-power digital
switches driven by stress induced changes of resistivity. At room temperature
these materials exhibit a pressure driven insulator-to-metal transition with
resistivity dec... | 1410.4740v1 |
2015-08-19 | Independent tuning of electronic properties and induced ferromagnetism in topological insulators with heterostructure approach | The quantum anomalous Hall effect (QAHE) has been recently demonstrated in
Cr- and V-doped three-dimensional topological insulators (TIs) at temperatures
below 100 mK. In those materials, the spins of unfilled d-electrons in the
transition metal dopants are exchange coupled to develop a long-range
ferromagnetic order, ... | 1508.04719v1 |
2016-11-08 | Superconductivity Induced by High Pressure in Weyl Semimetal TaP | Weyl semimetal defines a material with three dimensional Dirac cones which
appear in pair due to the breaking of spatial inversion or time reversal
symmetry. Superconductivity is the state of quantum condensation of paired
electrons. Turning a Weyl semimetal into superconducting state is very
important in having some u... | 1611.02548v1 |
2017-02-15 | On Ni-Sb-Sn based skutterudites | Novel filled skutterudites EpyNi4Sb12-xSnx (Ep = Ba and La) have been
prepared by arc melting followed by annealing at 250C, 350C and 450C up to 30
days in sealed quartz vials. A maximum filling level of y = 0.93 and y = 0.65
was achieved for the Ba and La filled skutterudite, respectively. Single-phase
samples with th... | 1702.04654v1 |
2018-04-13 | Tuning spin one channel to exotic orbital two-channel Kondo effect in ferrimagnetic composites of LaNiO3 and CoFe2O4 | We report the tuning from spin one channel (1CK) to orbital two-channel Kondo
(2CK) effect by varying CoFe2O4 (CFO) content in the composites with LaNiO3
(LNO) along with the presence of ferrimagnetism. Although there is no signature
of resistivity upturn in case of pure LNO, all the composites exhibit a
distinct uptur... | 1804.04796v1 |
2018-06-20 | Tunable disorder and localization in the rare-earth nickelates | The rare-earth nickelates are a rich playground for transport properties,
known to host non-Fermi liquid character, resistance saturation and
metal-insulator transitions. We report a study of transport in LaNiO3 in the
presence of tunable disorder induced by irradiation. While pristine LaNiO3
samples are metallic, high... | 1806.07986v1 |
2019-09-04 | Exploring Disorder in the Spin Gapless Semiconductor Mn$_2$CoAl | Since the prediction of spin-gapless semiconducting behaviour in the Heusler
compound Mn$_2$CoAl, evidence of spin-gapless behaviour in thin films has
typically been inferred from magnetotransport measurements. The spin gapless
state is however fragile, and further, band structure calculations indicate
that even a smal... | 1909.02153v1 |
2019-07-10 | Electronic Transport Evidence for Topological Nodal-Line Semimetals of ZrGeSe single crystals | Although the band topology of ZrGeSe has been studied via magnetic torque
technique, the electronic transport behaviors related to the relativistic
Fermions in ZrGeSe are still unknown. Here, we first report systematic
electronic transport properties of high-quality ZrGeSe single crystals under
magnetic fields up to 14... | 1907.04762v1 |
2019-12-06 | Correlated Insulating States and Transport Signature of Superconductivity in Twisted Trilayer Graphene Moiré of Moiré Superlattices | Layers of two-dimensional materials stacked with a small twist-angle give
rise to beating periodic patterns on a scale much larger than the original
lattice, referred to as a moir\'e superlattice. When the stacking involves more
than two layers with independent twist angles between adjacent layers, it
generates moir\'e... | 1912.03375v2 |
2020-01-14 | Heavy non-degenerate electrons in doped strontium titanate | Room-temperature metallicity of lightly doped SrTiO$_3$ is puzzling, because
the combination of mobility and the effective mass would imply a mean-free-path
(mfp) below the Mott Ioffe Regel (MIR) limit and a scattering time shorter than
the Planckian time ($\tau_P=\hbar/k_BT$). We present a study of electric
resistivit... | 2001.04668v4 |
2021-06-21 | Three-dimensional quasi-quantized Hall insulator phase in SrSi2 | In insulators, the longitudinal resistivity becomes infinitely large at zero
temperature. For classic insulators, the Hall conductivity becomes zero at the
same time. However, there are special systems, such as two-dimensional quantum
Hall isolators, in which a more complex scenario is observed at high magnetic
fields.... | 2106.11329v1 |
2021-07-05 | Quantum anomalous Hall effect from intertwined moiré bands | Electron correlation and topology are two central threads of modern condensed
matter physics. Semiconductor moir\'e materials provide a highly tunable
platform for studies of electron correlation. Correlation-driven phenomena,
including the Mott insulator, generalized Wigner crystals, stripe phases and
continuous Mott ... | 2107.01796v1 |
2021-10-01 | Gate-tunable Intrinsic Anomalous Hall Effect in Epitaxial MnBi2Te4 Films | Anomalous Hall effect (AHE) is an important transport signature revealing
topological properties of magnetic materials and their spin textures. Recently,
antiferromagnetic MnBi2Te4 has been demonstrated to be an intrinsic magnetic
topological insulator that exhibits quantum AHE in exfoliated nanoflakes.
However, its co... | 2110.00540v1 |
2021-12-23 | Impact of the superconductors properties on the measurement sensitivity of resonant-based axion detectors | Axions, hypothetical particles theorized to solve the strong CP-problem, are
presently being considered as strong candidates as cold dark matter
constituents. The signal power of resonant-based axion detectors, known as
haloscopes, is directly proportional to their quality factor $Q$. In this
paper, the impact of the u... | 2112.12775v1 |
2022-01-28 | Substitutional Doped GeSe: Tunable Oxidative States with Strain Engineering | Layered chalcogenide materials have a wealth of nanoelectronics applications
like resistive switching and energy-harvesting such as photocatalyst owing to
rich electronic, orbital, and lattice excitations. In this work, we explore
monochalcogenide germanium selenide GeSe with respect to substitutional doping
with 13 me... | 2201.11890v1 |
2022-05-24 | Quantum hybridization negative differential resistance from non-toxic halide perovskite nanowire heterojunctions and its strain control | While low-dimensional organometal halide perovskites are expected to open up
new opportunities for a diverse range of device applications, like in their
bulk counterparts, the toxicity of Pb-based halide perovskite materials is a
significant concern that hinders their practical use. We recently predicted
that lead trii... | 2205.11689v1 |
2022-06-06 | Anisotropic magnetic property of single crystals $R$V$_6$Sn$_6$ ($R$ = Y, Gd - Tm, Lu) | $R$V${_6}$Sn${_6}$ ($R$ = Y, Gd - Tm, Lu) single crystals are synthesized by
Sn-flux method and their physical properties are characterized by
magnetization, resistivity, and specific heat measurements. Powder X-ray
diffraction patterns of all samples can be well indexed with the hexagonal
HfFe$_6$Ge$_6$-type structure... | 2206.02924v1 |
2022-09-21 | Optical properties and carrier localization in the layered phosphide EuCd$_\mathbf{2}$P$_\mathbf{2}$ | The temperature dependence of the complex optical properties of the layered
phosphide material EuCd$_2$P$_2$ have been measured over a wide frequency range
above and below $T_{\rm N} \simeq 11.5$ K for light polarized in the $a-b$
planes. At room temperature, the optical conductivity is well described by a
weak free-ca... | 2209.10606v2 |
2022-10-14 | Anti-site disorder and Berry curvature driven anomalous Hall effect in spin gapless semiconducting Mn2CoAl Heusler compound | Spin gapless semiconductors exhibit a finite band gap for one spin channel
and closed gap for other spin channel, emerged as a new state of magnetic
materials with a great potential for spintronic applications. The first
experimental evidence for the spin gapless semiconducting behavior was observed
in an inverse Heusl... | 2210.07668v1 |
2022-12-02 | FeRhCrSi: A new spin semimetal with room temperature spin-valve behavior | Spin semimetals are a recently discovered new class of spintronic materials,
which exhibit a band gap in one spin channel while a semimetallic feature in
the other and thus allows for tunable spin transport. Here, we present
experimental verification of spin semimetallic behavior in FeRhCrSi, a
quaternary Heusler alloy... | 2212.00924v2 |
2023-01-11 | Domain Wall-Magnetic Tunnel Junction Analog Content Addressable Memory Using Current and Projected Data | With the rise in in-memory computing architectures to reduce the
compute-memory bottleneck, a new bottleneck is present between analog and
digital conversion. Analog content-addressable memories (ACAM) are being
recently studied for in-memory computing to efficiently convert between analog
and digital signals. Magnetic... | 2301.04598v1 |
2023-04-26 | Microbial Corrosion Prevention by Citrobacter sp. Biofilms | Microbiologically influenced corrosion (MIC) compromises the integrity of
many technologically relevant metals. Protective coatings based on synthetic
materials pose potential environmental impacts. Here, we report a MIC resistant
coating based on a biofilm matrix of Citrobacter sp. strain MIC21 on underlying
copper (C... | 2304.13862v1 |
2023-06-01 | Bulk conducting states of intrinsically doped Bi$_2$Se$_3$ | With a large band gap and a single Dirac cone responsible for the topological
surface states, Bi2Se3 is widely regarded as a prototypical 3D topological
insulator. Further applications of the bulk material has, however, been
hindered by inherent structural defects that donate electrons and make the bulk
conductive. Con... | 2306.00827v1 |
2023-07-06 | Tunable magnetism and electron correlation in Titanium-based Kagome metals RETi3Bi4 (RE = Yb, Pr, and Nd) by rare-earth engineering | Rare-earth engineering is an effective way to introduce and tune the
magnetism in topological Kagome magnets, which has been acting as a fertile
platform to investigate the quantum interactions between geometry, topology,
spin, and correlation. Here we report the structure and properties of three
newly discovered Titan... | 2307.02942v1 |
2023-09-23 | Three-dimensional graphene on a nano-porous 4H-SiC backbone: a novel material for food sensing applications | Sensors which are sensitive to volatile organic compounds and thus able to
monitor the conservation state of food, are precious because they work
non-destructively and allow to avoid direct contact with the food, ensuring
hygienic conditions. In particular, the monitoring of rancidity would solve a
widespread issue in ... | 2309.13431v1 |
2023-09-26 | On Hyperelastic Crease | We present analyses of crease-formation and stability criteria for
incompressible hyperelastic solids. A generic singular perturbation over a
laterally compressed half-space creates a far-field eigenmode of three
energy-release angular sectors separated by two energy-elevating sectors of
incremental deformation. The fa... | 2309.14626v1 |
2024-02-15 | Quantum Linear Magnetoresistance and Fermi Liquid Behavior in Kagome Metal Ni3In2S2 | Kagome metals gain attention as they manifest a spectrum of quantum
phenomena, including superconductivity, charge order, frustrated magnetism, and
intertwined correlated states of condensed matter. With regard to electronic
band structure, several of the them exhibit non-trivial topological
characteristics. Here, we p... | 2402.10096v1 |
2022-11-28 | On the energy conversion efficiency of the bulk photovoltaic effect | The bulk photovoltaic effect (BPVE) leads to directed photo-currents and
photo-voltages in bulk materials. Unlike photo-voltages in p-n junction solar
cells that are limited by carrier recombination to values below the bandgap
energy of the absorbing material, the BPVE photo-voltages have been shown to
greatly exceed t... | 2211.15124v2 |
2016-07-06 | Thermal Resistances of Thin-Films of Small Molecule Organic Semiconductors | We have measured the thermal resistances of thin films of the small molecule
organic semiconductors bis(triisopropylsilylethynyl) pentacene (TIPS-pn),
bis(triethylsilylethynyl) anthradithiophene (TES-ADT) and difluoro
bis(triethylsilylethynyl) anthradithiophene (diF-TES-ADT). For each material,
several films of differe... | 1607.01712v2 |
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