publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
|---|---|---|---|
2003-10-23 | Correlation between the Extraordinary Hall Effect and Resistivity | We study the contribution of different types of scattering sources to the
extraordinary Hall effect. Scattering by magnetic nano-particles embedded in
normal-metal matrix, insulating impurities in magnetic matrix, surface
scattering and temperature dependent scattering are experimentally tested. Our
new data, as well a... | 0310551v1 |
2003-12-29 | La0.95Sr0.05CoO3: An efficient room-temperature thermoelectric oxide | We present measurements of electrical resistivity, thermal conductivity and
thermopower of polycrystalline Sr-doped LaCoO3 with composition
La0.95Sr0.05CoO3. Our data show that the investigated compound exhibits a very
respectable room temperature thermoelectric figure of merit value of 0.18. Our
results not only show ... | 0312670v1 |
2004-01-06 | Superstructure, sodium ordering and antiferromagnetism in NaxCoO2 (0.75<x<1.0) | Transmission-electron-microscopy investigation reveals the presence of a
superstructure with a doubled period of 2d110 in the NaxCoO2 materials for x
ranging from 0.75 to 1.0. Systematic analyses suggest that this superstructure
in general appears just below a phase transition which could yield an anomalous
kink in res... | 0401052v1 |
2004-09-15 | Drying model for porous material based on the dynamics of the evaporation front | A receding-front model for drying of porous material is proposed that
explains their drying-rate curves based on the dynamics of the evaporation
front. The falling-rate regime is attributed to the slowing down of the front's
propagation inside the medium due to the resistance offered by the disorder
generated by porosi... | 0409384v1 |
2004-10-20 | Spin-polarized transport through carbon nanotubes | Carbon nanotubes (CNT) belong to the most promising new materials which can
in the near future revolutionize the conventional electronics. When sandwiched
between ferromagnetic electrodes, the CNT behaves like a spacer in conventional
spin-valves, leading quite often to a considerable giant magneto-resistance
effect (G... | 0410507v1 |
2005-11-25 | Decoupled magnetic and electrical switching in manganite trilayer | We report magnetic and electrical transport studies of an epitaxially grown
trilayer thin film structure comprising La0.59Ca0.41MnO3 sandwiched between
La0.67Ca0.33MnO3 electrodes. Since La0.59Ca0.41MnO3 lies at the edge of the
thin film ferromagnetic metallic phase field, phase separation effects are
expected. These e... | 0511632v1 |
2005-12-08 | Charge order in photosensitive Bi0.4Ca0.6MnO3 films | We report structural and electronic characterization of the charge order
phase in Bi0.4Ca0.6MnO3 films, in which photoinduced resistivity changes have
been observed at temperatures approaching room temperature. In all films,
lattice distortions associated with the charge order are observed, and both the
wavevectors and... | 0512179v1 |
2006-03-21 | Effect of rolling on dissipation in fault gouge | Sliding and rolling are two outstanding deformation modes in granular media.
The first one induces frictional dissipation whereas the latter one involves
deformation with negligible resistance. Using numerical simulations on
two-dimensional shear cells, we investigate the effect of the grain rotation on
the energy diss... | 0603542v1 |
2006-06-20 | Resonant Tunneling Magneto Resistance in Coupled Quantum Wells | A three barrier resonant tunneling structure in which the two quantum wells
are formed by a dilute magnetic semiconductor material (ZnMnSe) with a giant
Zeeman splitting of the conduction band is theoretically investigated.
Self-consistent numerical simulations of the structure predict giant
magnetocurrent in the reson... | 0606531v2 |
2006-08-07 | Structure and Function of Window Glass and Pyrex | Window glass is a ternary mixture, while pyrex (after window glass, the most
common form of commercial glass) is a quaternary. Building on our previous
success in deriving the composition of window glass (sodium calcium silicate)
without adjustable parameters, and borrowing from known reconstructed
crystalline surfaces... | 0608157v2 |
2006-08-28 | A Novel Pyrochlore Ruthenate: Ca2Ru2O7 | Single crystals of a novel ruthenate, Ca2Ru2O7, were obtained. An X-ray
diffraction study on a single crystal revealed that this material crystallizes
in a pyrochlore structure with a lattice parameter, a = 10.197 Angstroms. The
magnetic susceptibility above 30 K is the summation of a Curie-Weiss
contribution and a con... | 0608593v1 |
2006-08-30 | Electromagnetic shielding with polypyrrole-coated fabrics | Several shielding applications, to protect human health and electronic
devices against dangerous effects of electromagnetic radiation, require
solutions that fabrics can suitably fulfill. Here, we will investigate the
electromagnetic interference shielding effectiveness of polypyrrole-coated
polyester textiles, in the ... | 0608664v1 |
2007-03-19 | Understanding the Branly effect | At the end of the nineteenth century \'{E}douard Branly discovered that the
electrical resistance of a granular metallic conductor could drop by several
orders of magnitude when excited by the electromagnetic field emitted by an
electrical spark. Despite the fact that this effect has been used to detect
radio waves in ... | 0703495v1 |
2007-04-09 | Electron Transport in Nanogranular Ferromagnets | We study electronic transport properties of ferromagnetic nanoparticle arrays
and nanodomain materials near the Curie temperature in the limit of weak
coupling between the grains. We calculate the conductivity in the Ohmic and
non-Ohmic regimes and estimate the magnetoresistance jump in the resistivity at
the transitio... | 0704.1167v2 |
2007-07-06 | Thermal rectification and negative differential thermal resistance in lattices with mass gradient | We study thermal properties of one dimensional(1D) harmonic and anharmonic
lattices with mass gradient. It is found that the temperature gradient can be
built up in the 1D harmonic lattice with mass gradient due to the existence of
gradons. The heat flow is asymmetric in the anharmonic lattices with mass
gradient. More... | 0707.0977v1 |
2008-03-28 | On the electronic structure of the charge-ordered phase in epitaxial and polycrystalline La1-xCaxMnO3 (x = 0.55, 0.67) perovskite manganites | In this work the charge transport properties of charge ordered (CO)
La1-xCaxMnO3 (LCMO) (x= 0.55, 0.67) epitaxial thin films and polycrystals are
discussed following the recent controversy of localised electron states vs.
weakly or de- localised charge density wave (CDW) states in CO manganites. The
transport propertie... | 0803.4157v1 |
2008-11-02 | Deposition of Diamond-like Carbon films using Dense Plasma Focus | Diamond Like Carbon (DLC) films were deposited on quartz substrates using
Dense Plasma Focus (DPF) method. The formation of ${\rm sp^3}$ bonds as is it's
content in the film strongly depends on the substrate and it seems quartz is
not a suitable substrate. However, we report here the formation of DLC films on
quartz su... | 0811.0162v1 |
2009-05-03 | Magnetic state electrical readout of Mn12 molecules | We demonstrate that the different magnetic states of a Mn12 molecule can be
distinguished in a two-probe transport experiment from a complete knowledge of
the current-voltage curve. Our results, obtained with state-of-the-art
non-equilibrium transport methods combined with density functional theory,
demonstrate that sp... | 0905.0281v1 |
2010-04-10 | Extremely Low Drift in Amorphous Phase Change Nanowire Materials | Time-dependent drift of resistance and threshold voltage in phase change
memory (PCM) devices is of concern as it leads to data loss. Electrical drift
in amorphous chalcogenides has been argued to be either due to electronic or
stress relaxation mechanisms. Here we show that drift in amorphized Ge2Sb2Te5
nanowires with... | 1004.1695v1 |
2010-06-30 | Control of the structural and magnetic properties of perovskite oxide ultrathin films through the substrate symmetry effect | Perovskite transition-metal oxides are networks of corner-sharing octahedra
whose tilts and distortions are known to affect their electronic and magnetic
properties. We report calculations on a model interfacial structure to avoid
chemical influences and show that the symmetry mismatch imposes an interfacial
layer with... | 1006.5758v1 |
2011-05-25 | Non-Gaussian resistance noise in the ferromagnetic insulating state of a hole doped manganite | We report the observation of a large 1/f noise in the ferromagnetic
insulating state (FMI) of a hole doped manganite single crystal of
La0.80Ca0.20MnO3 which manifests hopping conductivity in presence of a Coulomb
gap. The temperature dependent noise magnitude shows a deep within the FMI
state, there is a sharp freeze ... | 1105.5079v1 |
2013-12-03 | Doped Polyaniline: A Possible Anode for Organic Electronics | Polymer based printable organic thin film transistor (OTFT) is a viable low
cost alternative to amorphous silicon based thin film transistors and possesses
light-weight and flexibility advantage. In this paper, we report on the hole
injecting properties of doped PANI in OLED devices using it as an anode. From
these res... | 1312.0737v1 |
2013-12-28 | Understanding Branly's effect through Induced Tunnelling | At the end of the nineteenth century \'Edouard Branly discovered that the
electrical resistance of a granular metallic conductor could drop by several
orders of magnitude when excited by the electromagnetic field emitted by a
distant electrical spark [ ]. Despite the fact that this effect was used to
detect radio waves... | 1312.7464v2 |
2014-05-08 | Inverse spin Hall effect in a closed loop circuit | We present measurements of inverse spin Hall effects (ISHEs) in which the
conversion of a spin current into a charge current via the ISHE is detected not
as a voltage in a standard open circuit but directly as the charge current
generated in a closed loop. The method is applied to the ISHEs of Bi-doped Cu
and Pt. The d... | 1405.2100v2 |
2014-09-23 | Negative differential resistance: another banana? | Just like the artefact found in ferroelectric hysteresis loops, the nearly
identical NDR effect shown in Sr3Co2Fe24O41, TiO2, Al2O3, glass and even banana
skins is confirmed to be a kind of water behavior. The combination of water
induced tunneling effect, water decomposition and absorption plays a crucial
role in the ... | 1409.6438v1 |
2015-01-13 | The Electronic and Magnetic Properties of Magnetoresistant Nd1-xSrxMnAsO Oxyarsenides | The oxypnictides Nd1-xSrxMnAsO have been successfully synthesised with x up
to 0.1. A synchrotron X-ray diffraction study demonstrates that there is no
change in crystal symmetry upon doping with Sr. An expansion of the inter-layer
distance between Nd-O-Nd and As-Mn-As blocks is observed with increasing x.
Results from... | 1501.02996v1 |
2015-03-02 | Functional Materials for Information and Energy Technology: Insights by Photoelectron Spectroscopy | The evolution of both information and energy technology is intimately
connected to complex condensed matter systems, the properties of which are
determined by electronic and chemical interactions and processes on a broad
range of length and time scales. Dedicated photoelectron spectroscopy and
spectromicroscopy experim... | 1503.00464v2 |
2015-03-29 | Cooperative Multiscale Aging in a Ferromagnet/Antiferromagnet Bilayer | We utilize anisotropic magnetoresistance to study temporal evolution of the
magnetization state in epitaxial Ni$_{80}$Fe$_{20}$/Fe$_{50}$Mn$_{50}$
ferromagnet/antiferromagnet bilayers. The resistance exhibits power-law
evolution over a wide range of temperatures and magnetic fields, indicating
that aging is characteriz... | 1503.08380v1 |
2015-11-17 | On melting of boron phosphide under pressure | Melting of cubic boron phosphide, BP has been studied at pressures to 9 GPa
using synchrotron X-ray diffraction and electrical resistivity measurements. It
has been found that above 2.6 GPa BP melts congruently, and the melting curve
exhibits negative slope -60(7) K/GPa, which is indicative of a higher density
of the m... | 1511.05995v1 |
2015-11-30 | Electronic Origins of Large Thermoelectric Power Factor of LaOBiS2-xSex | We examined the electrical transport properties of densified LaOBiS2-xSex,
which constitutes a new family of thermoelectric materials. The power factor
increased with increasing concentration of Se, i.e., Se substitution led to an
enhanced electrical conductivity, without suppression of the Seebeck
coefficient. Hall me... | 1511.09133v1 |
2016-04-04 | Two-dimensional Dirac fermions in YbMnBi2 antiferromagnet | We report two-dimensional quantum transport and Dirac fermions in YbMnBi2
single crystals. YbMnBi2 is a layered material with anisotropic conductivity
and magnetic order below 290 K. Magnetotransport properties, nonzero Berry
phase and small cyclotron mass indicate the presence of quasi two dimensional
Dirac fermions. ... | 1604.01009v1 |
2016-08-17 | Field effect in stacked van der Waals heterostructures: Stacking sequence matters | Stacked van der Waals (vdW) heterostructures where semi-conducting
two-dimensional (2D) materials are contacted by overlayed graphene electrodes
enable atomically-thin, flexible electronics. We use first-principles quantum
transport simulations of graphene-contacted MoS2 devices to show how the
transistor effect critic... | 1608.05023v1 |
2017-06-30 | Structural and dielectric characterization of Sm2MgMnO6 | The polycrystalline Sm2MgMnO6 (SMMO) was synthesized at 1173K by means of
sol-gel technique. Rietveld refine-ment of X-ray diffraction (XRD) pattern
confirmed the formation of a single phase monoclinic structure with space group
P21/n. The band gap achieved from UV-vis spectra shows the semiconducting
nature of the mat... | 1706.10038v1 |
2017-10-08 | Hall effect spintronics for gas detection | We present the concept of magnetic gas detection by the Extraordinary Hall
effect (EHE). The technique is compatible with the existing conductometric gas
detection technologies and allows simultaneous measurement of two independent
parameters: resistivity and magnetization affected by the target gas.
Feasibility of the... | 1710.03700v1 |
2017-10-12 | Martensitic relief observation by atomic force microscopy in yttria stabilized zirconia | The tetragonal to monoclinic (t-m) phase transformation of zirconia has been
the object of extensive investigations of the last twenty years, and is now
recognised as being of martensitic nature. However, martensitic transformation
has only been observed by transmission electron microscopy or indirect methods.
Though t... | 1710.04442v1 |
2017-10-25 | Ordered C vacancies in titanium carbides: a correlation between crystal structure and the effects on oxidation behavior at elevated temperature | It has been widely accepted that the introduction of titanium carbides into
titanium-based alloys can significantly enhance the oxidation resistance due to
their superior physicochemical stability at elevated temperatures. The present
study reported for the first time that the ordered C vacancies within titanium
carbid... | 1710.09311v1 |
2017-12-28 | Theoretical calculation of transport properties of oxide material using narrow band model | We report about the results of theoretical calculations of temperature
dependence of resistivity ($\rho$) and Seebeck coefficient ($S$) for
thermoelectric (TE) and superconductivity (SC) phases by arithmetic equations
based on narrow band model with oxygen deficient structure, as the functions of
band-filling degree ($... | 1712.09840v1 |
2018-01-12 | Tunable elastic Parity-Time symmetric structure based on the shunted piezoelectric materials | We theoretically and numerically report on tunable elastic Parity-Time (PT)
symmetric structure based on shunted piezoelectric units. We show that the
elastic loss and gain can be archived in piezoelectric materials when they are
shunted by external circuits containing positive and negative resistances. We
present and ... | 1801.04114v1 |
2018-02-12 | Crack initiation in viscoelastic materials | In viscoelastic materials, individually short-lived bonds collectively result
in a mechanical resistance which is long-lived but finite, as ultimately cracks
appear. Here we provide a microscopic mechanism by which cracks emerge from the
nonlinear local bond dynamics. This mechanism is different from crack
initiation i... | 1802.04017v1 |
2017-01-27 | Delicate competing electronic states in ultrathin manganite films | The coupling between the electrical transport properties of La2/3Sr1/3MnO3
(LSMO) thin films and structural phase transitions of SrTiO3 (STO) substrates
at Ts = 105 K has been investigated. We found that the electrical resistivity
of LSMO films exhibit a cusp at Ts, which is greatly amplified by tuning films
to the ver... | 1701.07933v1 |
2019-07-03 | Precision measurements of the AC field dependence of the superconducting transition in strontium titanate | Strontium titanate has resurfaced as a material prompting vigorous debate
about the origin of its superconductivity in the extremely low carrier
concentration regime. Here, we used simultaneous AC susceptibility and
transport methods to explore the superconducting phase transition region in
this material. We determined... | 1907.01733v1 |
2020-04-14 | Compaction Self-Assembly of Ultralow-Binder-Content Thermoplastic Composites Based on Lunar Soil Simulant | In a recent study, we developed ultralow-binder-content (UBC) structural
materials based on lunar soil simulant and thermoset binders. In the current
research, we investigated thermoplastic binders. Compared to thermosets,
advanced thermoplastics could be more UV resistant, more durable, more robust,
and recyclable. Ou... | 2004.06273v1 |
2017-05-01 | On melting of boron subnitride B13N2 under pressure | Melting of rhombohedral boron subnitride B13N2 has been studied in situ at
pressures to 8 GPa using synchrotron X-ray diffraction and electrical
resistivity measurements. It has been found that above 2.6 GPa B13N2 melts
incongruently, and the melting curve exhibits positive slope of 31(3) K/GPa
that points to a lower d... | 1705.03753v1 |
2019-03-25 | Optical Hoovering on Plasmonic Rinks | Excitation of surface waves on conducting materials provides a near
resistance-free interface capable of a material glissade either by plasmon
forces or optical beam tractors. Analogous to an ice hockey rink, as proof of
principle plasmon assisted optical traction, or hoovering, of water drops on a
gold surface is demo... | 1903.10106v1 |
2021-04-23 | Microwave response in a topological superconducting quantum interference device | Photon detection at microwave frequency is of great interest due to its
application in quantum computation information science and technology. Herein
are results from studying microwave response in a topological superconducting
quantum interference device (SQUID) realized in Dirac semimetal Cd3As2. The
temperature depe... | 2104.11841v1 |
2021-04-29 | Thickness Dependence of Magneto-transport Properties in Tungsten Ditelluride | We investigate the electronic structure of tungsten ditelluride (WTe$_2$)
flakes with different thicknesses in magneto-transport studies. The
temperature-dependent resistance and magnetoresistance (MR) measurements both
confirm the breaking of carrier balance induced by thickness reduction, which
suppresses the `turn-o... | 2104.14464v1 |
2022-03-04 | Impedance spectroscopy: Impedance spectroscopy of nanomaterials | Solid state impedance spectroscopy enables the various contributions to the
resistive and capacitive properties of electronically inhomogeneous condensed
matter to be deconvoluted and characterized separately. The different
contributions arise from electronically distinct areas in the sample, which can
in an ideal case... | 2203.02387v1 |
1998-12-08 | Anomalous Low Temperature States in CeNi2Ge2 | Ambient pressure studies on high purity single crystals of the stoichiometric
4f-electron metal CeNi2Ge2 reveal anomalous low temperature forms of the
resistivity which challenge our understanding of the metallic state.
Comparisons are made with the isostructural and isoelectronic compound CePd2Si2
near the border of m... | 9812133v1 |
2003-03-20 | Electrical resistivity and magnetization measurements on the heavy fermion superconductor PrOs4Sb12 | The filled skutterudite compound PrOs4Sb12, the first example of a Pr-based
heavy fermion superconductor, displays superconductivity with $T_c\sim 1.85$ K
and has an effective mass $m^* \sim$ {50 $m_e$}, where $m_e$ is the free
electron mass. For magnetic fields above 4.5 T, sharp features in the normal
state electrica... | 0303405v1 |
2004-04-12 | Universality of the Mott-Ioffe-Regel limit in metals | The absence of resistivity saturation in many strongly correlated metals,
including the high-temperature superconductors, is critically examined from the
viewpoint of optical conductivity measurements. Coherent quasiparticle
conductivity, in the form of a Drude peak centred at zero frequency, is found
to disappear as t... | 0404263v1 |
2005-02-21 | High pressure effects on the superconductivity of beta-pyrochlore oxides AOs2O6 | High pressure effects on the superconducting transitions of beta-pyrochlore
superconductors AOs2O6 (A = Cs, Rb, K) are studied by measuring resistivity
under high pressures up to 10 GPa. The superconducting transition temperature
Tc first increases with increasing pressure in all the compounds and then
exhibits a broad... | 0502490v1 |
2003-07-30 | Position Sensing from Charge Dispersion in Micro-Pattern Gas Detectors with a Resistive Anode | Micro-pattern gas detectors, such as the Gas Electron Multiplier (GEM) and
the Micromegas need narrow high density anode readout elements to achieve good
spatial resolution. A high-density anode readout would require an unmanageable
number of electronics channels for certain potential micro-detector
applications such a... | 0307152v2 |
2008-09-30 | High Pressure studies of the magnetic phase transition in MnSi: revisited | New measurements of AC magnetic susceptibility and DC resistivity of a high
quality single crystal MnSi were carried out at high pressure making use of
helium as a pressure medium. The form of the AC magnetic susceptibility curves
at the magnetic phase transition suddenly changes upon helium solidification.
This implie... | 0809.5117v1 |
2014-05-21 | Waveguide-mode interference lithography technique for high contrast subwavelength structures in the visible region | We explore possibilities of waveguide-mode interference lithography (WMIL)
technique for high contrast subwavelength structures in the visible region.
Selecting an appropriate waveguide-mode, we demonstrate high contrast resist
mask patterns for the first time. TM1 mode in the waveguide is shown to be
useful for provid... | 1405.5395v1 |
2015-10-28 | Effect of ambient on the resistance fluctuations of graphene | In this letter we present the results of systematic experimental
investigations of the effect of different chemical environments on the low
frequency resistance fluctuations of single layer graphene field effect
transistors (SLG-FET). The shape of the power spectral density of noise was
found to be determined by the en... | 1510.08198v1 |
2016-07-09 | In-beam evaluation of a medium-size Resistive-Plate WELL gaseous particle detector | In-beam evaluation of a fully-equipped medium-size 30$\times$30 cm$^2$
Resistive Plate WELL (RPWELL) detector is presented. It consists here of a
single element gas-avalanche multiplier with Semitron ESD225 resistive plate, 1
cm$^2$ readout pads and APV25/SRS electronics. Similarly to previous results
with small detect... | 1607.02587v2 |
2017-12-26 | Microwave-induced zero-resistance states in a high-mobility two-subband electron system | In this study we used selectively-doped GaAs/AlAs heterostructure to
fabricate a high-mobility two-subband electronic system with substantially
different concentration of electrons in subbands. We observe microwave
photoresistance at high numbers of magneto-intersubband oscillations (MISO).
The system under study demon... | 1712.09244v1 |
2020-04-11 | Characterisation of an RPC prototype with moderate resistivity plates using tetrafluoroethane ($C_2H_2F_4$) | Keeping in mind the requirements of high rate capable, cost effective, large
area detectors to be used in future high energy physics experiments,
commercially available bakelite plates having moderate bulk resistivity are
used to build an RPC module. The chamber is tested with cosmic rays in the
avalanche mode using 10... | 2004.05469v2 |
2019-08-29 | Onset of phase diffusion in high kinetic inductance granular aluminum micro-SQUIDs | Superconducting granular aluminum is attracting increasing interest due to
its high kinetic inductance and low dissipation, favoring its use in kinetic
inductance particle detectors, superconducting resonators or quantum bits. We
perform switching current measurements on DC-SQUIDs, obtained by introducing
two identical... | 1908.11067v1 |
2019-12-18 | Multiplex stimulated Raman scattering imaging cytometry reveals cancer metabolic signatures in a spatially, temporally, and spectrally resolved manner | In situ measurement of cellular metabolites is still a challenge in biology.
Conventional methods, such as mass spectrometry or fluorescence microscopy,
would either destruct the sample or introduce strong perturbations to the
functions of target molecules. Here, we present multiplex stimulated Raman
scattering (SRS) i... | 1912.08340v1 |
2020-05-31 | Towards a two-dimensional readout of the improved CMS Resistive Plate Chamber with a new front-end electronics | As part of the Compact Muon Solenoid experiment Phase-II upgrade program, new
Resistive Plate Chambers will be installed in the forward region. High
background conditions are expected in this region during the high-luminosity
phase of the Large Hadron Collider, therefore an improved RPC design has been
proposed with a ... | 2006.00576v1 |
2020-06-24 | Microwave response of interacting oxide two-dimensional electron systems | We present an experimental study on microwave illuminated high mobility
MgZnO/ZnO based two-dimensional electron systems with different electron
densities and, hence, varying Coulomb interaction strength. The photoresponse
of the low-temperature dc resistance in perpendicular magnetic field is
examined in low and high ... | 2006.13627v1 |
2020-10-15 | Extreme High-Field Superconductivity in Thin Re Films | We report the high-field superconducting properties of thin, disordered Re
films via magneto-transport and tunneling density of states measurements. Films
with thicknesses in the range of 9 nm to 3 nm had normal state sheet
resistances of $\sim$0.2 k$\Omega$ to $\sim$1 k$\Omega$ and corresponding
transition temperature... | 2010.07674v2 |
2021-09-29 | High-performance Ba1-xKxFe2As2 superconducting joints for persistent current operation | Superconducting joints are one of the key technologies to make Ba1-xKxFe2As2
(Ba-122) superconducting wires or tapes for high-field applications. Herein,
superconducting joints were fabricated by a simple cold-pressing method, and
the joint resistance of the iron-based superconducting joint was estimated for
the first ... | 2109.14300v1 |
2022-09-01 | Directed flow in relativistic resistive magneto-hydrodynamic expansion for symmetric and asymmetric collision systems | We construct a dynamical model for high-energy heavy-ion collision based on
the relativistic resistive magneto-hydrodynamic framework. Using our newly
developed (3+1)-dimensional relativistic resistive magneto-hydrodynamics code,
we investigate magneto-hydrodynamic expansion in symmetric and asymmetric
collision system... | 2209.00323v1 |
2023-02-21 | A novel fast response and radiation-resistant scintillator detector for beam loss monitor | At high luminosity areas, beam loss monitor with fast response and high
radiation resistance is crucial for accelerator operation. In this article, we
report the design and test results of a fast response and radiation-resistant
scintillator detector as the beam loss monitor for high luminosity colliders,
especially at... | 2302.14662v1 |
2023-11-28 | Transport properties of a half-filled Chern band at the electron and composite fermion phases | We consider a half-filled Chern band and its transport properties in two
phases that it may form, the electronic Fermi liquid and the composite-fermion
Fermi liquid. For weak disorder, we show that the Hall resistivity for the
former phase is very small, while for the latter it is close to $2h/e^2$,
independent of the ... | 2311.16761v1 |
2024-05-17 | Possible spin-polarized Cooper pairing in high temperature FeSe superconductor | Superconductivity and long-range ferromagnetism hardly coexist in a uniform
manner. The counter-example has been observed, in uranium-based superconductors
for instance, with a coexisting temperature limited to about 1 K. Here, we
report the coexistence of high temperature superconductivity and itinerant
ferromagnetism... | 2405.10482v1 |
2006-05-24 | Tuning of magnetic and electronic states by control of oxygen content in lanthanum strontium cobaltites | We report on the magnetic, resistive, and structural studies of perovskite
La$_{1/3}$Sr$_{2/3}$CoO$_{3-\delta}$. By using the relation of synthesis
temperature and oxygen partial pressure to oxygen stoichiometry obtained from
thermogravimetric analysis, we have synthesized a series of samples with
precisely controlled ... | 0605611v1 |
2008-06-23 | Phase transitions in LaFeAsO: structural, magnetic, elastic, and transport properties, heat capacity and Mossbauer spectra | We present results from a detailed experimental investigation of LaFeAsO, the
parent material in the series of "FeAs" based oxypnictide superconductors. Upon
cooling this material undergoes a tetragonal-orthorhombic crystallographic
phase transition at ~160 K followed closely by an antiferromagnetic ordering
near 145 K... | 0806.3878v2 |
2011-03-07 | Reversibly tuning the insulating and superconducting state in KxFe2-ySe2 crystals by post-annealing | Since the discovery of superconductivity at 26 K in oxy-pnictide
LaFeAsO1-xFx, enormous interests have been stimulated in the field of condensed
matter physics and material sciences. Among the many kind of structures in the
iron pnictide superconductors, FeSe with the PbO structure has received special
attention since ... | 1103.1347v1 |
2014-09-16 | Hydrogen Diffusion and Stabilization in Single-crystal VO2 Micro/nanobeams by Direct Atomic Hydrogenation | We report measurements of the diffusion of atomic hydrogen in single
crystalline VO2 micro/nanobeams by direct exposure to atomic hydrogen, without
catalyst. The atomic hydrogen is generated by a hot filament, and the doping
process takes place at moderate temperature (373 K). Undoped VO2 has a
metal-to-insulator phase... | 1409.4661v1 |
2012-01-04 | Synthesis and physical properties of the new potassium iron selenide superconductor K0.80Fe1.76Se2 | In this article we review our studies of the K0.80Fe1.76Se2 superconductor,
with an attempt to elucidate the crystal growth details and basic physical
properties over a wide range of temperatures and applied magnetic field,
including anisotropic magnetic and electrical transport properties,
thermodynamic, London penetr... | 1201.0953v2 |
2019-04-24 | Role of Oxygen Adsorption in Nanocrystalline ZnO Interfacial Layers for Polymer-Fullerene Bulk Heterojunction Solar Cells | Colloidal zinc oxide (ZnO) nanoparticles are frequently used in the field of
organic photovoltaics for the realization of solution-producible,
electron-selective interfacial layers. Despite of the widespread use, there is
a lack of detailed investigations regarding the impact of structural properties
of the particles o... | 1904.10916v1 |
2020-10-12 | Landau Quantization and Highly Mobile Fermions in an Insulator | In strongly correlated materials, quasiparticle excitations can carry
fractional quantum numbers. An intriguing possibility is the formation of
fractionalized, charge-neutral fermions, e.g., spinons and fermionic excitons,
that result in neutral Fermi surfaces and Landau quantization in an insulator.
While previous exp... | 2010.05383v2 |
2021-07-29 | Shearing Mechanisms of Co-Precipitates in IN718 | The Ni-base superalloy 718 is the most widely used material for
turbomachinery in the aerospace industry and land-based turbines. Although the
relationship between processing and the resulting properties is well known, an
understanding of the specific deformation mechanisms activated across its
application temperature ... | 2107.13840v1 |
2021-08-24 | In Situ Photothermal Response of Single Gold Nanoparticles Through Hyperspectral Imaging AntiStokes Thermometry | Several fields of applications require a reliable characterization of the
photothermal response and heat dissipation of nanoscopic systems, which remains
a challenging task both for modeling and experimental measurements. Here, we
present a new implementation of anti-Stokes thermometry that enables the in
situ photothe... | 2108.10954v1 |
2022-01-10 | Superior enhancement in thermal conductivity of epoxy/graphene nanocomposites through use of dimethylformamide (DMF) relative to acetone as solvent | In this work, we demonstrate that use of dimethylformamide (DMF) as a solvent
leads to better dispersion of graphene nanoplatelets in epoxy matrix compared
to acetone solvent, in turn leading to higher thermal conductivity
epoxy-graphene nanocomposites. While role of solvents in enabling superior
mechanical properties ... | 2201.03527v2 |
2022-04-15 | Universal Non-Polar Switching in Carbon-doped Transition Metal Oxides (TMOs) and Post TMOs | Transition metal oxides (TMOs) and post-TMOs (PTMOs), when doped with Carbon,
show non-volatile current-voltage (I-V) characteristics, which are both
universal and repeatable. We have shown spectroscopic evidence of the
introduction of carbon-based impurity states inside the existing larger bandgap
effectively creating... | 2204.07656v1 |
2022-07-18 | Room temperature spin-orbit torque efficiency in sputtered low-temperature superconductor delta-TaN | In the course of searching for promising topological materials for
applications in future topological electronics, we evaluated spin-orbit torques
(SOTs) in high-quality sputtered ${\delta}-$TaN/Co20Fe60B20 devices through
spin-torque ferromagnetic resonance ST-FMR and spin pumping measurements. From
the ST-FMR charact... | 2207.08872v2 |
2023-03-30 | Observation of non-superconducting phase changes in LuH$_{2\pm\text{x}}$N$_y$ | The recent report of near-ambient superconductivity in nitrogen doped
lutetium hydride has triggered a worldwide fanaticism and raised major
questions about the latest claims. An intriguing phenomenon of color changes in
pressurized samples from blue to pink to red was observed and correlated with
the claimed supercond... | 2303.17587v2 |
2023-10-02 | Resistless EUV lithography: photon-induced oxide patterning on silicon | In this work, we show the feasibility of extreme ultraviolet (EUV) patterning
on an HF-treated Si(100) surface in the absence of a photoresist. EUV
lithography is the leading lithography technique in semiconductor manufacturing
due to its high resolution and throughput, but future progress in resolution
can be hampered... | 2310.01268v1 |
2023-10-31 | Signature of Topological Semimetal in Harmonic-honeycomb ReO3 | Transition-metal honeycomb compounds are capturing scientific attention due
to their distinctive electronic configurations, underscored by the
triangular-lattice spin-orbit coupling and competition between multiple
interactions, paving the way for potential manifestations of phenomena such as
Dirac semimetal, supercond... | 2310.20341v2 |
2024-01-13 | Reliable operation of Cr$_2$O$_3$:Mg/ $β$-Ga$_2$O$_3$ p-n heterojunction diodes at 600$^\circ$C | $\beta$-Ga$_2$O$_3$-based semiconductor heterojunctions have recently
demonstrated improved performance at high voltages and elevated temperatures
and are thus promising for applications in power electronic devices and
harsh-environment sensors. However, the long-term reliability of these
ultra-wide band gap (UWBG) sem... | 2401.07166v1 |
2024-02-09 | BaMn$_2$P$_2$: Highest magnetic ordering temperature 122-pnictide compound | We report the growth of high-quality single crystals of ThCr$_2$Si$_2$-type
tetragonal BaMn$_2$P$_2$ and investigation of its structural, electrical
transport, thermal and magnetic properties. Our results of basal plane
electrical resistivity and heat capacity measurements show that the compound
has an insulating groun... | 2402.06432v1 |
2016-07-07 | Temperature dependence of the electrical resistivity and the anisotropic magnetoresistance (AMR) of electrodeposited Ni Co alloys | The electrical resistivity and the anisotropic magnetoresistance (AMR) was
investigated for Ni Co alloys at and below room temperature. The Ni Co alloy
layers having a thickness of about 2 um were prepared by electrodeposition on
Si wafers with evaporated Cr and Cu underlayers. The alloy composition was
varied in the w... | 1607.01960v1 |
2012-06-07 | Resistive and magnetoresistive properties of CrO2 pressed powders with different types of inter-granular dielectric layers | Resistive, magnetoresistive and magnetic properties of four kinds of pressed
CrO2 powders, synthesized by hydrothermal method of chromic anhydride have been
investigated. The particles in powders constituted of rounded particles
(diameter 120 nm) or needle-shaped crystals with an average diameter of 22.9 nm
and average... | 1206.1533v1 |
2021-07-23 | Modeling the dynamical behavior of memristive {NiTi} alloy at constant stress for time-varying electric current input signals | The dynamical electric behavior of a NiTi smart alloy thin filament when
driven by time varying current pulses is studied by a structure-based
phenomenological model that includes rate-based effects. The simulation model
relates the alloy's electrical resistivity to the relative proportions of the
three main structural... | 2107.11060v1 |
2024-05-06 | Speckle pattern analysis of PVK:rGO composite based memristor device | The memristors are expected to be fundamental devices for neuromorphic
systems and switching applications. For example, the device made of a
sandwiched layer of poly(N-vinylcarbazole) and reduced graphene composite
between asymmetric electrodes (ITO/PVK:rGO/Al) exhibits bistable resistive
switching behavior. Depending ... | 2405.03369v1 |
2017-10-09 | Superconductivity in the Nb-Ru-Ge $σ$-Phase | We show that the previously unreported ternary $\sigma$-phase material
Nb$_{20.4}$Ru$_{5.7}$Ge$_{3.9}$ is a superconductor with a critical temperature
of 2.2 K. Temperature-dependent magnetic susceptibility, resistance, and
specific heat measurements were used to characterize the superconducting
transition. The Sommerf... | 1710.03347v1 |
2022-02-28 | Colloquium: Quantum anomalous Hall effect | The quantum Hall (QH) effect, quantized Hall resistance combined with zero
longitudinal resistance, is the characteristic experimental fingerprint of
Chern insulators - topologically non-trivial states of two-dimensional matter
with broken time-reversal symmetry. In Chern insulators, non-trivial bulk band
topology is e... | 2202.13902v4 |
2018-08-12 | Low Temperature Specific Heat of Doped SrTiO$_3$: Doping Dependence of the Effective Mass and Kadowaki-Woods Scaling Violation | We report wide-doping-range ($8 \times 10^{17}$ to $4 \times 10^{20}$
cm$^{-3}$ Hall electron density) low temperature specific heat measurements on
single crystal SrTiO$_3$:Nb, correlated with electronic transport data and
tight-binding modeling. Lattice dynamic contributions to specific heat are
shown to be well unde... | 1808.03909v2 |
2015-06-07 | Temperature dependent three-dimensional anisotropy of the magnetoresistance in WTe$_2$ | Extremely large magnetoresistance (XMR) was recently discovered in WTe$_2$,
triggering extensive research on this material regarding the XMR origin. Since
WTe$_2$ is a layered compound with metal layers sandwiched between adjacent
insulating chalcogenide layers, this material has been considered to be
electronically tw... | 1506.02214v2 |
2019-10-09 | Preferential out-of-plane conduction and quasi-one-dimensional electronic states in layered 1T-TaS2 | Layered transition metal dichalcogenides (TMDs) are commonly classified as
quasi-two-dimensional materials, meaning that their electronic structure
closely resembles that of an individual layer, which results in resistivity
anisotropies reaching thousands. Here, we show that this rule does not hold for
1T-TaS2 - a comp... | 1910.03817v2 |
2019-10-23 | Complex Transport and Magnetism in Inhomogeneous Mixed Valence Ce$_3$Ir$_4$Ge$_{13}$ | We report the discovery of Ce$_3$Ir$_4$Ge$_{13}$, a new Remeika phase
compound with a complex array of structural, electronic, and magnetic
properties. Our single crystal x-ray diffraction measurements show that
Ce$_3$Ir$_4$Ge$_{13}$ forms in the tetragonally distorted $I4_1/amd$ space
group. The electrical resistivity... | 1910.10764v1 |
2020-05-01 | Characterisation of Cryogenic Material Properties of 3D-Printed Superconducting Niobium using a 3D Lumped Element Microwave Cavity | We present an experimental characterisation of the electrical properties of
3D-printed Niobium. The study was performed by inserting a 3D-printed Nb post
inside an Aluminium cylindrical cavity, forming a 3D lumped element re-entrant
microwave cavity resonator. The resonator was cooled to temperatures below the
critical... | 2005.00271v1 |
2021-09-30 | Spin-flip-driven giant magneto-transport in A-type antiferromagnet NaCrTe2 | For anisotropic magneto-resistance (AMR) effect, its value synergistically
depends on the magnitudes of magneto-resistance (MR) and magneto-crystalline
anisotropy energy (MAE) simultaneously. In a magnetic material, the concurrence
of gigantic AMR and MR signals is rather difficult due to weak spin-lattice
coupling and... | 2109.14923v1 |
2021-11-12 | Recrystallization and Interdiffusion Processes in Laser-Annealed Strain-Relaxed Metastable Ge$_{0.89}$Sn0$_{.11}$ | The prospect of GeSn semiconductors for silicon-integrated infrared
optoelectronics brings new challenges related to the metastability of this
class of materials. As a matter of fact, maintaining a reduced thermal budget
throughout all processing steps of GeSn devices is essential to avoid possible
material degradation... | 2111.06788v1 |
2022-04-18 | Material properties of a low contraction and resistivity silicon-aluminum composite for cryogenic detectors | We report on the cryogenic properties of a low-contraction silicon-aluminum
composite, namely Japan Fine Ceramics SA001, to use as a packaging structure
for cryogenic silicon devices. SA001 is a silicon--aluminum composite material
(75% silicon by volume) and has a low thermal expansion coefficient ($\sim$1/3
that of a... | 2204.08111v2 |
2022-06-07 | Phase-field modelling and analysis of rate-dependent fracture phenomena at finite deformation | Fracture of materials with rate-dependent mechanical behaviour, e.g.
polymers, is a highly complex process. For an adequate modelling, the coupling
between rate-dependent stiffness, dissipative mechanisms present in the bulk
material and crack driving force has to be accounted for in an appropriate
manner. In addition,... | 2206.03460v1 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.