publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2020-11-20 | Large Thermoelectric Power Factor in Whisker Crystals of Solid Solutions of the One-Dimensional Tellurides Ta4SiTe4 and Nb4SiTe4 | One-dimensional tellurides Ta4SiTe4 and Nb4SiTe4 were found to show high
thermoelectric performance below room temperature. This study reported the
synthesis and thermoelectric properties of whisker crystals of
Ta4SiTe4-Nb4SiTe4 solid solutions and Mo- or Ti-doped (Ta0.5Nb0.5)4SiTe4.
Thermoelectric power of the solid s... | 2011.10162v1 |
2020-12-11 | Absence of superconductivity in topological metal ScInAu$_2$ | The Heusler compound ScInAu$_2$ was previously reported to have a
superconducting ground state with a critical temperature of 3.0 K. Recent high
throughput calculations have also predicted that the material harbors a
topologically non-trivial band structure similar to that reported for
beta-PdBi$_2$. In an effort to ex... | 2012.06501v1 |
2021-02-24 | Synthesis of new high-entropy alloy-type Nb3 (Al, Sn, Ge, Ga, Si) superconductors | Studies on high-entropy alloy (HEA) superconductors have recently been
increasing, particularly in the fields of materials science and condensed
matter physics. To contribute to research on new HEA-type superconductors, in
our study we synthesized polycrystalline samples of A15-type superconductors of
Nb3Al0.2Sn0.2Ge0.... | 2102.12271v1 |
2021-02-24 | Spin waves and high-frequency response in layered superconductors with helical magnetic structure | We evaluate the spin-wave spectrum and dynamic susceptibility in a layered
superconductors with helical interlayer magnetic structure. We especially focus
on the structure in which the moments rotate 90$^{\circ}$ from layer to layer
realized in the iron pnictide RbEuFe$_{4}$As$_{4}$. The spin-wave spectrum in
supercond... | 2102.12445v2 |
2021-06-08 | High electrical conduction of Sb square net in anti-ThCr$_2$Si$_2$ type La$_2$O$_2$Sb thin film grown by multilayer solid-phase epitaxy | Anti-ThCr$_2$Si$_2$ type $RE_2$O$_2$Sb ($RE$ = rare earth) with Sb square net
has shown insulating conduction so far. Here we report the synthesis of
La$_2$O$_2$Sb epitaxial thin films for the first time by multilayer solid-phase
epitaxy. The valence state of Sb was about -2 evaluated from X-ray
photoemission spectrosc... | 2106.04713v1 |
2021-07-12 | Hysteretic effects and magnetotransport of electrically switched CuMnAs | Antiferromagnetic spintronics allows us to explore storing and processing
information in magnetic crystals with vanishing magnetization. In this
manuscript, we investigate magnetoresistance effects in antiferromagnetic
CuMnAs upon switching into high-resistive states using electrical pulses. By
employing magnetic field... | 2107.05724v1 |
2021-08-20 | Quantum oscillations in an optically-illuminated two-dimensional electron system at the LaAlO$_3$/SrTiO$_3$ interface | We have investigated the illumination effect on the magnetotransport
properties of a two-dimensional electron system at the LaAlO$_3$/SrTiO$_3$
interface. The illumination significantly reduces the zero-field sheet
resistance, eliminates the Kondo effect at low-temperature, and switches the
negative magnetoresistance i... | 2108.09156v1 |
2021-11-27 | Antiferromagnetic order in MnBi2Te4 films grown on Si(111) by molecular beam epitaxy | MnBi2Te4 has recently been predicted and shown to be a magnetic topological
insulator with intrinsic antiferromagnetic order. However, it remains a
challenge to grow stoichiometric MnBi2Te4 films by molecular beam epitaxy (MBE)
and to observe pure antiferromagnetic order by magnetometry. We report on a
detailed study o... | 2111.13960v1 |
2021-12-04 | Superconducting and normal state properties of high entropy alloy Nb-Re-Hf-Zr-Tiinvestigated by muon spin relaxation and rotation | Superconducting high entropy alloy (HEA) are emerging as a new class of
superconducting materials. It provides a unique opportunity to understand the
complex interplay of disorder and superconductivity. We report the synthesis
and detail bulk and microscopic characterization of
Nb$_{60}$Re$_{10}$Zr$_{10}$Hf$_{10}$Ti$_{... | 2112.02388v1 |
2022-01-31 | Disorder-mediated quenching of magnetization in NbVTiAl: Theory and Experiment | In this paper, we present the structural, electronic, magnetic and transport
properties of a equiatomic quaternary alloy NbVTiAl. The absence of (111) and
(200) peaks in X-ray diffraction (XRD) data confirms the A2-type structure.
Magnetization measurements indicate a high Curie temperature and a negligibly
small magne... | 2201.13037v1 |
2022-03-12 | Quantum transport evidence of the boundary states and Lifshitz transition in Bi$_4$Br$_4$ | The quasi-one-dimensional van der Waals compound Bi$_4$Br$_4$ was recently
found to be a promising high-order topological insulator with exotic electronic
states. In this paper, we study the electrical transport properties of
Bi$_4$Br$_4$ bulk crystals. Two electron-type samples with different electron
concentrations a... | 2203.06529v1 |
2022-06-21 | Second harmonic AC calorimetry technique within a diamond anvil cell | Tuning the energy density of matter at high pressures gives rise to exotic
and often unprecedented properties, e.g., structural transitions,
insulator-metal transitions, valence fluctuations, topological order, and the
emergence of superconductivity. The study of specific heat has long been used
to characterize these k... | 2206.10072v1 |
2022-08-10 | Synthesis and Superconductivity in Yttrium-Cerium Hydrides at Moderate Pressures | Inspired by the high critical temperature in yttrium superhydride and the low
stabilized pressure in superconducting cerium superhydride, we carry out four
independent runs to synthesize yttrium-cerium alloy hydrides. The phases
examined by the Raman scattering and x-ray diffraction measurements. The
superconductivity ... | 2208.05191v1 |
2022-10-12 | Field Induced Multiple Superconducting Phases in UTe2 along Hard Magnetic Axis | The superconducting (SC) phase diagram in uranium ditelluride is explored
under magnetic fields ($H$) along the hard magnetic b-axis using a high-quality
single crystal with $T_{\rm c} = 2.1$ K. Simultaneous electrical resistivity
and AC magnetic susceptibility measurements discern low- and high-field SC
(LFSC and HFSC... | 2210.05909v2 |
2022-10-20 | Nanowire bolometer using a 2D high-temperature superconductor | Superconducting nanowires are very important due to their applications
ranging from quantum technology to astronomy. In this work, we implement a
non-invasive process to fabricate nanowires of high-$T_\text{c}$ superconductor
Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ (BSCCO). We demonstrate that our nanowires
can be used as b... | 2210.11254v2 |
2023-01-16 | Role of disorder and strong 5$d$ electron correlation in the electronic structure of Sr2TiIrO6 | Transport and magnetic properties along with high resolution valence band
photoemission study of disordered double perovskite Sr$_{2}$TiIrO$_{6}$ has
been investigated. Insulator to insulator transition along with a magnetic
transition concurrently occurs at 240 K. Comparison of valence band
photoemission with band str... | 2301.06275v1 |
2023-01-20 | Giant resonant enhancement for photo-induced superconductivity in K$_3$C$_{60}$ | Photo-excitation at terahertz and mid-infrared frequencies has emerged as a
new way to manipulate functionalities in quantum materials, in some cases
creating non-equilibrium phases that have no equilibrium analogue. In
K$_3$C$_{60}$, a metastable zero-resistance phase was documented with optical
properties and pressur... | 2301.08633v2 |
2023-02-13 | Superconductivity with large upper critical field in noncentrosymmetric Cr-bearing high-entropy alloys | A series of new Cr$_{5+x}$Mo$_{35-x}$W$_{12}$Re$_{35}$Ru$_{13}$C$_{20}$
high-entropy alloys (HEAs) have been synthesized and characterized by x-ray
diffraction, scanning electron microscopy, electrical resistivity, magnetic
susceptibility and specific heat measurements. It is found that the HEAs adopt
a noncentrosymmet... | 2302.06036v1 |
2023-02-23 | Pressure induced electride phase formation in calcium: A key to its strange high-pressure behavior | Elemental calcium (Ca), a simple metal at ambient conditions, has attracted
huge interest because of its unusual high-pressure behavior in structural,
electrical, and melting properties whose origin remain unsolved. Here, using a
theoretical framework appropriate for describing electride phase formation,
i.e., the pres... | 2302.11833v1 |
2023-05-16 | Ambient and high-pressure electrical transport and structural investigations of magnetic Weyl semimetal PrAlGe | We present ambient and high-pressure electrical transport and structural
properties of recently discovered magnetic Weyl semimetal PrAlGe. Electrical
resistivity at ambient pressure shows an anomaly at $T_C$ = 15.1 K related to
the ferromagnetic transition. Anomalous Hall effect (AHE) is observed below
$T_C$. We observ... | 2305.09298v1 |
2023-05-18 | High-quality superconducting α-Ta film sputtered on heated silicon substrate | Intrigued by the discovery of the long lifetime in the
{\alpha}-Ta/Al2O3-based Transmon qubit, researchers recently found {\alpha}-Ta
film is a promising platform for fabricating multi-qubits with long coherence
time. To meet the requirements for integrating superconducting quantum
circuits, the ideal method is to grow... | 2305.10957v2 |
2023-05-20 | A Computational Approach for Mapping Electrochemical Activity of Multi-Principal Element Alloys | Multi principal element alloys (MPEAs) comprise a unique class of metal
alloys. MPEAs have been demonstrated to possess several exceptional properties,
including, as most relevant to the present study, a high corrosion resistance.
In the context of MPEA design, the vast number of potential alloying elements
and the sta... | 2305.12059v1 |
2023-06-16 | Epitaxial α-Ta (110) film on a-plane sapphire substrate for superconducting qubits on wafer scale | Realization of practical superconducting quantum computing requires many
qubits of long coherence time. Compared to the commonly used Ta deposited on
c-plane sapphire, which occasionally form {\alpha}-Ta (111) grains and
\b{eta}-tantalum grains, high quality Ta (110) film can grow epitaxial on
a-plane sapphire because ... | 2306.09568v2 |
2023-08-07 | Modeling of electrochemical oxide film growth -- impact of band-to-band tunneling | The Point Defect Model (PDM) describes the corrosion resistance properties of
oxide films based on interfacial reactions and defect transport, which are
affected by the electric field inside the oxide film. The PDM assumes a
constant electric field strength due to band-to-band tunneling (BTBT) of
electrons and the sepa... | 2308.05113v1 |
2023-09-09 | High-throughput screening of coherent topologically close-packed precipitates in hexagonal close-packed metallic systems | The nanoscale, coherent topologically close-packed (TCP) precipitate plates
in magnesium alloys are found beneficial to the strength and creep resistance
of alloys. However, the conventional trial-and-error method is too
time-consuming and costly, which impedes the application of TCP precipitates to
hcp-based metallic ... | 2309.04822v2 |
2023-09-18 | Superconductivity in the bcc-type High-entropy Alloy TiHfNbTaMo | X-ray powder diffraction, electrical resistivity, magnetization, and
thermodynamic measurements were conducted to investigate the structure and
superconducting properties of TiHfNbTaMo, a novel high-entropy alloy possessing
a valence electron count (VEC) of 4.8. The TiHfNbTaMo HEA was discovered to
have a body-centered... | 2309.09494v1 |
2023-11-26 | On the special oxidation mechanism of a Mg-Y-Al alloy contained LPSO phase at high temperatures | This work investigated the oxidation of Mg-11Y-1Al alloy in Ar-20%O2 at
500{\deg}through multiscale characterization. The results show that the
network-like long-period stacking ordered(LPSO) phase decomposed into a
needle-like LPSO phase and a polygonal Mg24Y5 phase. The needle-like LPSO phase
resulted in the formatio... | 2311.15182v1 |
2024-03-29 | Metamagnetism in the high-pressure tetragonal phase of UTe$_2$ | A structural orthorhombic-to-tetragonal phase transition was recently
discovered in the heavy-fermion compound UTe$_2$ at a pressure
$p^*\simeq3-8$~GPa [Honda \textit{et al.}, J. Phys. Soc. Jpn. \textbf{92},
044702 (2023); Huston \textit{et al.}, Phys. Rev. Mat. \textbf{6}, 114801
(2022)]. In the high-pressure tetragon... | 2403.20277v1 |
2024-04-17 | Anisotropic Nonsaturating Magnetoresistance Observed in HoMn$_6$Ge$_6$: A Kagome Dirac Semimetal | We report the magnetic and magnetotransport properties and electronic band
structure of the kagome Dirac semimetal HoMn$_6$Ge$_6$. Temperature-dependent
electrical resistivity demonstrates various magnetic-transition-driven
anomalies. Notably, a crossover from negative to positive magnetoresistance
(MR) is observed at ... | 2404.11414v2 |
2009-01-15 | Metal-insulator transition and electroresistance in lanthanum/calcium manganites La_<1-x>Ca_<x>MnO_<3> (x = 0-0.5) from voltage-current-temperature surfaces | Of the perovskites, ABX_<3>, a subset of special interest is the family in
which the A site is occupied by a lanthanide ion, the B site by a rare earth
and X is oxygen, as such materials often exhibit a large change in electrical
resistance in a magnetic field, a phenomenon known as "colossal"
magnetoresistance (MR). T... | 0901.2243v1 |
2009-10-24 | Monte Carlo Study of the Spin Transport in Magnetic Materials | The resistivity in magnetic materials has been theoretically shown to depend
on the spin-spin correlation function which in turn depends on the
magnetic-field, the density of conduction electron, the magnetic ordering
stability, etc. However, these theories involved a lot of approximations, so
their validity remained t... | 0910.4619v3 |
2021-01-04 | Thermal Resistance at a Twist Boundary and Semicoherent Heterointerface | Traditional models of interfacial phonon scattering, including the acoustic
mismatch model (AMM) and diffuse mismatch model (DMM), take into account the
bulk properties of the material surrounding the interface, but not the atomic
structure and properties of the interface itself. Here, we derive a theoretical
formalism... | 2101.01058v2 |
2015-07-15 | Influence of Periodic Surface Nanopatterning Profiles on Series Resistance in Thin-Film Crystalline Silicon Heterojunction Solar Cells | In the frame of the development of thin crystalline silicon solar cell
technologies, surface nanopatterning of silicon is gaining importance. Its
impact on the material quality is, however, not yet fully controlled.We
investigate here the influence of surface nanotexturing on the series
resistance of a contacting schem... | 1507.07819v1 |
2023-01-12 | On the switching mechanism and optimisation of ion irradiation enabled 2D $MoS_2$ memristors | Memristors are prominent passive circuit elements with promising futures for
energy-efficient in-memory processing and revolutionary neuromorphic
computation. State-of-the-art memristors based on two-dimensional (2D)
materials exhibit enhanced tunability, scalability and electrical reliability.
However, the fundamental... | 2301.05260v2 |
2011-12-13 | Online in-situ X-ray diffraction setup for structural modification studies during swift heavy ion irradiation | The high energy density of electronic excitations due to the impact of swift
heavy ions can induce structural modifications in materials. We present a X-ray
diffractometer called ALIX, which has been set up at the low-energy IRRSUD
beamline of the GANIL facility, to allow the study of structural modification
kinetics a... | 1112.2832v2 |
2017-10-07 | High pressure x-ray study of spin-Peierls physics in the quantum spin chain material TiOCl | The application of pressure can induce transitions between unconventional
quantum phases in correlated materials. The inorganic compound TiOCl, composed
of chains of S=1/2 Ti ions, is an ideal realization of a spin-Peierls system
with a relatively simple unit cell. At ambient pressure, it is an insulator due
to strong ... | 1710.02632v1 |
2019-02-28 | Quenched nematic criticality separating two superconducting domes in an iron-based superconductor under pressure | The nematic electronic state and its associated nematic critical fluctuations
have emerged as potential candidates for superconducting pairing in various
unconventional superconductors. However, in most materials their coexistence
with other magnetically-ordered phases poses significant challenges in
establishing their... | 1902.11276v1 |
2020-09-03 | Topological Nature of High Temperature Superconductivity | The key to unraveling the nature of high-temperature superconductivity (HTS)
lies in resolving the enigma of the pseudogap state. The pseudogap state in the
underdoped region is a distinct thermodynamic phase characterized by
nematicity, temperature-quadratic resistive behavior, and magnetoelectric
effects. Till presen... | 2009.01763v2 |
2020-09-16 | Tailoring c-axis orientation in epitaxial Ruddlesden-Popper Pr$_{0.5}$Ca$_{1.5}$MnO$_{4}$ films | Interest for layered Ruddlesden-Popper strongly correlated manganites of
Pr$_{0.5}$Ca$_{1.5}$MnO$_4$ as well as to their thin film polymorphs is
motivated by the high temperature of charge orbital ordering above room
temperature. We report on the tailoring of the c-axis orientation in epitaxial
RP-PCMO films grown on S... | 2009.07523v1 |
2020-09-28 | Pressure-induced reconstructive phase transition in Cd$_3$As$_2$ | Cadmium arsenide Cd$_3$As$_2$ hosts massless Dirac electrons in its
ambient-conditions tetragonal phase. We report X-ray diffraction and electrical
resistivity measurements of Cd$_3$As$_2$ upon cycling pressure beyond the
critical pressure of the tetragonal phase and back to ambient conditions. We
find that at room tem... | 2009.13228v2 |
2016-03-01 | Superconductivity in HfTe5 Induced via Pressures | Recently, ZrTe5 and HfTe5 are theoretically studied to be the most promising
layered topological insulators since they are both interlayer weakly bonded
materials and also with a large bulk gap in the single layer. It paves a new
way for the study of novel topological quantum phenomenon tuned via external
parameters. H... | 1603.00514v1 |
2021-01-29 | Tunable Doping of Rhenium and Vanadium into Transition Metal Dichalcogenides for Two-Dimensional Electronics | Two-dimensional (2D) transition metal dichalcogenides (TMDCs) with unique
electrical properties are fascinating materials used for future electronics.
However, the strong Fermi level pinning effect at the interface of TMDCs and
metal electrodes always leads to high contact resistance, which seriously
hinders their appl... | 2101.12423v1 |
2020-11-05 | Temperature-dependent elastic properties of binary and multicomponent high-entropy refractory carbides | Available information concerning the elastic moduli of refractory carbides at
temperatures (T) of relevance for practical applications is sparse and/or
inconsistent. We carry out ab initio molecular dynamics (AIMD) simulations at T
= 300, 600, 900, and 1200 K to determine the temperature-dependences of the
elastic cons... | 2011.02742v1 |
2021-03-09 | Crack-free caustic magnesia-bonded refractory castables | A growing interest in designing high-alumina MgO-bonded refractory castables
has been identified in recent years due to the magnesia ability to react: (i)
with water at the initial processing stages of these materials (inducing the
precipitation of brucite phase) or (ii) with alumina, giving rise to in situ
MgAl2O4 gen... | 2103.05361v1 |
2021-03-20 | Towards Superior High Temperature Properties in Low Density AlCrFeNiTi Compositionally Complex Alloys | Three novel precipitation strengthened bcc alloys which exhibit a smooth
microstructural gradient with composition have been fabricated in bulk form by
induction casting. All three alloys are comprised of a mixture of disordered
A2-(Fe, Cr) and L2$_1$-ordered (Ni, Fe)$_{2}$AlTi type phases both as-cast and
after long-t... | 2103.11173v1 |
2021-06-02 | Dopant redistribution and activation in Ga ion-implanted high Ge content SiGe by explosive crystallization during UV nanosecond pulsed laser annealing | Explosive crystallization (EC) is often observed when using nanosecond-pulsed
melt laser annealing (MLA) in amorphous silicon (Si) and germanium (Ge). The
solidification velocity in EC is so fast that a diffusion-less crystallization
can be expected. In the contacts of advanced transistors, the active level at
the meta... | 2106.00946v1 |
2022-06-29 | Designing wake-up free ferroelectric capacitors based on the $\mathrm{HfO_2/ZrO_2}$ superlattice structure | The wake-up phenomenon widely exists in hafnia-based ferroelectric
capacitors, which causes device parameter variation over time. Crystallization
at higher temperatures have been reported to be effective in eliminating
wake-up, but high temperature may yield the monoclinic phase or generate high
concentration oxygen va... | 2206.14393v1 |
2022-09-06 | Silicide-based Josephson field effect transistors for superconducting qubits | Scalability in the fabrication and operation of quantum computers is key to
move beyond the NISQ era. So far, superconducting transmon qubits based on
aluminum Josephson tunnel junctions have demonstrated the most advanced
results, though this technology is difficult to implement with large-scale
facilities. An alterna... | 2209.02721v1 |
2023-03-21 | Thermal decoupling in high-$T_c$ cuprate superconductors | Although many years have passed since the discovery of
high-critical-temperature (high-$T_c$) superconducting materials, the
underlying mechanism is still unknown. The B1g phonon anomaly in high-Tc
cuprate superconductors has long been studied; however, the correlation between
the B1g phonon anomaly and superconductivi... | 2303.11600v1 |
2023-03-24 | A review on the advancements in the characterization of the high-pressure properties of iodates | The goal of this work is to report a systematic and balanced review of the
progress made in recent years on the high-pressure behavior of iodates, a group
of materials with multiple technological applications and peculiar behaviors
under external compression. This review article presents results obtained from
multiple ... | 2303.14215v1 |
2023-11-22 | Durable, ultrathin, and antifouling polymer brush coating for efficient condensation heat transfer | Heat exchangers are made of metals because of their high heat conductivity
and mechanical stability. Metal surfaces are inherently hydrophilic, leading to
inefficient filmwise condensation. It is still a challenge to coat these metal
surfaces with a durable, robust and thin hydrophobic layer, which is required
for effi... | 2311.13353v1 |
2023-12-01 | Insulator to Metal Transition, Spin-Phonon Coupling, and Potential Magnetic Transition Observed in Quantum Spin Liquid Candidate LiYbSe$_2$ under High Pressure | Metallization of quantum spin liquid (QSL) materials has long been considered
as a potential route to achieve unconventional superconductivity. Here we
report our endeavor in this direction by pressurizing a three-dimensional QSL
candidate, LiYbSe$_2$, with a previously unreported pyrochlore structure.
High-pressure X-... | 2312.00270v2 |
2024-01-06 | Endless Dirac nodal lines and high mobility in kagome semimetal Ni3In2Se2 single crystal | Kagome-lattice crystal is crucial in quantum materials research, exhibiting
unique transport properties due to its rich band structure and the presence of
nodal lines and rings. Here, we investigate the electronic transport properties
and perform first-principles calculations for Ni$_{3}$In$_{2}$Se$_{2}$ kagome
topolog... | 2401.03130v1 |
2024-04-18 | Omnidirectional 3D printing of PEDOT:PSS aerogels with tunable electromechanical performance for unconventional stretchable interconnects and thermoelectrics | The next generation of soft electronics will expand to the third dimension.
This will require the integration of mechanically-compliant three-dimensional
functional structures with stretchable materials. This study demonstrates
omnidirectional direct ink writing (DIW) of Poly(3,4-ethylenedioxythiophene)
polystyrene sul... | 2404.12254v1 |
2024-05-21 | Pick-and-place transfer of arbitrary-metal electrodes for van der Waals device fabrication | Van der Waals electrode integration is a promising strategy to create
near-perfect interfaces between metals and two-dimensional materials, with
advantages such as eliminating Fermi-level pinning and reducing contact
resistance. However, the lack of a simple, generalizable pick-and-place
transfer technology has greatly... | 2405.12830v1 |
2013-08-15 | Spin heat accumulation induced by tunneling from a ferromagnet | An electric current from a ferromagnet into a non-magnetic material can
induce a spin-dependent electron temperature. Here it is shown that this spin
heat accumulation, when created by tunneling from a ferromagnet, produces a
non-negligible voltage signal that is comparable to that due to the coexisting
electrical spin... | 1308.3365v2 |
2015-08-21 | In-Plane fracture of laminated fiber reinforced composites with varying fracture resistance: experimental observations and numerical crack propagation simulations | A series of experimental results on the in-plane fracture of a fiber
reinforced laminated composite panel is analyzed using the variational
multi-scale cohesive method (VMCM). The VMCM results demonstrate the influence
of specimen geometry and load distribution on the propagation of large scale
bridging cracks in the f... | 1508.06220v1 |
2016-06-17 | Atomically-thin Ohmic Edge Contacts Between Two-dimensional Materials | With the decrease of the dimensions of electronic devices, the role played by
electrical contacts is ever increasing, eventually coming to dominate the
overall device volume and total resistance. This is especially problematic for
monolayers of semiconducting transition metal dichalcogenides (TMDs), which are
promising... | 1606.05393v1 |
2017-10-04 | A phononic switch based on ferroelectric domain walls | The ease with which domain walls (DWs) in ferroelectric materials can be
written and erased provides a versatile way to dynamically modulate heat
fluxes. In this work we evaluate the thermal boundary resistance (TBR) of
180$^{\circ}$ DWs in prototype ferroelectric perovskite PbTiO$_3$ within the
numerical formalisms of... | 1710.01574v1 |
2019-09-13 | Theory of anisotropic elastoresistivity of two-dimensional extremely strongly correlated metals | There is considerable recent interest in the phenomenon of anisotropic
electroresistivity of correlated metals. While some interesting work has been
done on the iron-based superconducting systems, not much is known for the
cuprate materials. Here we study the anisotropy of elastoresistivity for
cuprates in the normal s... | 1909.06471v4 |
2020-09-04 | Relation between resistance drift and optical gap in phase change materials | The optical contrast in a phase change material is concomitant with its
structural transition. We connect these two by first recognizing that Friedel
oscillations couple electrons propagating in opposite directions and supply an
additional Coulomb energy. As the crystal switches phase, this energy acquires
time depende... | 2009.02048v1 |
2017-05-23 | Reducing Graphene Device Variability with Yttrium Sacrificial Layers | Graphene technology has made great strides since the material was isolated
more than a decade ago. However, despite improvements in growth quality and
numerous 'hero' devices, challenges of uniformity remain, restricting
large-scale development of graphene-based technologies. Here we investigate and
reduce the variabil... | 1705.09388v1 |
2019-10-24 | Magneto-memristive switching in a two-dimensional layer antiferromagnet | Memristive devices whose resistance can be hysteretically switched by
electric field or current are intensely pursued both for fundamental interest
as well as potential applications in neuromorphic computing and phase-change
memory. When the underlying material exhibits additional charge or spin order,
the resistive st... | 1910.11383v1 |
2019-11-14 | Nonvolatile Resistive Switching in Nanocrystalline Molybdenum Disulfide with Ion-Based Plasticity | Non-volatile resistive switching is demonstrated in memristors with
nanocrystalline molybdenum disulfide (MoS$_2$) as the active material. The
vertical heterostructures consist of silicon, vertically aligned MoS$_2$ and
chrome / gold metal electrodes. Electrical characterizations reveal a bipolar
and forming free switc... | 1911.06032v1 |
2023-02-20 | Extraordinary Bulk Insulating Behavior in the Strongly Correlated Materials FeSi and FeSb$_2$ | 4$f$ electron-based topological Kondo insulators have long been researched
for their potential to conduct electric current via protected surface states,
while simultaneously exhibiting unusually robust insulating behavior in their
interiors. To this end, we have investigated the electrical transport of the
3$d$-based c... | 2302.09996v1 |
2023-06-27 | Phase transitions associated with magnetic-field induced topological orbital momenta in a non-collinear antiferromagnet | Resistivity measurements are widely exploited to uncover electronic
excitations and phase transitions in metallic solids. While single crystals are
preferably studied to explore crystalline anisotropies, these usually cancel
out in polycrystalline materials. Here we show that in polycrystalline
Mn3Zn0.5Ge0.5N with non-... | 2306.15332v1 |
2023-10-20 | 3D Printed Architectured Silicones with Autonomic Self-healing and Creep-resistant Behavior | Self-healing silicones that are able to restore the functionalities and
extend the lifetime of soft devices hold great potential in many applications.
However, currently available silicones need to be triggered to self-heal or
suffer from creep-induced irreversible deformation during use. Here, we design
and print sili... | 2311.05633v1 |
2024-04-30 | Evaluation of Thermal Performance of a Wick-free Vapor Chamber in Power Electronics Cooling | Efficient thermal management in high-power electronics cooling can be
achieved using phase-change heat transfer devices, such as vapor chambers.
Traditional vapor chambers use wicks to transport condensate for efficient
thermal exchange and to prevent "dry-out" of the evaporator. However, wicks in
vapor chambers presen... | 2404.19195v1 |
2017-07-26 | Particle acceleration with anomalous pitch angle scattering in 2D MHD reconnection simulations | The conversion of magnetic energy into other forms during solar flares is one
of the outstanding open problems in solar physics. It is generally accepted
that magnetic reconnection plays a crucial role in these conversion processes.
To achieve the rapid energy release required in solar flares, an anomalous
resistivity,... | 1709.00305v1 |
2023-02-04 | Smooth, homogeneous, high-purity Nb3Sn superconducting RF resonant cavity by seed-free electrochemical synthesis | Workbench-size particle accelerators, enabled by Nb3Sn-based superconducting
radio-frequency (SRF) cavities, hold the potential of driving scientific
discovery by offering a widely accessible and affordable source of high-energy
electrons and X-rays. Thin-film Nb3Sn RF superconductors with high quality
factors, high op... | 2302.02054v2 |
2018-03-08 | Design of a nickel-base superalloy using a neural network | A new computational tool has been developed to model, discover, and optimize
new alloys that simultaneously satisfy up to eleven physical criteria. An
artificial neural network is trained from pre-existing materials data that
enables the prediction of individual material properties both as a function of
composition and... | 1803.03039v1 |
2023-04-22 | Studies of two-dimensional material resistive random-access memory by kinetic Monte Carlo simulations | Resistive memory based on 2D WS2, MoS2, and h-BN materials has been studied,
including experiments and simulations. The influences with different active
layer thicknesses have been discussed, including experiments and simulations.
The thickness with the best On/Off ratio is also found for the 2D RRAM. This
work reveals... | 2304.11345v2 |
2018-11-25 | Atomic mechanisms of fast diffusion of large atoms in Germanium | The performance of strained silicon as the channel material for transistors
has plateaued. Motivated by increasing charge-carrier mobility within the
device channel to improve transistor performance, germanium (Ge) is considered
as an attractive option as a silicon replacement due to its highest p-type
mobility in all ... | 1811.10046v1 |
2022-07-29 | Reactive Two-Step Additive Manufacturing of Ultra-high Temperature Carbide Ceramics | Ultra-high-temperature ceramics (UHTCs) are candidate structural materials
for applications that require resiliency to extreme temperature (>2000{\deg}C),
high mechanical loads, or aggressive oxidizing environments. Processing UHTC
transition metal carbides as standalone materials using additive manufacturing
(AM) meth... | 2208.00052v3 |
2003-05-29 | Structural and electrical properties of tantalum nitride thin films fabricated by using reactive radio-frequency magnetron sputtering | TaN thin film is an attractive interlayer as well as a diffusion barrier
layer in [FeN/TaN](n) multilayers for the application as potential write-head
materials in high-density magnetic recording. We synthesized two series of TaN
films on glass and Si substrates by using reactive radio-frequency sputtering
under 5-mtor... | 0305683v2 |
2011-12-08 | Structural, Thermal, Magnetic and Electronic Transport Properties of the LaNi2(Ge{1-x}P{x})2 System | Polycrystalline samples of LaNi2(Ge{1-x}P{x})2 (x = 0, 0.25, 0.50, 0.75, 1)
were synthesized and their properties investigated by x-ray diffraction (XRD),
heat capacity Cp, magnetic susceptibility chi, and electrical resistivity rho
measurements versus temperature T. These compounds all crystallize in the
body-centered... | 1112.1864v2 |
2013-08-14 | Stable pseudoanalytical computation of electromagnetic fields from arbitrarily-oriented dipoles in cylindrically stratified media | Computation of electromagnetic fields due to point sources (Hertzian dipoles)
in cylindrically stratified media is a classical problem for which analytical
expressions of the associated tensor Green's function have been long known.
However, under finite-precision arithmetic, direct numerical computations based
on the a... | 1308.3179v2 |
2019-03-01 | Coexistence of metallic and nonmetallic properties in the pyrochlore Lu$_2$Rh$_2$O$_7$ | Transition metal oxides of the $4d$ and $5d$ block have recently become the
targets of materials discovery, largely due to their strong spin-orbit coupling
that can generate exotic magnetic and electronic states. Here we report the
high pressure synthesis of Lu$_2$Rh$_2$O$_7$, a new cubic pyrochlore oxide
based on $4d^... | 1903.00399v1 |
2022-01-10 | Alloyed B-(AlxGa1-x)2O3 bulk Czochralski single B-(Al0.1Ga0.9)2O3 and polycrystals B-(Al0.33Ga0.66)2O3, B-(Al0.5Ga0.5)2O3), and property trends | In this work, bulk Czochralski-grown single crystals of 10 mol. % Al2O3
alloyed B-Ga2O3 - monoclinic 10% AGO or B-(Al0.1Ga0.9)2O3 - are obtained, which
show +0.20 eV increase in the bandgap compared with unintentionally doped
B-Ga2O3. Further, growths of 33% AGO - B-(Al0.33Ga0.67)2O3 - and 50% AGO -
B-(Al0.5Ga0.5)2O3 o... | 2201.03673v2 |
2023-02-09 | Spark Discharge Generator as a Stable and Reliable Nanoparticle Synthesis Device: Analysis of the Impact of Process and Circuit Variables on the Characteristics of Synthesized Nanoparticles | Nanotechnology offers the promise of harnessing quantum properties not
available in the bulk phase. These desirable properties are highly dependent on
size and composition. Generators that control these variables are therefore
essential for progress in the field. The spark discharge generator (SDG) is an
outstanding ae... | 2302.04760v1 |
2013-08-08 | Ultra-low Energy, High-Performance Dynamic Resistive Threshold Logic | We propose dynamic resistive threshold-logic (DRTL) design based on
non-volatile resistive memory. A threshold logic gate (TLG) performs summation
of multiple inputs multiplied by a fixed set of weights and compares the sum
with a threshold. DRTL employs resistive memory elements to implement the
weights and the thresh... | 1308.4672v1 |
2013-10-11 | Curvature dependence of the interfacial heat and mass transfer coefficients | Nucleation is often accompanied by heat transfer between the surroundings and
a nucleus of a new phase. The interface between two phases gives an additional
resistance to this transfer. For small nuclei the interfacial curvature is
high, which affects not only equilibrium quantities such as surface tension,
but also th... | 1310.3025v1 |
2014-08-30 | Anisotropic resistivity of the monolayer graphene in the trigonal warping and connected Fermi curve regimes | In the present study, the anisotropic resistivity of the monolayer graphene
has been obtained in semiclassical regime beyond the Dirac point approximation.
In particular, detailed investigations were made on the dependence of
conductivity on the Fermi energy. At low energies, in the vicinity of the Dirac
points, band e... | 1409.0130v1 |
2018-08-19 | Temperature Dependence of In-plane Resistivity and Inverse Hall Angle in NLED Holographic Model | In the strange metal phase of the high-$T_{c}$ cuprates, it is challenging to
explain the linear temperature dependence of the in-plane resistivity and the
quadratic temperature dependence of the inverse Hall angle. In this paper, we
investigate the temperature dependence of the in-plane resistivity and inverse
Hall an... | 1808.06158v1 |
2019-04-18 | Non-Stationary Polar Codes for Resistive Memories | Resistive memories are considered a promising memory technology enabling high
storage densities with in-memory computing capabilities. However, the readout
reliability of resistive memories is impaired due to the inevitable existence
of wire resistance, resulting in the sneak path problem. Motivated by this
problem, we... | 1904.08966v1 |
2019-12-06 | Write and Read Channel Models for 1S1R Crossbar Resistive Memory with High Line Resistance | Crossbar resistive memory with 1 Selector 1 Resistor (1S1R) structure is
attractive for low-cost and high-density nonvolatile memory applications. As
technology scales down to the single-nm regime, the increasing resistivity of
wordline/bitline becomes a limiting factor to device reliability. This paper
presents write/... | 1912.02963v3 |
2020-05-15 | Anomalous Electrical Conduction and Negative Temperature Coefficient of Resistance in Nanostructured Gold Resistive Switching Films | We report on the observation of non-metallic electrical conduction, resistive
switching, and a negative temperature coefficient of resistance in
cluster-assembled nanostructured gold films above the electrical percolation
and in strong-coupling regime, from room to cryogenic temperatures (24K). The
structure of the fil... | 2005.07401v1 |
2021-05-22 | Dynamic-quenching of a single-photon avalanche photodetector using an adaptive resistive switch | One of the most common approaches for quenching single-photon avalanche
diodes is to use a passive resistor in series with it. A drawback of this
approach has been the limited recovery speed of the single-photon avalanche
diodes. High resistance is needed to quench the avalanche, leading to slower
recharging of the sin... | 2105.11454v2 |
2022-09-14 | Picosecond Time-Scale Resistive Switching Monitored in Real-Time | The resistance state of filamentary memristors can be tuned by relocating
only a few atoms at interatomic distances in the active region of a conducting
filament. Thereby the technology holds promise not only in its ultimate
downscaling potential and energy efficiency but also in unprecedented speed.
Yet, the breakthro... | 2209.06732v1 |
2022-12-02 | Nondestructive KPFM-assisted Quality Control in Fabrication of GaAs High-Speed Electronics | In this paper, we report on the method of nondestructive quality control that
can be used in fabrication of GaAs high-speed electronics. The method relies on
the surface potential mapping and enables rigid in vivo analysis of transport
properties of an active electronic device incorporated into a complex
integrated cir... | 2212.01474v1 |
2023-09-22 | Terahertz scale microbunching instability driven by nonevaporable getter coating resistive-wall impedance | Non-evaporable getter (NEG) coating is widely required in the next generation
of light sources and circular $e^+e^-$ colliders for small vacuum pipes to
improve the vacuum level, which, however, also enhances the high-frequency
resistive-wall impedance and often generates a resonator-like peak in the
terahertz frequenc... | 2309.12779v1 |
2024-04-29 | Evolution of secondary electron spectrum during cosmic-ray discharge in the universe | We recently found that streaming cosmic rays (CRs) induce a resistive
electric field that can accelerate secondary electrons produced by CR
ionization. In this work, we study the evolution of the energy spectrum of
secondary electrons by numerically solving the one-dimensional Boltzmann
equation and Ohm's law. We show ... | 2404.18513v1 |
2007-03-26 | An alternative normal state c-axis resistivity model for high-Tc superconductors | An alternative model for c-axis resistivity in layered high-Tc crystalline
superconductors is proposed and has been characterized as an essentially
two-dimensional Fermi liquid. Average ionization energy is included as
additional parameter that determines the concentration of tunnelling electrons
between Cu-O2 layers. ... | 0703658v1 |
2005-02-02 | Phase transitions in Lu$_2$Ir$_3$Si$_5$ | We report the results of our investigations on a polycrystalline sample of
Lu$_2$Ir$_3$Si$_5$ which crystallizes in the U$_2$Co$_3$Si$_5$ type structure
(Ibam). These investigations comprise powder X-ray diffraction, magnetic
susceptibility, electrical resistivity and high temperature (120-300 K) heat
capacity studies.... | 0502041v2 |
2014-06-23 | Resistance of helical edges formed in a semiconductor heterostructure | Time-reversal symmetry prohibits elastic backscattering of electrons
propagating within a helical edge of a two-dimensional topological insulator.
However, small band gaps in these systems make them sensitive to doping
disorder, which may lead to the formation of electron and hole puddles. Such a
puddle -- a quantum do... | 1406.6052v2 |
2016-08-03 | Non-Fermi liquid behavior of electrical resistivity close to the nematic critical point in Fe$_{1-x}$Co$_x$Se and FeSe$_{1-y}$S$_y$ | Temperature dependence of resistivity of single crystals of
Fe$_{1-x}$Co$_x$Se and FeSe$_{1-y}$S$_y$ is studied in detail under zero and
high magnetic field (magnetoresistance), the latter of which enables to monitor
the temperature ($T$) evolution of resistivity below the onset of
superconducting transition temperatur... | 1608.01044v1 |
2017-08-01 | Heterogeneous Memristive Devices Enabled by Magnetic Tunnel Junction Nanopillars Surrounded by Resistive Silicon Switches | Emerging non-volatile memories (NVMs) have currently attracted great interest
for their potential applications in advanced low-power information storage and
processing technologies. Conventional NVMs, such as magnetic random access
memory (MRAM) and resistive random access memory (RRAM) suffer from limitations
of low t... | 1708.00372v2 |
2021-11-11 | Imaging Hydrodynamic Electrons Flowing Without Landauer-Sharvin Resistance | Electrical resistance usually originates from lattice imperfections. However,
even a perfect lattice has a fundamental resistance limit, given by the
Landauer conductance caused by a finite number of propagating electron modes.
This resistance, shown by Sharvin to appear at the contacts of electronic
devices, sets the ... | 2111.06412v1 |
2022-07-30 | Superconductor relaxation -- A must to be integrated into stability calculations | A superconductor is stable if it does not quench. Quench is a short-time
physics problem. For its deeper understanding of, and how to avoid quench, the
physics behind stability has to be analysed. A previously suggested dynamic
relaxation model is re-considered and applied to YBaCuO 123 and BSCCO 2223
high-temperature,... | 2208.00190v4 |
2023-09-25 | Non-Volatile Resistive Switching of Polymer Residues in 2D Material Memristors | Two-dimensional (2D) materials are popular candidates for emerging nanoscale
devices, including memristors. Resistive switching (RS) in such 2D material
memristors has been attributed to the formation and dissolution of conductive
filaments created by the diffusion of metal ions between the electrodes.
However, the are... | 2309.13900v1 |
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