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Theory of low temperature kinetic phenomena in metals without inversion center is developed. Kinetic properties of a metal without inversion center are described by four kinetic equations for the diagonal (intra-band) and the off-diagonal…

强关联电子 · 物理学 2020-05-19 V. P. Mineev

The in-plane electron mobility has been calculated in InAs/GaSb type-II superlattices at low temperatures. The interface roughness scattering and ionized impurity scattering are investigated as the dominant scattering mechanisms in limiting…

材料科学 · 物理学 2015-02-10 Sara Safa , Asghar Asgari

Using the semiclassical Boltzmann transport theory, we analytically consider dc charge transport in gapless electron-hole (both chiral and non-chiral) systems in the presence of resistive scattering due to static disorder arising from…

无序系统与神经网络 · 物理学 2015-05-11 S. Das Sarma , E. H. Hwang

The formation of polarons due to the interaction between charge carriers and the crystal lattice has been proposed to have wide-ranging effects on charge carrier dynamics in lead--halide perovskites (LHPs). The hypothesis underlying many of…

材料科学 · 物理学 2021-07-14 Matthew J. Wolf , Lewis A. D. Irvine , Alison B. Walker

We have investigated electron transport in Nb doped SrTiO$_3$ single crystals for two doping densities. We find that the resistivity and mobility are temperature dependent in both whereas the carrier concentration is almost temperature…

材料科学 · 物理学 2013-02-11 K. G. Rana , V. Khikhlovskyi , T. Banerjee

We develop a theory for density, disorder, and temperature dependent electrical conductivity of bilayer graphene in the presence of long-range charged impurity scattering as well as an additional short-range disorder of independent origin,…

介观与纳米尺度物理 · 物理学 2010-04-21 S. Das Sarma , E. H. Hwang , E. Rossi

Effective electron mobilities are obtained by transport measurements on InAs nanowire field-effect transistors at temperatures ranging from 10-200 K. The mobility increases with temperature below ~ 30 - 50 K, and then decreases with…

介观与纳米尺度物理 · 物理学 2013-05-27 Nupur Gupta , Yipu Song , Gregory W. Holloway , Urbasi Sinha , Chris Haapamaki , Ray R. LaPierre , Jonathan Baugh

It is argued that topological disorder in amorphous solids can be described by local strains related to local reference crystals and local rotations. An intuitive localization criterion is formulated from this point of view. The Inverse…

无序系统与神经网络 · 物理学 2009-11-13 M. -L. Zhang , Y. Pan , F. Inam , D. A. Drabold

The impurity concentration dependence of superconducting transition temperature $T_c$ is studied within the framework of two band model of order parameter anisotropy. Both intraband and interband electron scattering by nonmagnetic and…

超导电性 · 物理学 2007-05-23 P. I. Arseev , N. K. Fedorov , S. O. Loiko

A two-band model involving the A- and B-valence bands was adopted to analyze the temperature dependent Hall effect measured on N-doped \textit{p}-type ZnO. The hole transport characteristics (mobilities, and effective Hall factor) are…

材料科学 · 物理学 2009-11-11 Takayuki Makino , Akira Ohtomo , A. Tsukazaki , M. Kawasaki , H. Koinuma

We study the effects of charged impurity scattering on the electronic transport properties of <110>-oriented Si nanowires in a gate-all-around geometry, where the impurity potential is screened by the gate, gate oxide and conduction band…

介观与纳米尺度物理 · 物理学 2011-06-07 Martin P. Persson , Hector Mera , Yann-Michel Niquet , Christophe Delerue , Mamadou Diarra

The charge transport properties of hybrid halide perovskites are investigated with a combination of density functional theory including van der Waals interaction and the Boltzmann theory for diffusive transport in the relaxation time…

材料科学 · 物理学 2016-01-29 Carlo Motta , Fedwa El Mellouhi , Stefano Sanvito

Scattering of carriers with ionized impurities governs charge transport in doped semiconductors. However, electron interactions with ionized impurities cannot be fully described with quantitative first-principles calculations, so their…

材料科学 · 物理学 2021-10-12 I-Te Lu , Jin-Jian Zhou , Jinsoo Park , Marco Bernardi

Drag and diffusion of mobile ions in solids are of interest for both purely theoretical and applied scientific communities. This article proposes a theoretical description of ion drag in solids that can be used to estimate ionic…

介观与纳米尺度物理 · 物理学 2022-06-24 Aleksandr Rodin , Keian Noori , Alexandra Carvalho , Antonio Helio Castro Neto

Carrier transport in gated 2D graphene monolayers is theoretically considered in the presence of scattering by random charged impurity centers with density $n_i$. Excellent quantitative agreement is obtained (for carrier density $n >…

介观与纳米尺度物理 · 物理学 2007-10-09 E. H. Hwang , S. Adam , S. Das Sarma

Using the semi-classical Boltzmann theory, we calculate the conductivity as function of the carrier density. As usually, we include the scattering from charged impurities, but conclude that the estimated impurity density is too low in order…

介观与纳米尺度物理 · 物理学 2009-11-13 T. Stauber , N. M. R. Peres , F. Guinea

A transport theory for atomic matter waves in low-dimensional waveguides is outlined. The thermal fluctuation spectrum of magnetic near fields leaking out of metallic microstructures is estimated. The corresponding scattering rate for…

量子物理 · 物理学 2015-06-26 C. Henkel , S. Potting

Both transport $\tau_{tr}$ and elastic scattering times $\tau_{e}$ are experimentally determined from the carrier density dependence of the magnetoconductance of monolayer and bilayer graphene. Both times and their dependences in carrier…

介观与纳米尺度物理 · 物理学 2015-05-13 M. Monteverde , C. Ojeda-Aristizabal , R. Weil , K. Bennaceur , M. Ferrier , S. Gueron , C. Glattli , H. Bouchiat , J. N. Fuchs , D. Maslov

Aluminum nitride is a promising ultra-wide band gap semiconductor for optoelectronics and power electronics. However, its practical applications have been limited by challenges with doping and achieving high electrical conductivity. Recent…

An exact analytical theory is developed for calculating the diffusion coefficient of charge carriers in strongly anisotropic disordered solids with one-dimensional hopping transport mode for any dependence of the hopping rates on space and…

无序系统与神经网络 · 物理学 2012-01-10 A. V. Nenashev , F. Jansson , S. D. Baranovskii , R. Österbacka , A. V. Dvurechenskii , F. Gebhard