publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2012-06-11 | Thermal Stability of Thermoelectric Materials via In Situ Resistivity Measurements | An experimental setup for determining the electrical resistivity of several
types of thermoelectric materials over the temperature range 20 < T < 550 C is
described in detail. One resistivity measurement during temperature cycling is
also explained for Cu0.01Bi2Te2.7Se0.3 while a second measurement is made on
Yb0.35Co4... | 1206.2094v1 |
2022-07-27 | Terahertz microresonators for material characterisation | Terahertz (THz) technology is rapidly evolving, and the advancement of data
and information processing devices is essential. Silicon THz microresonators
provide perfect platforms to develop compact and integrated devices that could
transform THz technology. Here we present a systematic study on the key figure
of merit ... | 2207.13818v1 |
2023-03-24 | Charge-density-wave resistive switching and voltage oscillations in ternary chalcogenide BaTiS3 | Phase change materials, which show different electrical characteristics
across the phase transitions, have attracted considerable research attention
for their potential electronic device applications. Materials with
metal-to-insulator or charge density wave (CDW) transitions such as VO2 and
1T-TaS2 have demonstrated vo... | 2303.14169v1 |
2016-02-24 | Design and optimization of resistive anode for a two-dimensional imaging triple-GEM detector | The optimization of resistive anode for two dimensional imaging detectors
which consists of a series of high resistive square pads surrounding by low
resistive strips has been studied by both numerical simulations and
experimental tests. It has been found that to obtain good detector performance,
the resistance ratio o... | 1602.07438v1 |
2017-09-19 | Considering non-uniform current distributions in magnetoresistive sensor designs and their implications for the resistance transfer function | Non-uniform current distributions of spin valves with disk shaped free layers
are investigated. In the context of spin valves, the vortex state, which is the
ground-state in many disk shaped magnetic bodies, allows for distinct parallel
channels of high and low resistivity. The readout current is thus able to evade
hig... | 1709.06394v1 |
2023-09-19 | Effects of plasma resistivity in three-dimensional full-F gyro-fluid turbulence simulations | A full-F, isothermal, electromagnetic, gyro-fluid model is used to simulate
plasma turbulence in a COMPASS-sized, diverted tokamak. A parameter scan
covering three orders of magnitude of plasma resistivity and two values for the
ion to electron temperature ratio with otherwise fixed parameters is setup and
analysed. Si... | 2309.10414v1 |
2016-11-09 | TiO$_2$-based Memristors and ReRAM: Materials, Mechanisms and Models (a Review) | The memristor is the fundamental non-linear circuit element, with uses in
computing and computer memory. ReRAM (Resistive Random Access Memory) is a
resistive switching memory proposed as a non-volatile memory. In this review we
shall summarise the state of the art for these closely-related fields,
concentrating on tit... | 1611.04456v1 |
2018-10-30 | An alternative to the topological interpretation of the transverse resistivity anomalies in SrRuO3 | We clarify the physical origin of anomalies in transverse resistivity often
observed in exotic materials, such as SrRuO3, in which the Berry curvature is
manifested in the transport properties. The previously attributed mechanism for
the anomalies, the topological Hall effect (THE), is refuted by our thorough
investiga... | 1810.12529v1 |
2004-11-26 | The Acceleration Mechanism of Resistive MHD Jets Launched from Accretion Disks | We analyzed the results of non-linear resistive magnetohydrodynamical (MHD)
simulations of jet formation to study the acceleration mechanism of
axisymmetric, resistive MHD jets. The initial state is a constant angular
momentum, polytropic torus threaded by weak uniform vertical magnetic fields.
The time evolution of th... | 0411712v1 |
2016-10-30 | Temperature and Humidity Dependence of Resistance in Nano-Diamond Powder | The electrical resistance of detonation nano-diamond powders was measured
from liquid nitrogen temperature to room temperature and in relative humidity
environments from around 10% to 100%. After sample exposures of several hours
at 100% relative humidity at room temperature (around 295 K), when the
temperature was red... | 1611.02242v2 |
2018-07-04 | Gate controlled large resistance switching driven by charge density wave in 1T-TaS2/2H-MoS2 heterojunction | 1T-TaS2 is a layered material that exhibits charge density wave (CDW) induced
distinct electrical resistivity phases and has attracted a lot of attention for
interesting device applications. However, such resistivity switching effects
are often weak, and cannot be modulated by an external gate voltage - limiting
their ... | 1807.01652v2 |
2008-10-08 | Performance Analysis of 60nm gate length III-V InGaAs HEMTs: Simulations vs. experiments | An analysis of recent experimental data for high-performance In0.7Ga0.3As
high electron mobility transistors (HEMTs) is presented. Using a fully quantum
mechanical, ballistic model, we simulate In0.7Ga0.3As HEMTs with gate lengths
of LG = 60nm, 85, and 135 nm and compare the result to the measured I-V
characteristics i... | 0810.1540v1 |
2008-12-26 | Flux quanta driven by high-density currents in low-impurity V3Si and LuNi2B2C: free flux flow and flux-core size effect | High density direct currents (DC) are used to drive flux quanta via the
Lorentz force towards a highly ordered "free flux flow" (FFF) dynamic state,
made possible by the weak-pinning environment of high-quality, single-crystal
samples of two low-Tc superconducting compounds, V3Si and LuNi2B2C. We report
the effect of t... | 0812.4715v4 |
2020-06-01 | Radiation hardness of GaAs: Cr and Si sensors irradiated by electron beam | The interest in using the radiation detectors based on high resistive
chromium-compensated GaAs (GaAs:Cr) in high energy physics and others applied
fields has been growing steadily due to its numerous advantages over others
classical materials. High radiation hardness at room temperature stands out and
needs to be syst... | 2006.01254v1 |
2021-02-04 | Quantum Transport in Two-Dimensional WS$_2$ with High-Efficiency Carrier Injection Through Indium Alloy Contacts | Two-dimensional transition metal dichalcogenides (TMDCs) have properties
attractive for optoelectronic and quantum applications. A crucial element for
devices is the metal-semiconductor interface. However, high contact resistances
have hindered progress. Quantum transport studies are scant as low-quality
contacts are i... | 2102.02489v1 |
2021-08-11 | Single-domain perpendicular magnetization induced by the coherent O 2p-Ru 4d hybridized state in an ultra-high-quality SrRuO3 film | We investigated the Ru 4d and O 2p electronic structure and magnetic
properties of an ultra-high-quality SrRuO3 film on SrTiO3 grown by
machine-learning-assisted molecular beam epitaxy. The high itinerancy and long
quantum lifetimes of the quasiparticles in the Ru 4d t2g-O 2p hybridized
valence band are confirmed by ob... | 2108.04980v1 |
2009-08-03 | Resistivity of Mn$_{1-x}$Fe$_x$Si single crystals: Evidence for quantum critical behavior | Resistivity measurements have been made on Mn$_{1-x}$Fe$_x$Si single crystals
between 2 and 300K for $x$ = 0, 0.05, 0.08, 0.12 and 0.15. Fe doping is found
to depress the magnetic ordering temperature from 30K for $x$ = 0 to below 2K
for $x$ = 0.15. Although Fe doping results in a large increase of the
low-temperature ... | 0908.0294v1 |
2012-10-09 | Effect of back-gate on contact resistance and on channel conductance in graphene-based field-effect transistors | We study the contact resistance and the transfer characteristics of
back-gated field effect transistors of mono- and bi-layer graphene. We measure
specific contact resistivity of ~7kohm*um2 and ~30kohm*um2 for Ni and Ti,
respectively. We show that the contact resistance is a significant contributor
to the total source-... | 1210.2531v1 |
2013-07-01 | Magnetic and transport parameters of LSMO and YBCO/LSMO films deposited on sapphire substrates | The La0.7Sr0.3MnO3 (LSMO) layers and YBa2Cu3O7-{\delta}/La0.7Sr0.3MnO3
(YBCO/LSMO) bilayers were grown by magnetron sputtering on sapphire (Al2O3 or
ALO) substrates. Temperature dependences of resistance of single LSMO films,
grown on ALO substrates were typical for polycrystalline manganite materials
and the resistanc... | 1307.0302v1 |
2015-01-27 | Realization of a reversible switching in TaO2 polymorphs via Peierls distortion for resistance random access memory | Transition-metal-oxide based resistance random access memory is a promising
candidate for next-generation universal non-volatile memories. Searching and
designing appropriate new materials used in the memories becomes an urgent
task. Here, a new structure with the TaO2 formula was predicted using
evolutionary algorithm... | 1501.06632v1 |
2015-02-09 | Four-Probe Methods for Measuring the Resistivity of Samples in the Form of Rectangular Parallelepipeds | The problem of measuring the resistivity of isotropic samples of finite
dimensions in the form of rectangular parallelepipeds using the four-probe
technique was considered. Two variants of contact arrangements were studied:
(1) four collinear probes are positioned on one side of a sample symmetrically
with respect to t... | 1502.02600v1 |
2019-12-10 | Resistance Drift in Ge2Sb2Te5 Phase Change Memory Line Cells at Low Temperatures and Its Response to Photoexcitation | Resistance drift in phase change materials is characterized in amorphous
phase change memory line-cells from 300 K to 125 K range and is observed to
follow the previously reported power-law behavior with drift coefficients in
the 0.07 to 0.11 range in dark. While these drift coefficients measured in dark
are similar to... | 1912.04480v2 |
2022-04-04 | Inter- to Intra-Layer Resistivity Anisotropy of NdFeAs(O,H) with Various Hydrogen Concentrations | With molecular beam epitaxy and topotactic chemical reaction, we prepared
NdFeAs(O,H) epitaxial thin films with various hydrogen concentrations on
5{\deg} vicinal cut MgO substrates. By measuring the resistivities along the
longitudinal and transversal directions, the ab plane and the c axis
resistivities (\{rho}_ab an... | 2204.01554v1 |
2020-04-28 | A Route to High-Toughness Battery Electrodes | There is increasing interest in materials that combine energy-storing
functions with augmented mechanical properties, ranging from flexibility in
bending to stretchability to structural properties. In the case of lithium-ion
batteries, these mechanical functions could enable their integration in
emerging technologies s... | 2004.13350v1 |
2023-02-02 | High-entropy silicide superconductors with W$_{5}$Si$_{3}$-type structure | We report the synthesis, crystal structure and physical properties of two new
high-entropy silicides (HESs), namely
(Nb$_{0.1}$Mo$_{0.3}$W$_{0.3}$Re$_{0.2}$Ru$_{0.1}$)$_{5}$Si$_{3}$ and
(Nb$_{0.2}$Mo$_{0.3}$W$_{0.3}$Re$_{0.1}$Ru$_{0.1}$)$_{5}$Si$_{3}$. Structural
analysis indicates that both HESs consist of a (nearly) ... | 2302.00844v1 |
2024-01-15 | Fatigue Behavior of High-Entropy Alloys | High-entropy alloys (HEAs) refer to alloys composed of five or more elements
in equal or near-equal amounts or in an atomic concentration range of 5 to 35
atomic percent (at%). Different elemental ratios will affect the
microstructures of HEAs and provide them with unique properties. Based on past
research, HEAs have e... | 2401.07418v1 |
2024-01-26 | Accelerated intermetallic phase amorphization in a Mg-based high-entropy alloy powder | We describe a novel mechanism for the synthesis of a stable high-entropy
alloy powder from an otherwise immiscible Mg-Ti rich metallic mixture by
employing high-energy mechanical milling. The presented methodology expedites
the synthesis of amorphous alloy powder by strategically injecting entropic
disorder through the... | 2401.15197v2 |
2024-03-28 | High Mobility Charge Transport in a Multicarrier Altermagnet CrSb | A newly identified magnetic phase called altermagnet is being actively
studied because of its unprecedented spin-dependent phenomena. Among the
candidate materials, CrSb has a particularly high transition temperature and a
large spin-splitting energy, but its transport properties have remained
unexplored. In this study... | 2403.19233v1 |
2014-02-26 | MoS2 P-type Transistors and Diodes Enabled by High Workfunction MoOx Contacts | The development of low-resistance source/drain contacts to transition metal
dichalcogenides (TMDCs) is crucial for the realization of high-performance
logic components. In particular, efficient hole contacts are required for the
fabrication of p-type transistors with MoS2, a model TMDC. Previous studies
have shown that... | 1402.6632v1 |
2015-03-23 | Electron-Irradiation Induced Nanocrystallization of Pb(II) in Silica Gels Prepared in High Magnetic Field | In a previous study, structure of silica gels prepared in a high magnetic
field was investigated. While a direct application of such anisotropic silica
gels is for an optical anisotropic medium possessing chemical resistance, we
show here their possibility of medium in materials processing. In this
direction, for examp... | 1503.06863v1 |
2017-04-07 | Thermopower and thermal conductivity in the Weyl semimetal NbP | The Weyl semimetal NbP exhibits an extremely large magnetoresistance (MR) and
an ultra-high mobility. The large MR originates from a combination of the
nearly perfect compensation between electron- and hole-type charge carriers and
the high mobility, which is relevant to the topological band structure. In this
work we ... | 1704.02241v2 |
2020-10-29 | Two-dimensional hole gas in organic semiconductors | A highly conductive metallic gas that is quantum mechanically confined at a
solid-state interface is an ideal platform to explore nontrivial electronic
states that are otherwise inaccessible in bulk materials. Although
two-dimensional electron gas (2DEG) has been realized in conventional
semiconductor interfaces, examp... | 2010.15883v1 |
2021-07-29 | Synergetic enhancement of power factor and suppression of lattice thermal conductivity via electronic structure modification and nanostructuring on Ni and B co-doped p-type Si-Ge alloy | For simultaneously achieving the high-power factor and low lattice thermal
conductivity of Si-Ge based thermoelectric materials, we employed, in this
study, constructively modifying the electronic structure near the chemical
potential and nano-structuring by low temperature and high-pressure sintering
on nano-crystalli... | 2107.13778v1 |
2021-09-03 | Growth and characterization of high-quality single-crystalline SnTe retaining cubic symmetry down to the lowest temperature studied | SnTe, an archetypical topological crystalline insulator, often shows a
transition from a highly symmetric cubic phase to a rhombohedral structure at
low temperatures. In order to achieve the highly symmetric cubic phase at low
temperatures suitable for quantum behaviour, we have employed the modified
Bridgman method to... | 2109.01420v2 |
2021-11-22 | High-entropy ceramics: propelling applications through disorder | Disorder enhances desired properties, as well as creating new avenues for
synthesizing materials. For instance, hardness and yield stress are improved by
solid-solution strengthening, a result of distortions and atomic size
mismatches. Thermo-chemical stability is increased by the preference of
chemically disordered mi... | 2111.11519v1 |
2022-11-08 | Observation of room-temperature ferroelectricity in elemental Te nanowires | Ferroelectrics are essential in low-dimensional memory devices for multi-bit
storage and high-density integration. A polar structure is a necessary premise
for ferroelectricity, mainly existing in compounds. However, it is usually rare
in elemental materials, causing a lack of spontaneous electric polarization.
Here, w... | 2211.04066v1 |
2009-07-17 | Study of timing properties of single gap high-resistive bakelite RPC | The time resolution for several single gap (2 mm) prototype Resistive Plate
Chambers (RPC) made of high resistive (bulk resistivity ~ 10^10 - 10^12 ohm
cm), 2 mm thick matt finished bakelite paper laminates with silicone coating on
the inner surfaces, has been measured. The time resolution for all the modules
has been ... | 0907.2982v1 |
2003-09-16 | Metal-insulator transition in EuO | It is shown that the spectacular metal-insulator transition in Eu-rich EuO
can be simulated within an extended Kondo lattice model. The different orders
of magnitude of the jump in resistivity in dependence on the concentration of
oxygen vacancies as well as the low-temperature resistance minimum in
high-resistivity sa... | 0309369v2 |
2016-08-08 | Quantum Criticality and DBI Magneto-resistance | We use the DBI action from string theory and holography to study the
magneto-resistance at quantum criticality with hyperscaling violation. We find
and analyze a rich class of scaling behaviors for the magneto-resistance. A
special case describes the scaling results found in pnictides by Hayers et al.
in~\cite{analytis... | 1608.02598v2 |
2023-09-19 | Resistivity of the two-dimensional Bose-Hubbard model at weak coupling | We calculate the weak-coupling resistivity of the two-dimensional Bose
Hubbard model, comparing with the more familiar fermionic case. At high
temperature the resistivity is linear in $T$, while in the low temperature
normal state it is exponentially suppressed. We explore the density dependence
and calculate the momen... | 2309.10782v1 |
2018-09-24 | Ionic Tuning of Cobaltites at the Nanoscale | Control of materials through custom design of ionic distributions represents
a powerful new approach to develop future technologies ranging from spintronic
logic and memory devices to energy storage. Perovskites have shown particular
promise for ionic devices due to their high ion mobility and sensitivity to
chemical s... | 1809.08728v1 |
2020-02-17 | Ductile and brittle crack-tip response in equimolar refractory high-entropy alloys | Understanding the strengthening and deformation mechanisms in refractory
high-entropy alloys (HEAs), proposed as new high-temperature material, is
required for improving their typically insufficient room-temperature ductility.
Here, density-functional theory simulations and a continuum mechanics analysis
were conducted... | 2002.07013v1 |
2019-08-22 | Non-localized states and high hole mobility in amorphous germanium | Covalent amorphous semiconductors, such as amorphous silicon (a-Si) and
germanium (a-Ge), are commonly believed to have localized electronic states at
the top of the valence band and the bottom of the conduction band. Electrical
conductivity is thought to be by the hopping mechanism through localized
states. The carrie... | 1908.08246v1 |
2020-11-20 | StressNet: Deep Learning to Predict Stress With Fracture Propagation in Brittle Materials | Catastrophic failure in brittle materials is often due to the rapid growth
and coalescence of cracks aided by high internal stresses. Hence, accurate
prediction of maximum internal stress is critical to predicting time to failure
and improving the fracture resistance and reliability of materials. Existing
high-fidelity... | 2011.10227v1 |
2022-05-16 | Single Crystalline 2D Material Nanoribbon Networks for Nanoelectronics | The last decade has seen a flurry of studies related to graphene nanoribbons
owing to their potential applications in the quantum realm. However, little
experimental work has been reported towards nanoribbons of other 2D materials
due to the absence of synthesis routes. Here, we propose a universal approach
to synthesi... | 2205.09507v1 |
2023-04-18 | Controllable Strain-driven Topological Phase Transition and Dominant Surface State Transport in High-Quality HfTe5 Samples | Controlling materials to create and tune topological phases of matter could
potentially be used to explore new phases of topological quantum matter and to
create novel devices where the carriers are topologically protected. It has
been demonstrated that a trivial insulator can be converted into a topological
state by m... | 2304.09072v1 |
2016-12-17 | Electric Properties of Dirac Fermions Captured into 3D Nanoporous Graphene Networks | Graphene, as a promising material of post-silicon electronics, opens a new
paradigm for the novel electronic properties and device applications. On the
other hand, the 2D feature of graphene makes it technically challenging to be
integrated into 3D transistors with a sufficient processor capacity. Although
there are ma... | 1612.05716v1 |
2017-11-24 | Stability of Thin Film Refractory Plasmonic Materials Taken to High Temperatures in Air | Materials such as W, TiN, and SrRuO3 (SRO) have been suggested as promising
alternatives to Au and Ag in plasmonic applications owing to their refractory
properties. However, investigation of the reproducibility of the optical
properties after thermal cycling at high operational temperatures is so far
lacking. Here, th... | 1711.08923v1 |
2016-03-17 | Transport evidence for the three-dimensional Dirac semimetal phase in ZrTe5 | Topological Dirac semimetal is a newly discovered class of materials and has
attracted intense attentions. This material can be viewed as a
three-dimensional (3D) analogue of graphene and has linear energy dispersion in
bulk, leading to a range of exotic transport properties. Here we report direct
quantum transport evi... | 1603.05351v2 |
2022-06-16 | Scalable Composites Benefiting from Transition-Metal Oxides as Cathode Materials for Efficient Lithium-Sulfur Batteries | Composite materials achieved by including transition-metal oxides with
different structures and morphologies in sulfur are suggested as scalable
cathodes for high-energy lithium-sulfur (Li-S) batteries. The composites
contain 80 wt.% sulfur and 20 wt.% of either MnO2 or TiO2, leading to a sulfur
content in the electrod... | 2206.14569v1 |
2024-01-25 | Spatially Resolved High Voltage Kelvin Probe Force Microcopy: A Novel Avenue for Examining Electrical Phenomena at Nanoscale | Kelvin probe microscopy (KPFM) is a well-established scanning probe
technique, used to measure surface potential accurately; it has found extensive
use in the study of a range of materials phenomena. In its conventional form,
KPFM frustratingly precludes imaging samples or scenarios where large surface
potential exists... | 2401.14124v1 |
2024-02-05 | High Strain Engineering of a Suspended WSSe Monolayer Membrane by Indentation and Measured by Tip-enhanced Photoluminescence | Straintronics involves the manipulation and regulation of the electronic
characteristics of 2D materials through the use of macro- and nano-scale strain
engineering. In this study, we utilized an atomic force microscope (AFM)
coupled with an optical system to perform indentation measurements and
tip-enhanced photolumin... | 2402.03061v1 |
2019-08-11 | Magnetotransport as diagnostic of spin reorientation: kagome ferromagnet as a case study | While in most ferro or antiferromagnetic materials there is a unique
crystallographic direction, including crystallographically equivalent
directions, in which the moments like to point due to spin-orbit coupling, in
some, the direction of the spin reorients as a function of a certain physical
parameter such as tempera... | 1908.03927v1 |
2021-11-22 | Shape-Dependent Multi-Weight Magnetic Artificial Synapses for Neuromorphic Computing | In neuromorphic computing, artificial synapses provide a multi-weight
conductance state that is set based on inputs from neurons, analogous to the
brain. Additional properties of the synapse beyond multiple weights can be
needed, and can depend on the application, requiring the need for generating
different synapse beh... | 2111.11516v2 |
2014-11-04 | Tackling drug resistant infection outbreaks of global pandemic Escherichia coli ST131 using evolutionary and epidemiological genomics | High-throughput molecular screening is required to investigate the origin and
diffusion of antimicrobial resistance in pathogen outbreaks. The most frequent
cause of human infection is Escherichia coli, which is dominated by sequence
type 131 (ST131), a set of rapidly radiating pandemic clones. The highly
infectious cl... | 1411.0905v3 |
2014-09-25 | Recycled nylon fibers as cement mortar reinforcement | We investigate engineering applications of recycled nylon fibers obtained
from waste fishing nets, focusing our attention on the use of recycled nylon
fibers as tensile reinforcement of cementitious mortars. We begin by
characterizing the tensile behavior of both unconditioned and alkali-cured
recycled nylon fibers obt... | 1409.7258v4 |
2019-05-14 | Ohmic contact engineering in few-layer black Phosphorus field effect transistors | Achieving good quality Ohmic contacts to van der Waals materials is a
challenge, since at the interface between metal and van der Waals material,
different conditions can occur, ranging from the presence of a large energy
barrier between the two materials to the metallization of the layered material
below the contacts.... | 1905.05649v1 |
2019-06-24 | Conductivity of Dirac-like surface states in correlated honeycomb transition metal oxide Mott insulators | The search for materials with novel and unusual electronic properties is at
the heart of condensed matter physics as well as the basis to develop
conceptual new technologies. In this context, the correlated honeycomb
transition metal oxides attract large attention for both, being a possible
experimental realization of ... | 1906.09809v2 |
2020-07-22 | Impact of Li$_{2.9}$B$_{0.9}$S$_{0.1}$O$_{3.1}$ glass additive on the structure and electrical properties of the LATP-based ceramics | The existing solid electrolytes for lithium ion batteries suffer from low
total ionic conductivity, which restricts its usefulness for the lithium-ion
battery technology. Among them, the NASICON-based materials, such as
Li1.3Al0.3Ti1.7(PO4)3 (LATP) exhibit low total ionic conductivity due to highly
resistant grain boun... | 2007.11244v2 |
2020-12-16 | Anisotropic phonon-mediated electronic transport in chiral Weyl semimetals | Discovery and observations of exotic, quantized optical and electrical
responses have sparked renewed interest in nonmagnetic chiral crystals. Within
this class of materials, six group V transition metal ditetrelides, that is,
XY$_2$ (X = V, Nb, Ta and Y = Si, Ge), host composite Weyl nodes on
high-symmetry lines, with... | 2012.09207v1 |
2022-08-15 | Valley-coherent quantum anomalous Hall state in AB-stacked MoTe2/WSe2 bilayers | Moir\'e materials provide fertile ground for the correlated and topological
quantum phenomena. Among them, the quantum anomalous Hall (QAH) effect, in
which the Hall resistance is quantized even under zero magnetic field, is a
direct manifestation of the intrinsic topological properties of a material and
an appealing a... | 2208.07452v1 |
2022-09-26 | Evaluating Effects of Geometry and Material Composition on Production of Transversely Shaped Beams from Diamond Field Emission Array Cathodes | Field emission cathodes (FECs) are attractive for the next generation of
injectors due to their ability to provide high current density bright beams
with low intrinsic emittance. One application of FECs worthy of special
attention is to provide transversely shaped electron beams for emittance
exchange that translates a... | 2209.13047v1 |
2023-04-13 | Effect of hirtisation on the roughness and fatigue performance of porous titanium lattice structures | Additive manufacturing (AM) has enabled the fabrication of extremely complex
components such as porous metallic lattices, which have applications in
aerospace, automotive, and in particular biomedical devices. The fatigue
resistance of these materials is currently an important limitation however, due
to manufacturing d... | 2304.06621v1 |
2024-03-15 | An inflated dynamic Laplacian to track the emergence and disappearance of semi-material coherent sets | Lagrangian methods continue to stand at the forefront of the analysis of
time-dependent dynamical systems. Most Lagrangian methods have criteria that
must be fulfilled by trajectories as they are followed throughout a given
finite flow duration. This key strength of Lagrangian methods can also be a
limitation in more c... | 2403.10360v1 |
2024-03-20 | Tailoring Physical Properties of Crystals through Synthetic Temperature Control: A Case Study for new Polymorphic NbFeTe2 phases | Growth parameters play a significant role in the crystal quality and physical
properties of layered materials. Here we present a case study on a van der
Waals magnetic NbFeTe2 material. Two different types of polymorphic NbFeTe2
phases, synthesized at different temperatures, display significantly different
behaviors in... | 2403.13596v1 |
2022-07-06 | Proposal for semiconductor-free negative differential resistance tunnel diode with ultra-high peak-to-valley current ratio | The negative differential resistance (NDR) tunnel diodes are promising
alternative devices for beyond-CMOS computing as they offer several potential
applications when integrated with transistors. We propose a novel
semiconductor-free NDR tunnel diode concept that exhibits an ultra-high
peak-to-valley current ratio (PVC... | 2207.02593v2 |
2001-02-12 | Temperature- and magnetic-field-dependent resistivity of MgB2 sintered at high temperature and high pressure condition | We report the temperature- and magnetic-field-dependent resistivity of MgB2
sintered at high temperature and high pressure condition. The superconducting
transition width for the resistivity measurement was about 0.4 K, and the
low-field magnetization showed a sharp superconducting transition with a
transition width of... | 0102215v4 |
2017-03-01 | Size Dependence of Nanoscale Wear of Silicon Carbide | Nanoscale, single-asperity wear of single-crystal silicon carbide (sc-SiC)
and nanocrystalline silicon carbide (nc-SiC) is investigated using
single-crystal diamond nanoindenter tips and nanocrystalline diamond atomic
force microscopy (AFM) tips under dry conditions, and the wear behavior is
compared to that of single-... | 1703.01181v1 |
2022-02-09 | Scalable $\rm Al_2O_3-TiO_2$ Conductive Oxide Interfaces as Defect Reservoirs for Resistive Switching Devices | Resistive switching devices herald a transformative technology for memory and
computation, offering considerable advantages in performance and energy
efficiency. Here we employ a simple and scalable material system of conductive
oxide interfaces and leverage their unique properties for a new type of
resistive switching... | 2202.04477v2 |
2019-04-07 | Phase field modelling of crack propagation in functionally graded materials | We present a phase field formulation for fracture in functionally graded
materials (FGMs). The model builds upon homogenization theory and accounts for
the spatial variation of elastic and fracture properties. Several paradigmatic
case studies are addressed to demonstrate the potential of the proposed
modelling framewo... | 1904.08749v1 |
2009-05-13 | Reliability of resistivity quantification for shallow subsurface water processes | The reliability of surface-based electrical resistivity tomography (ERT) for
quantifying resistivities for shallow subsurface water processes is analysed. A
method comprising numerical simulations of water movement in soil and
forward-inverse modeling of ERT surveys for two synthetic data sets is
presented. Resistivity... | 0905.2117v1 |
2009-06-17 | Resistive MHD jet simulations with large resistivity | Axisymmetric resistive MHD simulations for radially self-similar initial
conditions are performed, using the NIRVANA code. The magnetic diffusivity
could occur in outflows above an accretion disk, being transferred from the
underlying disk into the disk corona by MHD turbulence (anomalous turbulent
diffusivity), or as ... | 0906.3254v1 |
2011-12-29 | Magnetospheric Accretion and Ejection of Matter in Resistive Magnetohydrodynamic Simulations | The ejection of matter in the close vicinity of a young stellar object is
investigated, treating the accretion disk as a gravitationally bound reservoir
of matter. By solving the resistive MHD equations in 2D axisymmetry using our
version of the Zeus-3D code with newly implemented resistivity, we study the
effect of ma... | 1112.6226v2 |
2016-10-17 | Nonlinear Resistivity for Magnetohydrodynamical Models | A new formulation of the plasma resistivity that arises from the collisional
momentum-transfer rate between electrons and ions is presented. The resistivity
computed herein is shown to depend not only on the temperature and density but
also on all other polynomial velocity-space moments of the distribution
function, su... | 1610.05193v2 |
2020-03-09 | Quantum mechanical current-to-voltage conversion with quantum Hall resistance array | Accurate measurement of the electric current requires a stable and calculable
resistor for an ideal current to voltage conversion. However, the temporal
resistance drift of a physical resistor is unavoidable, unlike the quantum Hall
resistance directly linked to the Planck constant h and the elementary charge
e. Lack o... | 2003.04464v1 |
2021-02-11 | Suppressing evolution through environmental switching | Ecology and evolution under changing environments are important in many
subfields of biology with implications for medicine. Here, we explore an
example: the consequences of fluctuating environments on the emergence of
antibiotic resistance, which is an immense and growing problem. Typically, high
doses of antibiotics ... | 2102.05813v2 |
2023-12-08 | Electron-hole collision-limited resistance of gapped graphene | Collisions between electrons and holes can dominate the carrier scattering in
clean graphene samples in the vicinity of charge neutrality point. While
electron-hole limited resistance in pristine gapless graphene is well-studied,
its evolution with induction of band gap $E_g$ is less explored. Here, we
derive the funct... | 2312.05066v1 |
2019-03-18 | Experimental and Theoretical Investigation on the Possible Half-metallic Behaviour of Equiatomic Quaternary Heusler Alloys: CoRuMnGe and CoRuVZ (Z = Al, Ga) | In this report, structural, electronic, magnetic and transport properties of
quaternary Heusler alloys CoRuMnGe and CoRuVZ (Z = Al, Ga) are investigated.
All the three alloys are found to crystallize in cubic structure. CoRuMnGe
exhibits L2$_1$ structure whereas, the other two alloys have B2-type disorder.
For CoRuMnGe... | 1903.07265v2 |
2021-05-06 | High-sensitivity of initial SrO growth on the residual resistivity in epitaxial thin films of SrRuO$_3$ on SrTiO$_3$ (001) | The growth of SrRuO$_3$ (SRO) thin film with high-crystallinity and low
residual resistivity (RR) is essential to explore its intrinsic properties.
Here, utilizing the adsorption-controlled growth technique, the growth
condition of initial SrO layer on TiO$_2$-terminated SrTiO$_3$ (STO) (001)
substrate was found to be ... | 2105.02404v1 |
2021-12-01 | Synthesis and study of (Na, Zr) and (Ca, Zr) phosphate-molybdates and phosphate-tungstates: Thermal expansion behavior, radiation test and hydrolytic stability | Thermal expansion behavior at high temperatures of synthesized
Na$_{1-x}$Zr$_2$(PO$_4$)$_{3-x}$(XO$_4$)$_x$, and
Ca$_{1-x}$Zr$_2$(PO$_4$)$_{3-x}$(XO$_4$)$_x$, X = Mo, W compounds has been
investigated. Ceramics with relatively high density (more than 97.5%) were
produced by Spark Plasma Sintering (SPS) of submicron pow... | 2112.00373v1 |
2021-02-22 | High T$_C$ ferromagnetic inverse Heusler alloys: A comparative study of Fe$_2$RhSi and Fe$_2$RhGe | We report the results of experimental investigations on structural, magnetic,
resistivity, caloric properties of Fe$_2$RhZ (Z=Si,Ge) along with
\textit{ab-initio} band structure calculations using first principle
simulations. Both these alloys are found to crystallize in inverse Heusler
structure but with disorder in t... | 2102.10967v1 |
1995-11-10 | Contrasting Dynamic Spin Susceptibility Models and their Relation to High Temperature Superconductivity | We compare the normal-state resistivities $\rho$ and the critical
temperatures $T_c$ for superconducting $d_{x^2-y^2}$ pairing due to
antiferromagnetic (AF) spin fluctuation exchange in the context of the two
phenomenological dynamical spin susceptibility models, recently proposed by
Millis, Monien, and Pines (MMP) and... | 9511051v1 |
2011-11-14 | High Field (14Tesla) Magneto Transport of Sm/PrFeAsO | We report high field magneto transport of Sm/PrFeAsO. Below spin density wave
transition (TSDW), the magneto-resistance (MR) of Sm/PrFeAsO is positive and
increasing with decreasing temperature. The MR of SmFeAsO, is found 16%,
whereas the same is 21.5% in case of PrFeAsO, at 2.5 K under applied magnetic
field of 14 Te... | 1111.3143v2 |
2013-02-25 | On the specifics of the electrical conductivity anomalies in PVC nanocomposites | A qualitative model describing the "anomalous" features of the conductivity
of polymer nanocomposites, in particular, switching to the conducting state in
relatively thick (tens of microns or more) of flexible PVC films is considered.
In previously published experimental results, change of conductivity by 10 or
more or... | 1302.5993v1 |
2016-12-15 | The properties of ultrapure delafossite metals | Although they were first synthesized in chemistry laboratories nearly fifty
years ago, the physical properties of the metals PdCoO2, PtCoO2 and PdCrO2 have
only more recently been studied in detail. The delafossite structure contains
triangular co-ordinated atomic layers, and electrical transport in the
delafossite met... | 1612.04948v1 |
2017-10-05 | Dual-wavelength Photo-Hall effect spectroscopy of deep levels in high resistive CdZnTe with negative differential photoconductivity | Photo-Hall effect spectroscopy was used in the study of deep levels in high
resistive CdZnTe. The monochromator excitation in the photon energy range
0.65-1.77 eV was complemented by a laser diode high-intensity excitation at
selected photon energies. A single sample characterized by multiple unusual
features like nega... | 1710.01945v1 |
2020-02-25 | Hydrogenated amorphous silicon detectors for particle detection, beam flux monitoring and dosimetry in high-dose radiation environment | Hydrogenated amorphous silicon (a-Si:H) has remarkable radiation resistance
properties and can be deposited on a lot of different substrates. A-Si:H based
particle detectors have been built since mid 1980s as planar p-i-n or Schottky
diode structures; the thickness of these detectors ranged from 1 to 50 micron.
However... | 2002.10848v1 |
2021-01-29 | Wide-range epitaxial strain control of electrical and magnetic properties in high-quality SrRuO3 films | Epitaxial strain in 4d ferromagnet SrRuO3 films is directly linked to the
physical properties through the strong coupling between lattices, electrons,
and spins. It provides an excellent opportunity to tune the functionalities of
SrRuO3 in electronic and spintronic devices. However, a thorough understanding
of the epit... | 2101.12376v1 |
2020-05-16 | Pressure-induced Topological and Structural Phase Transitions in an Antiferromagnetic Topological Insulator | Recently, natural van der Waals heterostructures of (MnBi2Te4)m(Bi2Te3)n have
been theoretically predicted and experimentally shown to host tunable magnetic
properties and topologically nontrivial surface states. In this work, we
systematically investigate both the structural and electronic responses of
MnBi2Te4 and Mn... | 2005.08015v1 |
2020-08-03 | Solute hydrogen and deuterium observed at the near atomic scale in high-strength steel | Observing solute hydrogen (H) in matter is a formidable challenge, yet,
enabling quantitative imaging of H at the atomic-scale is critical to
understand its deleterious influence on the mechanical strength of many
metallic alloys that has resulted in many catastrophic failures of engineering
parts and structures. Here,... | 2008.00684v1 |
2021-07-01 | Singular angular magnetoresistance and sharp resonant features in a high-mobility metal with open orbits, ReO3 | We report high-resolution angular magnetoresistance (AMR) experiments
performed on crystals of ReO$_3$ with high mobility (90,000 cm$^2$/Vs at 2 K)
and extremely low residual resistivity (5-8 n$\Omega$cm). The Fermi surface,
comprised of intersecting cylinders, supports open orbits. The resistivity
$\rho_{xx}$ in a mag... | 2107.00742v1 |
2021-07-07 | Development and validation of electrical-insulating Al2O3 coatings for high-temperature liquid PbLi applications | Electrical-insulating coatings are of great importance for liquid-metal
breeder/coolant based systems relevant to fusion power plants. In specific to
Pb-16Li eutectic, a candidate breeder material, such coatings are being
actively investigated for their criticality in addressing various
functionalities. For such applic... | 2107.03244v1 |
2021-09-26 | Tomographic Volumetric Additive Manufacturing of Silicon Oxycarbide Ceramics | Ceramics are highly technical materials with properties of interest for
multiple industries. Precisely because of their high chemical, thermal, and
mechanical resistance, ceramics are difficult to mold into complex shapes. A
possibility to make convoluted ceramic parts is to use preceramic polymers
(PCP) in liquid form... | 2109.12680v1 |
2022-11-16 | Characterisation of Gamma-irradiated MCz-Silicon Detectors with a High-$K$ Negative Oxide as Field Insulator | The high-luminosity operation of the Tracker in the Compact Muon Solenid
(CMS) detector at the Large Hadron Collider (LHC) experiment calls for the
development of silicon-based sensors. This involves implementation of
AC-coupling to micro-scale pixel sensor areas to provide enhanced isolation of
radiation-induced leaka... | 2211.09158v2 |
2023-07-12 | Extrinsic Anomalous Hall effect in Mn Doped GeSnTe Semiconductors in the Bad Metal Hopping Regime | We present high field magnetotransport studies of Ge1-x-y(SnxMny)Te bulk
multiferroics with diamagnetic Sn and paramagnetic Mn concentration x = 0.38 to
0.79 and y = 0.02 to 0.086, respectively. The zero field resistivity, {\rho}(T)
takes significant contribution from defects below T = 20 K however, a mixed
scattering ... | 2307.06271v1 |
2012-10-07 | Tailoring Magnetism of Perpendicularly Magnetized MnxGa Epitaxial Films on GaAs for Practical Applications | MnxGa films with high perpendicular anisotropy, coercivity and energy product
have great application potential in ultrahigh-density perpendicular recording,
permanent magnets, spin-transfer-torque memory and oscillators,
magneto-resistance sensors and ferromagnetic metal/semiconductor
heterostructure devices. Here we p... | 1210.2062v3 |
2012-11-14 | The Critical Current Density of an SNS Josephson-Junction | The critical current density (Jc) through a superconductor in high magnetic
fields is controlled by the inclusions and microstructure of the material that
hold fluxons stationary to keep the resistance zero and is described using
Ginzburg-Landau (G-L) theory. Although the functional form of Jc for
superconducting-norma... | 1211.3255v2 |
2013-09-08 | Nanoscale resolution scanning thermal microscopy with thermally conductive nanowire probes | Scanning thermal microscopy (SThM) - a type of scanning probe microscopy that
allows mapping thermal transport and temperatures in nanoscale devices, is
becoming a key approach that may help to resolve heat dissipation problems in
modern processors and develop new thermoelectric materials. Unfortunately,
performance of... | 1309.2010v1 |
2019-09-13 | Electric field and current induced electroforming modes in NbOx | Electroforming is used to initiate the memristive response in
metal/oxide/metal devices by creating a filamentary conduction path in the
oxide film. Here we use a simple photoresist-based detection technique to map
the spatial distribution of conductive filaments formed in Nb/NbOx/Pt devices,
and correlate these with c... | 1909.06443v2 |
2000-05-25 | Critical Resistivity along the Quantum Hall Liquid--Insulator Transition Line | The critical resistivity measured along the quantum Hall liquid--insulator
transition line indicates a pronounced peak at a critical filling factor close
to 1, which marks the crossover from the high to low magnetic field regime in
the phase diagram. The origin of this behavior is explained in the framework of
classica... | 0005436v1 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.