publicationDate stringlengths 10 10 | title stringlengths 17 233 | abstract stringlengths 20 3.22k | id stringlengths 9 12 |
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2024-02-11 | Reducing the metal-graphene contact resistance through laser-induced defects | Graphene has been extensively studied for a variety of electronic and
optoelectronic applications. The reported contact resistance between metal and
graphene, or rather its specific contact resistance (R{_C}), ranges from a few
tens of {\Omega} {\mu}m up to a few k{\Omega} {\mu}m. Manufacturable solutions
for defining ... | 2402.07151v1 |
2024-04-19 | A Soft e-Textile Sensor for Enhanced Deep Learning-based Shape Sensing of Soft Continuum Robots | The safety and accuracy of robotic navigation hold paramount importance,
especially in the realm of soft continuum robotics, where the limitations of
traditional rigid sensors become evident. Encoders, piezoresistive, and
potentiometer sensors often fail to integrate well with the flexible nature of
these robots, addin... | 2404.12627v1 |
1996-01-23 | Transport Properties, Thermodynamic Properties, and Electronic Structure of SrRuO3 | SrRuO$_3$ is a metallic ferromagnet. Its electrical resistivity is reported
for temperatures up to 1000K; its Hall coefficient for temperatures up to 300K;
its specific heat for temperatures up to 230K. The energy bands have been
calculated by self-consistent spin-density functional theory, which finds a
ferromagnetic ... | 9601106v1 |
1997-08-26 | Scaling and the Metal-Insulator Transition in Si/SiGe Quantum Wells | The existence of a metal-insulator transition at zero magnetic field in two-
dimensional electron systems has recently been confirmed in high mobility
Si-MOSFETs. In this work, the temperature dependence of the resistivity of
gated Si/SiGe/Si quantum well structures has revealed a similar metal-
insulator transition as... | 9708201v1 |
1999-10-29 | Neighbor-junction state effect on the fluxon motion in a Josephson stack | We study experimentally and theoretically the influence of phase-whirling
(resistive) state in one junction of a two-fold Josephson stack on the fluxon
motion in the other junction. In experiment, we measure the fluxon velocity
versus current in one junction as a function of the state (Meissner or
resistive) of the nei... | 9910489v1 |
2000-03-02 | Probing spin-charge separation using spin transport | Pedagogical discussions are given on what constitutes a signature of
spin-charge separation. A proposal is outlined to probe spin-charge separation
in the normal state of the high $T_c$ cuprates using spin transport.
Specifically, the proposal is to compare the temperature dependences of the
spin resistivity and electr... | 0003033v2 |
2000-06-01 | Superconducting properties of [BaCuO_x]_2/[CaCuO_2]_n artificial structures with ultrathick CaCuO_2 blocks | The electrical transport properties of [BaCuO_x]_2/[CaCuO_2]_n
(CBCCO-2xn)underdoped high temperature superconducting superlattices grown by
Pulsed Laser Deposition have been investigated. Starting from the optimally
doped CBCCO-2x2 superlattice, having three CuO_2 planes and T_c around 80 K, we
have systematically inc... | 0006023v2 |
2000-08-02 | Evidence for small or intermediate-size polarons in the ferromagnetic state of manganites | Oxygen-isotope effects on the intrinsic resistivity have been studied in
high-quality epitaxial thin films of La_{0.75}Ca_{0.25}MnO_{3} and
Nd_{0.7}Sr_{0.3}MnO_{3}. We found that the residual resistivity \rho_{o}
increases by about 15(3)% upon replacing ^{16}O by ^{18}O. This provides strong
evidence for the presence o... | 0008029v1 |
2000-10-06 | Fluctuation Effects in High Sheet Resistance Superconducting Films | As the normal state sheet resistance, $R_n$, of a thin film superconductor
increases, its superconducting properties degrade. For $R_n\simeq h/4e^2$
superconductivity disappears and a transition to a nonsuperconducting state
occurs. We present electron tunneling and transport measurements on ultrathin,
homogeneously di... | 0010114v1 |
2001-07-29 | Pressure-induced Superconductivity in a Ferromagnet UGe$_2$ -- Resistivity Measurements in Magnetic Field -- | The electrical resistivity measurements in the magnetic field are carried out
on the pressure-induced superconductor UGe$_2$. The superconductivity is
observed from 1.06 to 1.44 GPa. The upper critical field of $H_{C2}$ is
anisotropic where $H_{C2}(T)$ exhibits positive curvature for $H//b$ and
$c$-axis. The characteri... | 0107584v1 |
2001-10-26 | Two-dimensional metal in a parallel magnetic field | We have investigated the effect of an in plane parallel magnetic field (B_||)
on two high mobility metallic-like dilute two-dimensional hole gas (2DHG)
systems in GaAs quantum wells. The experiments reveal that, while suppressing
the magnitude of the low temperature resistance drop, B_|| does not affect E_a,
the charac... | 0110571v1 |
2002-05-07 | Doping Dependence of Anisotropic Resistivities in Trilayered Superconductor Bi2Sr2Ca2Cu3O10+delta (Bi-2223) | The doping dependence of the themopower, in-plane resistivity rho_ab(T),
out-of-plane resistivity rho_c(T), and susceptibility has been systematically
measured for high-quality single crystal Bi2Sr2Ca2Cu3O10+delta. We found that
the transition temperature Tc and pseudogap formation temperature T_rho_c*,
below which rho... | 0205121v1 |
2002-09-19 | Temperature dependence of electrical resistivity of high-Tc cuprates - from pseudogap to overdoped regions | The effects of planar hole concentration, p, and in-plane disorder, Zn (y),
on the DC resistivity, r(T), of sintered samples of
Y_{1-x}Ca_xBa_2(Cu_{1-y}Zn_y)_3O_{7-d} were investigated over a wide doping
range by changing both the oxygen deficiency (d) and Ca content (x). From the
r(T,p) data we extracted characteristi... | 0209457v1 |
2002-10-23 | Crossover from coherent to incoherent electronic excitations in the normal state of Bi2Sr2CaCu2O8 | Angle resolved photoemission spectroscopy (ARPES) and resistivity
measurements are used to explore the overdoped region of the high temperature
superconductor Bi2Sr2CaCu2O8+delta. We find evidence for a new crossover line
in the phase diagram between a coherent metal phase for lower temperatures and
higher doping, and ... | 0210531v1 |
2003-01-14 | Resistance Noise Scaling in a Dilute Two-Dimensional Hole System in GaAs | We have measured the resistance noise of a two-dimensional (2D)hole system in
a high mobility GaAs quantum well, around the 2D metal-insulator transition
(MIT) at zero magnetic field. The normalized noise power $S_R/R^2$ increases
strongly when the hole density p_s is decreased, increases slightly with
temperature (T) ... | 0301222v2 |
2003-01-29 | Radiation-Induced Magnetoresistance Oscillations in a 2D Electron Gas | Recent measurements of a 2D electron gas subjected to microwave radiation
reveal a magnetoresistance with an oscillatory dependence on the ratio of
radiation frequency to cyclotron frequency. We perform a diagrammatic
calculation and find radiation-induced resistivity oscillations with the
correct period and phase. Res... | 0301569v3 |
2003-02-05 | A low density finite temperature apparent "insulating" phase in 2D systems | We propose that the observed low density ``insulating'' phase of a 2D
semiconductor system, with the carrier density being just below ($n < n_c$) the
so-called critical density where the derivative of resistivity changes sign at
low temperatures (i.e. resistivity $\rho(T)$ increases with increasing $T$ for
$n > n_c$ wh... | 0302112v1 |
2003-05-02 | Quantum Gunn effect: Zero-resistance state in 2D electron gas | Usually the conductivity is quantized as the inverse of the resistivity,
\rho=hc/ie^2, \sigma=ie^2/hc and the velocity versus the electric field is
linear, v=\mu E where \mu is the mobility of the electrons.However,when the
applied electric field exceeds a certain value, microwaves are emitted and the
relation v=\mu E ... | 0305032v1 |
2004-02-06 | Counterflow measurements in strongly correlated GaAs hole bilayers: evidence for electron-hole pairing | We study interacting GaAs bilayer hole systems, with very small interlayer
tunneling, in a counterflow geometry where equal currents are passed in
opposite directions in the two, independently contacted layers. At low
temperatures, both the longitudinal and Hall counterflow resistances tend to
vanish in the quantum Hal... | 0402186v2 |
2004-02-20 | Chemical Control of Spin Chirality in $(Nd_{1-x} Dy_x)_2 Mo_2 O_7$ | Magnetization and Hall resistivity have been investigated for single crystals
of Dy-doped Nd$_{2}$Mo$_{2}$O$_{7}$. A sharp decrease of the Hall resistivity
upon a metamagnetic transition, perhaps associated with magnetic-field ($H$)
induced flop of Dy$^{3+}$ moments, has been observed in the Dy-doped crystals
only for ... | 0402510v1 |
2004-05-11 | Probing Spin-Polarized Currents in the Quantum Hall Regime | An experiment to probe spin-polarized currents in the quantum Hall regime is
suggested that takes advantage of the large Zeeman-splitting in the
paramagnetic diluted magnetic semiconductor zinc manganese selenide
(Zn$_{1-x}$Mn$_x$Se). In the proposed experiment spin-polarized electrons are
injected by ZnMnSe-contacts i... | 0405231v1 |
2004-08-27 | Hall resistance and Lorenz ratio models in YBa2Cu3O7 | The 2D models of heat capacity, its conductivity ($\kappa$), Hall resistance
($R_H$) and the Lorenz ratio ($\mathcal{L}$) have been derived using the
ionization energy ($E_I$) based Fermi-Dirac statistics (iFDS). These models
reproduce the experimentally measured $\rho(T)$ and $R_H(T)$. The variation of
$\mathcal{L}$ i... | 0408613v6 |
2004-09-08 | Non-linear Temperature Dependence of Resistivity in Single Crystalline Ag$_5$Pb$_2$O$_6$ | We measured electrical resistivity, specific heat and magnetic susceptibility
of single crystals of highly conductive oxide Ag_5Pb_2O_6, which has a layered
structure containing a Kagome lattice. Both the out-of-plane and in-plane
resistivity show T^2 dependence in an unusually wide range of temperatures up
to room tem... | 0409184v2 |
2004-09-08 | High pressure investigation of the heavy-fermion antiferromagnet U_3Ni_5Al_19 | Measurements of magnetic susceptibility, specific heat, and electrical
resistivity at applied pressures up to 55 kbar have been carried out on single
crystals of the heavy-fermion antiferromagnet U_3Ni_5Al_19, which crystallizes
in the Gd_3Ni_5Al_19 orthorhombic structure with two inequivalent U sites. At
ambient press... | 0409202v1 |
2005-04-19 | Nonmonotonic Temperature Dependence of the Hall Resistance for 2D Electron System in Si | Weak field Hall resistance Rxy(T) of the 2D electron system in Si was
measured over the range of temperatures 1-35 K and densities, where the
diagonal resistivity exhibits a ``metallic'' behavior. The Rxy(T) dependence
was found to be non-monotonic with a maximum at temperatures Tm~0.16Tf. The
Rxy(T) variations in the ... | 0504475v1 |
2005-06-12 | Classical Hall transition and magnetoresistance in strongly inhomogeneous planar systems | The magneto-transport properties of planar and layered strongly inhomogeneous
two-phase systems are investigated, using the explicit expressions for the
effective conductivities and resistivities obtained by the exact dual
transformation, connecting effective conductivities of in-plane isotropic
two-phase systems with ... | 0506267v1 |
2005-07-08 | Field-induced non-Fermi-liquid resistivity of stoichiometric YbAgGe single crystals | We have investigated hexagonal YbAgGe down to 70 mK by measuring the
magnetic-field and temperature dependence of the resistivity rho of single
crystals in fields up to 14 T. Our results extend the H-T phase diagram to the
lowest temperatures for H applied in the basal plane and along the c-axis. In
particular, critica... | 0507211v2 |
2005-08-12 | The microwave induced resistance response of a high mobility 2DEG from the quasi-classical limit to the quantum Hall regime | Microwave induced resistance oscillations (MIROs) were studied experimentally
over a very wide range of frequencies ranging from ~20 GHz up to ~4 THz, and
from the quasi-classical regime to the quantum Hall effect regime. At low
frequencies regular MIROs were observed, with a periodicity determined by the
ratio of the ... | 0508327v1 |
2005-11-15 | 1/f noise in a dilute GaAs two-dimensional hole system in the insulating phase | We have measured the resistance and the 1/f resistance noise of a
two-dimensional low density hole system in a high mobility GaAs quantum well at
low temperature. At densities lower than the metal-insulator transition one,
the temperature dependence of the resistance is either power-like or simply
activated. The noise ... | 0511375v1 |
2006-02-03 | Observation of the quantized Hall insulator in the quantum critical regime of the two-dimensional electron gas | We have investigated the Hall resistance $R_H$ near the plateau-insulator
transition of a two-dimensional electron gas in the quantum critical regime.
High-field magnetotransport data taken on a low-mobility InGaAs/InP
heterostructure with the plateau-insulator transition at a critical field $B_c$
of 17.2 T show that t... | 0602093v2 |
2006-12-18 | Nonlinear Current of Strongly Irradiated Quantum Hall Gas | Two dimensional electrons in weakly disordered high Landau levels are
considered. The current-field response in the presence of a strong microwave
field, is computed. The disordered Floquet evolution operator allows us to
treat the short range disorder perturbatively, at any strength of electric
fields. A simplifying R... | 0612469v2 |
2007-12-13 | Study of GEM-like detectors with resistive electrodes for RICH applications | We have developed prototypes of GEM-like detectors with resistive electrodes
to be used as RICH photodetectors equipped with CsI photocathodes. The main
advantages of these detectors are their intrinsic spark protection and
possibility to operate at high gain (~10E5) in many gases including poorly
quenched ones, allowi... | 0712.2179v1 |
2008-01-06 | Scaling of Hall Resistivity in the Mixed State of MgB2 Films | The longitudinal resistivity (rho_{xx}) and transverse resistivity (rho_{xy})
of MgB2 thin films in the mixed state were studied in detail. We found that the
temperature dependencies of rho_{xx} and \rho_{xy} at a fixed magnetic field
(H) satisfy the scaling law of $\rho_{xy}=A\rho_{xx}^\beta$, where the exponent
beta ... | 0801.0838v1 |
2008-02-05 | Effect of small particles on the near-wall dynamics of a large particle in a highly bidisperse colloidal solution | We consider the hydrodynamic effect of small particles on the dynamics of a
much larger particle moving normal to a planar wall in a highly bidisperse
dilute colloidal suspension of spheres. The gap $h_0$ between the large
particle and the wall is assumed to be comparable to the diameter $2a$ of the
smaller particles s... | 0802.0608v1 |
2008-07-16 | Influence of doping on the Hall coefficient in Sr_{14-x}Ca_xCu_24O_41 | We present Hall-effect measurements of two-leg ladder compounds
Sr_{14-x}Ca_xCu_24O_41 (0 <= x <= 11.5) with the aim to determine the number of
carriers participating in dc transport. Distribution of holes between the
ladder and chain subsystems is one of the crucial questions important for
understanding the physics of... | 0807.2561v2 |
2008-08-04 | Evidence for the Sr2RuO4 intercalations in the Sr3Ru2O7 region of the Sr3Ru2O7-Sr2RuO4 eutectic system | Although Sr3Ru2O7 has not been reported to exhibit superconductivity so far,
ac susceptibility measurements revealed multiple superconducting transitions
occurring in the Sr3Ru2O7 region cut from Sr3Ru2O7-Sr2RuO4 eutectic crystals.
Based on various experimental results, some of us proposed the scenario in
which Sr2RuO4... | 0808.0434v1 |
2008-08-18 | Field Re-entrant Superconductivity Induced by the Enhancement of Effective Mass in URhGe | High quality single crystals of a ferromagnetic superconductor URhGe were
successfully grown. The electrical resistivity was measured for the field along
b-axis in the orthorhombic crystal structure in order to study precisely its
field re-entrant superconductivity which occurs in the vicinity of the field
$H_{\rm R}$,... | 0808.2500v1 |
2008-10-13 | Observation of a Fractional Quantum Hall State at $ν=1/4$ in a Wide GaAs Quantum Well | We report the observation of an even-denominator fractional quantum Hall
(FQH) state at $\nu=1/4$ in a high quality, wide GaAs quantum well. The sample
has a quantum well width of 50 nm and an electron density of
$n_e=2.55\times10^{11}$ cm$^{-2}$. We have performed transport measurements at
$T\sim35$ mK in magnetic fie... | 0810.2274v1 |
2008-10-23 | Jumps in current-voltage characteristics in disordered films | We argue that giant jumps of current at finite voltages observed in
disordered samples of InO, TiN and YSi manifest a bistability caused by the
overheating of electrons. One of the stable states is overheated and thus
low-resistive, while the other, high-resistive state is heated much less by the
same voltage. The bist... | 0810.4312v2 |
2008-11-20 | A novel non-Fermi-liquid state in the iron-pnictide FeCrAs | We report transport and thermodynamic properties of stoichiometric single
crystals of the hexagonal iron-pnictide FeCrAs. The in-plane resistivity shows
an unusual "non-metallic" dependence on temperature T, rising continuously with
decreasing T from ~ 800 K to below 100 mK. The c-axis resistivity is similar,
except fo... | 0811.3439v1 |
2009-02-25 | Resistive relaxation of a magnetically confined mountain on an accreting neutron star | Three-dimensional numerical magnetohydrodynamic (MHD) simulations are
performed to investigate how a magnetically confined mountain on an accreting
neutron star relaxes resistively. No evidence is found for non-ideal MHD
instabilities on a short time-scale, such as the resistive ballooning mode or
the tearing mode. Ins... | 0902.4484v1 |
2009-12-09 | Coulomb zero bias anomaly for fractal geometry and conductivity of granular systems near the percolation threshold | A granular system slightly below the percolation threshold is a collection of
finite metallic clusters, characterized by wide spectrum of sizes, resistances,
and charging energies. Electrons hop from cluster to clusters via short
insulating "links" of high resistance. At low temperatures all clusters are
Coulomb blocka... | 0912.1701v1 |
2010-02-16 | Pseudogap Phase Boundary in Overdoped Bi_2Sr_2CaCu_2O_8 Studied by Measuring Out-of-plane Resistivity under the Magnetic Fields | The characteristic pseudogap temperature T* in Bi2Sr2CaCu2O8 system has been
systematically evaluated as a function of doping, especially focusing on its
overdoped region, by measuring the out-of-plane resistivity under the magnetic
fields. Overdoped samples have been prepared by annealing TSFZ-grown
Bi2Sr2CaCu2O8 sing... | 1002.3014v1 |
2010-05-13 | Probing top-gated field effect transistor of reduced graphene oxide monolayer made by dielectrophoresis | We demonstrate top-gated field effect transistor made of reduced graphene
oxide (RGO) monolayer (graphene) by dielectrophoresis. Raman spectrum of RGO
flakes of typical size of 5{\mu}m x 5{\mu}m show a single 2D band at 2687 cm-1,
characteristic of a single layer graphene. The two probe current - voltage
measurements o... | 1005.2258v1 |
2010-08-10 | Temperature-dependent resistivity of suspended graphene | In this paper we investigate the electron-phonon contribution to the
resistivity of suspended single layer graphene. In-plane as well as flexural
phonons are addressed in different temperature regimes. We focus on the
intrinsic electron-phonon coupling due to the interaction of electrons with
elastic deformations in th... | 1008.1631v1 |
2010-08-17 | Heat capacity study of BaFe$_{2}$As$_{2}$: effects of annealing | Heat-capacity, X-ray diffraction, and resistivity measurements on a
high-quality BaFe$_{2}$As$_{2}$ sample show an evolution of the
magneto-structural transition with successive annealing periods. After a 30-day
anneal the resistivity in the (ab) plane decreases by more than an order of
magnitude, to 12 $\mu\Omega$cm, ... | 1008.2967v2 |
2010-09-17 | Anomalously strong pinning of the filling factor nu=2 in epitaxial graphene | We explore the robust quantization of the Hall resistance in epitaxial
graphene grown on Si-terminated SiC. Uniquely to this system, the dominance of
quantum over classical capacitance in the charge transfer between the substrate
and graphene is such that Landau levels (in particular, the one at exactly zero
energy) re... | 1009.3450v3 |
2010-10-14 | Resistivity and Hall effect of LiFeAs: Evidence for electron-electron scattering | LiFeAs is unique among the broad family of FeAs-based superconductors,
because it is superconducting with a rather large $T_c\simeq 18$ K under
ambient conditions although it is a stoichiometric compound. We studied the
electrical transport on a high-quality single crystal. The resistivity shows
quadratic temperature d... | 1010.2876v2 |
2010-10-20 | Raychaudhuri's equation and aspects of relativistic charged collapse | We use the Raychaudhuri equation to probe certain aspects related to the
gravitational collapse of a charged medium. The aim is to identify the stresses
the Maxwell field exerts on the fluid and discuss their potential implications.
Particular attention is given to those stresses that resist contraction. After
looking ... | 1010.4211v2 |
2010-12-30 | Pressure-Driven Quantum Criticality in An Iron-Selenide Superconductor | The discovery of superconductivity of about 30 K in iron selenides with very
large magnetic moments simulates the examination of completing orders. Here we
report a finding of pressure- induced suppression of the superconducting
transition temperature Tc and enhancement of the temperature of the resistance
hump TH thro... | 1101.0092v3 |
2011-02-22 | Charged Dilatonic Black Holes and their Transport Properties | We briefly explain the consistency conditions imposed on the effective
holographic theories, which are parameterized by two real exponents
$(\gamma,\delta)$ that control the IR dynamics. The general scaling of DC
resistivity with temperature at low temperature and AC conductivity at low
frequency across the whole $(\ga... | 1102.4440v1 |
2011-03-24 | Collective excitations and low temperature transport properties of bismuth | We examine the influence of collective excitations on the transport
properties (resistivity, magneto- optical conductivity) for semimetals,
focusing on the case of bismuth. We show, using an RPA approximation, that the
properties of the system are drastically affected by the presence of an
acoustic plasmon mode, conseq... | 1103.4850v1 |
2011-03-29 | Substrate Gating of Contact Resistance in Graphene Transistors | Metal contacts have been identified to be a key technological bottleneck for
the realization of viable graphene electronics. Recently, it was observed that
for structures that possess both a top and a bottom gate, the electron-hole
conductance asymmetry can be modulated by the bottom gate. In this letter, we
explain th... | 1103.5773v2 |
2011-05-28 | A New numerical scheme for resistive relativistic MHD using method of characteristics | We present a new numerical method of special relativistic resistive
magnetohydrodynamics with scalar resistivity that can treat a range of
phenomena, from nonrelativistic to relativistic (shock, contact discontinuity,
and Alfv\'en wave). The present scheme calculates the numerical flux of fluid
by using an approximate ... | 1105.5683v1 |
2011-06-02 | High Lundquist Number Resistive MHD Simulations of Magnetic Reconnection: Searching for Secondary Island Formation | Recently, secondary island formation due to the tearing instability of the
Sweet-Parker current sheet was identified as a possible mechanism that can lead
to fast reconnection (less sensitive dependence on Lundquist number $S$) both
in numerical simulations using Particle-in-Cell (PIC) method [Daughton et al.
2009], as... | 1106.0521v1 |
2011-08-03 | Unusual Field-Insensitive Phase Transition and Kondo Behavior in SmTi$_2$Al$_{20}$ | Magnetization, electrical resistivity and specific heat measurements were
performed on high-quality single crystalline SmTi$_2$Al$_{20}$ (residual
resistivity ratio $\sim$ 40) grown by Al self-flux method. A Kondo-like $\log
T$ dependence in the resistivity is observed below 50 K. We discovered a
field-insensitive phas... | 1108.0751v1 |
2011-08-15 | Current-Controlled Negative Differential Resistance due to Joule Heating in TiO2 | We show that Joule heating causes current-controlled negative differential
resistance (CC-NDR) in TiO2 by constructing an analytical model of the
voltage-current V(I) characteristic based on polaronic transport for Ohm's Law
and Newton's Law of Cooling, and fitting this model to experimental data. This
threshold switch... | 1108.3120v1 |
2011-08-25 | Generalized four-point characterization method for resistive and capacitive contacts | In this paper, a four-point characterization method is developed for
resistive samples connected to either resistive or capacitive contacts.
Provided the circuit equivalent of the complete measurement system is known
including coaxial cable and connector capacitances as well as source output and
amplifier input impedan... | 1108.5006v1 |
2011-09-09 | Details of Sample Dependence and Transport Properties of URu2Si2 | Resistivity and specific heat measurements were performed in the low carrier
unconventional superconductor URu2Si2 on various samples with very different
qualities. The superconducting transition temperature (TSC) and the hidden
order transition temperature (THO) of these crystals were evaluated as a
function of the re... | 1109.1953v1 |
2011-11-15 | Phenomenology of retained refractoriness: On semi-memristive discrete media | We study two-dimensional cellular automata, each cell takes three states:
resting, excited and refractory. A resting cell excites if number of excited
neighbours lies in a certain interval (excitation interval). An excited cell
become refractory independently on states of its neighbours. A refractory cell
returns to a ... | 1111.3525v1 |
2011-12-06 | Homogeneous bilayer graphene film based flexible transparent conductor | Graphene is considered a promising candidate to replace conventional
transparent conductors due to its low opacity, high carrier mobility and
flexible structure. Multi-layer graphene or stacked single layer graphenes have
been investigated in the past but both have their drawbacks. The uniformity of
multi-layer graphen... | 1112.1378v1 |
2012-04-12 | Nonequilibrium quasiparticles and electron cooling by normal metal - superconductor tunnel junctions | We consider a model NISIN system with two junctions in series, where N is a
normal metal, S is a superconductor and I is an insulator. We assume that the
resistance of the first junction is high, while the resistance of the second
one is low. In this case the first junction cools the left normal electrode,
while the se... | 1204.2719v1 |
2012-05-31 | High-pressure study of non-Fermi liquid and spin-glass-like behavior in CeRhSn | We present measurements of the temperature dependence of electrical
resistivity of CeRhSn up to ~ 27 kbar. At low temperatures, the electrical
resistivity varies linearly with temperature for all pressures, indicating
non-Fermi liquid behavior. Below a temperature Tf ~ 6 K, the electrical
resistivity deviates from a li... | 1205.6997v1 |
2012-07-13 | Effect of boron doping in the microwave surface resistance of neutron irradiated melt-textured Y_1.6Ba_2.3Cu_3.3O_7-x samples | We report on the microwave surface resistance of melt-textured
Y_1.6Ba_2.3Cu_3.3O_7-x samples, doped with different amount of B_2O_3 and,
subsequently, irradiated by thermal neutrons at the fluence of 1.476 \times
10^17 cm^-2. The microwave surface resistance has been measured as a function
of temperature and DC magnet... | 1207.3306v1 |
2012-08-31 | A Piggyback resistive Micromegas | A novel read-out architecture has been developed for the Micromegas detector.
The anode element is made of a resistive layer on a ceramic substrate. The
detector part is entirely separated from the read-out element. Without
significant loss, signals are transmitted by capacitive coupling to the
read-out pads. The detec... | 1208.6525v2 |
2012-10-18 | Design and Simulation of Molecular Nonvolatile Single-Electron Resistive Switches | We have carried out a preliminary design and simulation of a single-electron
resistive switch based on a system of two linear, parallel,
electrostatically-coupled molecules: one implementing a single-electron
transistor and another serving as a single-electron trap. To verify our design,
we have performed a theoretical... | 1210.5253v1 |
2012-12-11 | Anisotropic magnetization, resistivity and heat capacity of single crystalline R3Ni2-xSn7 (R = La, Ce, Pr and Nd) | We present a detailed study of R3Ni2-xSn7 (R = La, Ce, Pr and Nd) single
crystals by measurements of crystal structure, stoichiometry, temperature
dependent magnetic susceptibility, magnetization, electrical resistivity,
magnetoresistance, and specific heat. This series forms with partial Ni
occupancy with x varying fr... | 1212.2542v1 |
2013-01-21 | Transparent conducting silver nanowire networks | We present a transparent conducting electrode composed of a periodic
two-dimensional network of silver nanowires. Networks of Ag nanowires are made
with wire diameters of 45-110 nm and pitch of 500, 700 and 1000 nm. Anomalous
optical transmission is observed, with an averaged transmission up to 91% for
the best transmi... | 1301.4834v1 |
2013-01-25 | The Role of the Equation of State in Resistive Relativistic Magnetohydrodynamics | We have investigated the role of the equation of state in resistive
relativistic magnetohydrodynamics using a newly developed resistive
relativistic magnetohydrodynamic code. A number of numerical tests in
one-dimension and multi-dimensions are carried out in order to check the
robustness and accuracy of the new code. ... | 1301.6052v1 |
2013-01-28 | On conditions of negativity of friction resistance for non-stationary modes of blood flow and possible mechanism of affecting of environmental factors on energy effectiveness of cardio-vascular system functioning | It is shown that initiated by action of molecular viscosity impulse flow,
directed usually from the moving fluid to limiting it solid surface, can, under
certain conditions, turn to zero and get negative values in the case of
non-stationary flow caused by alternating in time longitudinal (along the pipe
axis) pressure ... | 1301.6603v1 |
2013-02-18 | Resistive wall mode and neoclassical tearing mode coupling in rotating tokamak plasmas | A model system of equations has been derived to describe a toroidally
rotating tokamak plasma, unstable to Resistive Wall Modes (RWMs) and metastable
to Neoclassical Tearing Modes (NTMs), using a linear RWM model and a nonlinear
NTM model. If no wall is present, the NTM growth shows the typical
threshold/saturation isl... | 1302.4250v2 |
2013-03-21 | On-sample water content measurement for a complete local monitoring in triaxial testing of unsaturated soils | To provide a complete local monitoring of the state of an unsaturated soil
sample during triaxial testing, a local water content measurement device was
adapted to a triaxial device comprising the measurement of local displacements
(Hall effect transducers) and suction (High capacity transducer). Water content
was local... | 1303.5348v1 |
2013-07-02 | Structure of Intratumor Heterogeneity: Is Cancer Hedging Its Bets? | Development of resistance limits transferability of most anticancer therapies
into curative treatment and understanding mechanisms beyond it remains a big
challenge. Many high resolution experimental observations show enormous
intratumor heterogeneity at molecular, genetic and cellular levels which is
made responsible ... | 1307.0607v1 |
2013-07-25 | Memory Effect and Triplet Pairing Generation in the Superconducting Exchange Biased Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 Layered Heterostructure | We fabricated a nanolayered hybrid superconductor-ferromagnet spin-valve
structure, the resistive state of which depends on the preceding magnetic field
polarity. The effect is based on a strong exchange bias (about -2 kOe) on a
diluted ferromagnetic copper-nickel alloy and generation of a long range odd in
frequency t... | 1307.6742v1 |
2013-08-28 | Tunneling at $ν_T=1$ in Quantum Hall Bilayers | Interlayer tunneling measurements in the strongly correlated bilayer
quantized Hall phase at $\nu_T=1$ are reported. The maximum, or critical
current for tunneling at $\nu_T=1$, is shown to be a well-defined global
property of the coherent phase, insensitive to extrinsic circuit effects and
the precise configuration us... | 1308.6269v2 |
2013-10-22 | The Effect of Toroidal Magnetic Field on Thickness of a Viscose-Resistive Hot Accreting Flow | By taking into account the effect of toroidal magnetic field and its
correspond heating, we determine the thickness of advection-dominated accretion
flows. We consider an axisymetric, rotating, steady viscous-resistive,
magnetized accretion flow under an advection dominated stage. The dominant
mechanism of energy dissi... | 1310.6317v1 |
2014-02-13 | Theory of measurements of d.c. and a.c. resistivity in anisotropic superconductors in tilted magnetic fields | The vortex dynamics of uniaxial anisotropic superconductors with arbitrary
angles between the magnetic field, the applied current and the anisotropy axis
is theoretically studied, by focusing on the models for electrical transport
experiments in the linear regime. The vortex parameters, such as the viscous
drag, the vo... | 1402.3164v1 |
2014-05-05 | Colossal negative magnetoresistance in a 2D electron gas | We report on a colossal negative magnetoresistance (MR) in GaAs/AlGaAs
quantum well which, at low temperatures, is manifested by a drop of the
resistivity by more than an order of magnitude at a magnetic field $B \approx
1$ kG. In contrast to MR effects discussed earlier, the MR reported here is not
parabolic, even at ... | 1405.1090v1 |
2014-09-30 | Formation of magnetic moments and resistance upturn at grain boundaries of two-dimensional electron systems | Electronic correlations control the normal state of bulk high-Tc cuprates.
Strong correlations also suppress the charge transport through cuprate grain
boundaries (GBs). The question then arises if these correlations can produce
magnetic states at cuprate GBs. We analyze the formation of local magnetic
moments at the G... | 1409.8559v1 |
2014-10-30 | Magnetoresistance of layered conductors under conditions of topological phase transition | The resistance of layered conductors with a multisheet Fermi surface (FS), in
a high magnetic field, in the immediate vicinity of Lifshic's topological
transition when the separate FS sheets are drown together by an external
action, pressure in part (and eventual change of the FS connectivity) is
studied theoretically.... | 1410.8330v1 |
2014-11-10 | The Resistive-WELL detector: a compact spark-protected single amplification-stage MPGD | In this work we present a novel idea for a compact spark-protected single
amplification stage Micro-Pattern Gas Detector (MPGD). The detector
amplification stage, realized with a structure very similar to a GEM foil, is
embedded through a resistive layer in the readout board. A cathode electrode,
defining the gas conve... | 1411.2466v1 |
2015-01-01 | Fast Generation of Random Spanning Trees and the Effective Resistance Metric | We present a new algorithm for generating a uniformly random spanning tree in
an undirected graph. Our algorithm samples such a tree in expected
$\tilde{O}(m^{4/3})$ time. This improves over the best previously known bound
of $\min(\tilde{O}(m\sqrt{n}),O(n^{\omega}))$ -- that follows from the work of
Kelner and M\k{a}d... | 1501.00267v1 |
2015-03-16 | On Resistive Networks of Constant Power Devices | This brief examines the behavior of DC circuits comprised of resistively
interconnected constant power devices, as may arise in DC microgrids containing
micro-sources and constant power loads. We derive a sufficient condition for
all operating points of the circuit to lie in a desirable set, where the
average nodal vol... | 1503.04769v1 |
2015-08-04 | Electron Viscosity, Current Vortices and Negative Nonlocal Resistance in Graphene | Quantum-critical states of diverse strongly correlated systems are predicted
to feature universal collision-dominated transport resembling that of viscous
fluids. However, investigation of these phenomena has been hampered by the lack
of known macroscopic signatures of the hydrodynamic regime at criticality. Here
we id... | 1508.00836v2 |
2015-10-13 | Charge order and suppression of superconductivity in HgBa2CuO4 at high pressures | New insight into the superconducting properties of HgBa2CuO4 (Hg-1201)
cuprates is provided by combined measurements of the electrical resistivity and
single crystal X-ray diffraction under pressure. The changes induced by
increasing pressure up to 20GPa in optimally doped single crystals were
investigated. The resisti... | 1510.03750v1 |
2015-11-15 | Synchronization of two memristive coupled van der Pol oscillators | The objective of this paper is to explore the possibility to couple two van
der Pol (vdP) oscillators via a resistance-capacitance (RC) network comprising
a Ag-TiOx-Al memristive device. The coupling was mediated by connecting the
gate terminals of two programmable unijunction transistors (PUTs) through the
network. In... | 1511.06363v1 |
2015-12-07 | Universality of DC Electrical Conductivity from Holography | We propose a universal formula of dc electrical conductivity in rotational-
and translational- symmetries breaking systems via the holographic duality.
This formula states that the ratio of the determinant of the dc electrical
conductivities along any spatial directions to the black hole area density in
zero-charge lim... | 1512.01917v3 |
2016-01-26 | Observation of An Anisotropic Wigner Crystal | We report a new correlated phase of two-dimensional charged carriers in high
magnetic fields, manifested by an anisotropic insulating behavior at low
temperatures. It appears near Landau level filling factor $\nu=1/2$ in hole
systems confined to wide GaAs quantum wells when the sample is tilted in
magnetic field to an ... | 1601.07135v1 |
2016-02-05 | Investigating Reliability Aspects of Memristor based RRAM with Reference to Write Voltage and Frequency | In this paper, we report the effect of write voltage and frequency on
memristor based Resistive Random Access Memory (RRAM). The above said
parameters have been investigated on the linear drift model of memristor. With
a variation of write voltage from 0.2V to 1.2V and a subsequent frequency
modulation from 1, 2, 4, 10... | 1602.01947v1 |
2016-06-23 | Device and Circuit Interaction Analysis of Stochastic Behaviors in Cross-Point RRAM Arrays | Stochastic behaviors of resistive random access memory (RRAM) play an
important role in the design of cross-point memory arrays. A Monte Carlo
compact model of oxide RRAM is developed and calibrated with experiments on
various device stack configurations. With Monte Carlo SPICE simulations, we
show that an increase in ... | 1606.07457v3 |
2016-07-05 | The Importance of the Electron Mean Free Path for Superconducting RF Cavities | Impurity-doping is an exciting new technology in the field of SRF, producing
cavities with record-high quality factor $Q_0$ and BCS surface resistance that
decreases with increasing RF field. Recent theoretical work has offered a
promising explanation for this anti-Q-slope, but the link between the
decreasing surface r... | 1607.01411v2 |
2016-08-01 | Graphene-based, mid-infrared, room-temperature pyroelectric bolometers with ultrahigh temperature coefficient of resistance | Graphene is ideally suited for photonic and optoelectronic applications, with
a variety of photodetectors (PDs) in the visible, near-infrared (NIR), and THz
reported to date, as well as thermal detectors in the mid-infrared (MIR). Here,
we present a room temperature-MIR-PD where the pyroelectric response of a
LiNbO3 cr... | 1608.00569v1 |
2016-08-07 | Anisotropic physical properties and pressure dependent magnetic ordering of CrAuTe$_4$ | Systematic measurements of temperature dependent magnetization, resistivity
and angle-resolved photoemission spectroscopy (ARPES) at ambient pressure as
well as resistivity under pressures up to 5.25 GPa were conducted on single
crystals of CrAuTe$_4$. Magnetization data suggest that magnetic moments are
aligned antife... | 1608.02213v2 |
2016-08-11 | Anisotropic and strong negative magneto-resistance in the three-dimensional topological insulator Bi2Se3 | We report on high-field angle-dependent magneto-transport measurements on
epitaxial thin films of Bi2Se3, a three-dimensional topological insulator. At
low temperature, we observe quantum oscillations that demonstrate the
simultaneous presence of bulk and surface carriers. The magneto- resistance of
Bi2Se3 is found to ... | 1608.03615v1 |
2016-08-15 | Effect of electrical properties of glass electrodes on the performance of RPC detectors for the INO-ICAL experiment | The India-based Neutrino Observatory (INO) collaboration has chosen glass
Resistive Plate Chambers (RPCs) as the active detector elements for the Iron
Calorimeter (ICAL) experiment. In the present work, we study the electrical
properties such as bulk resistivity and relative permittivity of the glasses
from two differe... | 1608.04230v1 |
2016-12-02 | Random walk hitting times and effective resistance in sparsely connected Erdős-Rényi random graphs | We prove expectation and concentration results for the following random
variables on an Erd\H{o}s-R\'enyi random graph $\mathcal{G}\left(n,p\right)$ in
the sparsely connected regime $\log n + \log\log \log n \leq np < n^{1/10}$:
effective resistances, random walk hitting and commute times, the Kirchoff
index, cover cos... | 1612.00731v2 |
2016-12-26 | Analysis of claims that the brain extracellular impedance is high and non-resistive | Numerous measurements in the brain of the impedance between two extracellular
electrodes have shown that it is approximately resistive in the range of
biological interest, $<10\,$kHz, and has a value close to that expected from
the conductivity of physiological saline and the extracellular volume fraction
in brain tiss... | 1612.08457v5 |
2017-02-02 | Influence of thermal boundary conditions on the current-driven resistive transition in $\mathbf{VO_2}$ microbridges | We investigate the resistive switching behaviour of $\mathrm{VO_2}$
microbridges under current bias as a function of temperature and thermal
coupling with the heat bath. Upon increasing the electrical current bias, the
formation of the metallic phase can progress smoothly or through sharp jumps.
The magnitude and thres... | 1702.00805v1 |
2017-06-05 | Enhancement of superconductivity in NbN nanowires by negative electron-beam lithography with positive resist | We performed comparative experimental investigation of superconducting NbN
nanowires which were prepared by means of positive-and negative electron-beam
lithography with the same positive tone Poly-methyl-methacrylate (PMMA) resist.
We show that nanowires with a thickness 4.9 nm and widths less than 100 nm
demonstrate ... | 1706.01289v2 |
2017-09-26 | Timing and Charge measurement of single gap Resistive Plate Chamber Detectors for INO-ICAL Experiment | The recently approved India-based Neutrino Observatory will use the world's
largest magnet to study atmospheric muon neutrinos. The 50 kiloton Iron
Calorimeter consists of iron alternating with single-gap resistive plate
chambers. A uniform magnetic field of $\sim$1.5 T is produced in the iron using
toroidal-shaped cop... | 1709.08946v1 |
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