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相关论文: Unusual thermoelectric behavior of packed crystall…

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We have investigated the thermoelectric power (TEP) of millimeter-long aligned multiwall carbon nanotubes down to a temperature of $T$=1.5 K, and observed for the first time an accurate $T {\rm ln} T$ dependence at low temperatures. This…

强关联电子 · 物理学 2007-05-23 N. Kang , L. Lu , W. J. Kong , J. S. Hu , W. Yi , Y. P. Wang , D. L. Zhang , Z. W. Pan , S. S. Xie

Resistivity and thermoelectric power (TEP) measurements on CeFe$_2$ and two of its pseudo-binaries Ce(Fe, 5% Ir)$_2$ and Ce(Fe, 7% Ru)$_2$ between 78K and 275K are reported. The resistivity data are analysed in terms of contributions from…

Thermoelectric power (TEP) is measured in bilayer graphene for various temperatures and charge-carrier densities. At low temperatures, measured TEP well follows the semiclassical Mott formula with a hyperbolic dispersion relation. TEP for a…

介观与纳米尺度物理 · 物理学 2010-12-14 Seung-Geol Nam , Dong-Keun Ki , Hu-Jong Lee

We have measured the electrical resistivity ($\rho$) and the thermoelectric power (TEP) of the perchlorate (ClO4^-) doped stretch oriented polyacetylene (PA) film. For the highly conducting samples ($\sigma_{RT} > 41000 S/cm$), the…

凝聚态物理 · 物理学 2007-05-23 Y. W. Park , E. S. Choi , D. S. Suh

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…

材料科学 · 物理学 2012-12-05 K. C. Lukas , W. S. Liu , Q. Jie , Z. F. Ren , C. P. Opeil

We investigate transport in a granular metallic system at large tunneling conductance between the grains, $g_T\gg 1$. We show that at low temperatures, $T\leq g_T\delta $, where $\delta$ is the single mean energy level spacing in a grain,…

介观与纳米尺度物理 · 物理学 2009-11-10 I. S. Beloborodov , K. B. Efetov , A. V. Lopatin , V. M. Vinokur

In this work we present a detailed study and derivation of the thermopower and thermoelectric coefficient of nano-granular metals at large tunneling conductance between the grains, g_T>> 1. An important criterion for the performance of a…

介观与纳米尺度物理 · 物理学 2015-05-13 Andreas Glatz , I. S. Beloborodov

Employing the Monte-Carlo method and the exact diagonalization, we have investigated the temperature dependence of the thermoelectric power (TEP) for the double exchange model in the dilute carrier concentration limit. We have found that…

强关联电子 · 物理学 2009-11-13 Beom Hyun Kim , Unjong Yu , Kyoo Kim , B. I. Min

We investigate transport in a granular metallic system at large tunneling conductance between the grains. We show that at low temperatures, $T\leq g_T\delta $, where $\delta$ is the single mean energy level spacing in a grain, the coherent…

介观与纳米尺度物理 · 物理学 2007-05-23 I. S. Beloborodov , K. B. Efetov , A. V. Lopatin , V. M. Vinokur

A possible origin of unusual temperature behavior of transport coefficients observed in densely packed polycrystalline CaAl_{2} compound [M. Ausloos et al., J. Appl. Phys. 96, 7338 (2004)] is discussed, including a power-like dependence of…

材料科学 · 物理学 2007-05-23 S. Sergeenkov , F. M. Araujo-Moreira

We report measurements of the electrical resistivity ($\rho$) and thermoelectric power (S) in a thin film of strained single-crystalline $\alpha$-Sn grown by molecular beam epitaxy on an insulating substrate. The temperature (T) dependence…

强关联电子 · 物理学 2024-06-03 Md Shahin Alam , Alexandr Kazakov , Mujeeb Ahmad , Rajibul Islam , Fei Xue , Marcin Matusiak

We report measurements of the in-plane thermoelectric power (TEP) for an overdoped (OD) crystal of the single layer cuprate superconductor Tl$_2$Ba$_2$CuO$_{6+x}$ (Tl2201) at several hole concentrations ($p$), from 300 or 400 K to below the…

超导电性 · 物理学 2024-01-17 J. R. Cooper , J. C. Baglo , C. Putzke , A. Carrington

Results of the measurements of thermoelectric properties of thin semiconductor microwires of Pb1-xTlxTe (x=0,001-0,02, d=5-100mkm) in the temperature region 4,2-300 K, which were obtained from solution melt by the filling of the quartz…

介观与纳米尺度物理 · 物理学 2007-05-23 E. Zasavitsky

Recent cold atom experiments have observed bad and strange metal behaviors in strongly-interacting Fermi-Hubbard systems. Motivated by these results, we calculate the thermoelectric transport properties of a 2D Fermi-Hubbard system in the…

量子气体 · 物理学 2021-08-27 Thomas G. Kiely , Erich J. Mueller

The thermoelectromotive force and electrical resistivity of the polycrystalline hafnium (Hf) with the grain size of 10 {\mu}m during the process of plastic deformation in the regime of creep at the temperature of 300 K are precisely…

材料科学 · 物理学 2013-02-08 E. V. Karaseva , P. A. Kutsenko , O. P. Ledenyov , V. I. Sokolenko , V. A. Frolov

Heusler type compounds have long been recognized as potential thermoelectric (TE) materials. Here, the experimentally observed TE properties of Fe$_{2}$VAl are understood through electronic structure calculations in the temperature range of…

材料科学 · 物理学 2022-04-20 Shamim Sk , P. Devi , Sanjay Singh , Sudhir K. Pandey

The resistivity in the ferromagnetic state of flux-grown La_{2/3}(Pb,Ca)_{1/3}MnO_3 single crystals, measured in magnetic fields up to 7 T, reveals a strong quadratic temperature dependence at and above 50 K. At lower temperatures, this…

强关联电子 · 物理学 2009-10-30 M. Jaime , P. Lin , M. B Salamon , P. Han

The electronic Seebeck response in a conductor involves the energy-dependent mean free path of the charge carriers and is affected by crystal structure, scattering from boundaries and defects, and strain. Previous photothermoelectric (PTE)…

The presence of strong disorder can significantly impact electrical conduction in metallic systems. Here, we investigate the temperature dependence of the electrical resistivity, $\rho(T)$, in nonmagnetic single crystals of the…

We study thermoelectric properties of inhomogeneous nanogranular materials for weak tunneling conductance between the grains, g_t < 1. We calculate the thermopower and figure of merit taking into account the shift of the chemical potential…

介观与纳米尺度物理 · 物理学 2009-10-16 A. Glatz , I. S. Beloborodov
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