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We demonstrate that forward electron-electron scattering due to Coulomb interation in a two-dimensional ballistic electron gas leads to the (T\ln {T})^{-1} temperature dependence of the thermal conductivity, which is logarithmically…

介观与纳米尺度物理 · 物理学 2007-05-23 A. O. Lyakhov , E. G. Mishchenko

In recent years systematic experimental studies of the temperature dependence of the resistivity in a variety of dilute, ultra clean two dimensional electron/hole systems have revived the fundamental question of localization or,…

无序系统与神经网络 · 物理学 2015-06-24 Alexander Punnoose , Alexander M. Finkel'stein

We present an effective theory describing the low-energy properties of an interacting 2D electron gas at large non-integer filling factors $\nu\gg 1$. Assuming that the interaction is sufficiently weak, $r_s < 1$, we integrate out all the…

凝聚态物理 · 物理学 2009-10-28 I. L. Aleiner , L. I. Glazman

In this review, the thermoelectric properties in nodal-point semimetals with two bands are discussed. For the two-dimensional (2D) cases, it is shown that the expressions of the thermoelectric coefficients take different values depending on…

介观与纳米尺度物理 · 物理学 2024-12-30 Ipsita Mandal , Kush Saha

The results of an experimental study of interaction quantum correction to the conductivity of two-dimensional electron gas in A$_3$B$_5$ semiconductor quantum well heterostructures are presented for a wide range of $T\tau$-parameter…

无序系统与神经网络 · 物理学 2008-12-02 G. M. Minkov , A. A. Sherstobitov , A. V. Germanenko , O. E. Rut , V. A. Larionova , A. K. Bakarov , B. N. Zvonkov

Novel intrinsic two-dimensional materials have attracted many researchers' attention. The unusual transport and optical properties of these materials originate mainly from triangular lattices (TLs). Therefore, the application of energy…

介观与纳米尺度物理 · 物理学 2020-09-25 David M T Kuo

We develop a theory of thermal transport of weakly interacting electrons in quantum wires. Unlike higher-dimensional systems, a one-dimensional electron gas requires three-particle collisions for energy relaxation. The fastest relaxation is…

介观与纳米尺度物理 · 物理学 2015-05-30 Alex Levchenko , Tobias Micklitz , Zoran Ristivojevic , K. A. Matveev

Electron gases in metals are described as quantum charged Newtonian viscous fluids experiencing Ohmic Darcy friction on the solid lattice ions as well. The dispersion relation of the electron acoustic waves is derived, which shows the…

其他凝聚态物理 · 物理学 2011-04-20 Radomir Slavchov , Roumen Tsekov

We reveal a dramatic departure of electron thermodiffusion in solids relative to the commonly accepted picture of the ideal free-electron gas model. In particular, we show that the interaction with the lattice and impurities, combined with…

介观与纳米尺度物理 · 物理学 2020-10-28 Deng Pan , Hongxing Xu , F. Javier García de Abajo

We calculate the dynamic effective electron-electron interaction potential for a low density disordered two-dimensional electron gas. The disordered response function is used to calculate the effective potential where the scattering rate is…

强关联电子 · 物理学 2009-10-31 J. S. Thakur , D. Neilson

We study thermoelectric phenomena in a system consisting of strongly correlated quantum dot coupled to external leads in the Kondo regime. We calculate linear and nonlinear electrical and thermal conductance and thermopower of the quantum…

介观与纳米尺度物理 · 物理学 2009-11-13 M. Krawiec , K. I. Wysokinski

We study interaction corrections to the thermoelectric transport coefficient $\alpha$ and the thermopower $S$ in the two-dimensional disordered electron gas with long-range Coulomb interactions. To this end, we analyze the heat…

介观与纳米尺度物理 · 物理学 2024-11-05 Zahidul Islam Jitu , Georg Schwiete

Thermodynamic properties of matter are conveniently expressed as functional relations between variables known as equations of state. Here we experimentally determine the compressibility, density and pressure equations of state for an…

量子气体 · 物理学 2016-02-12 K. Fenech , P. Dyke , T. Peppler , M. G. Lingham , S. Hoinka , H. Hu , C. J. Vale

Ab-initio calculations of charge transport properties in materials without adjustable parameters have provided microscopic insights into electron-phonon interactions which govern charge transport properties. Other transport properties such…

材料科学 · 物理学 2023-10-04 Benjamin Hatanpää , Austin J. Minnich

In this work, we study how the combination of rotation and a topological defect can influence the energy spectrum of a two dimensional electron gas in a strong perpendicular magnetic field. A deviation from the linear behavior of the energy…

介观与纳米尺度物理 · 物理学 2017-09-11 Julio Brandão , Cleverson Filgueiras , Moises Rojas , Fernando Moraes

The response of two-dimensional electron gas to temperature gradient in perpendicular magnetic field under steady-state microwave irradiation is studied theoretically. The electric currents induced by temperature gradient and the…

介观与纳米尺度物理 · 物理学 2015-05-25 O. E. Raichev

Implying perturbation theory, the impact of the dipole dipole interaction (DDI) on the thermodynamic properties of a homogeneous electron gas at zero temperature is investigated. Through the second quantization formalism, the analytic…

强关联电子 · 物理学 2018-12-10 G. H. Bordbar , F. Pouresmaeeli

Thermoelectric properties of a two-level molecule attached to the metallic electrodes are analyzed using the equation of motion technique within the Green function formalism. Results show that the electrical conductance is strongly…

介观与纳米尺度物理 · 物理学 2015-06-11 M. Bagheri Tagani , H. Rahimpour Soleimani

A quasi-two-dimensional (Q2D) electron liquid (EL) is formed at the interface of a semiconductor heterojunction. For an accurate characterization of the Q2D EL, many-body effects need to be taken into account beyond the random phase…

凝聚态物理 · 物理学 2009-10-28 C. Bulutay , M. Tomak

The flow of a thermoelectric current through a semiconductor of submicron dimensions is analyzed. The rate of surface relaxation of the energy is assumed to be much higher than the rate of electron-electron collisions. Under these…

凝聚态物理 · 物理学 2007-05-23 Yu. G. Gurevich , G. N. Logvinov , O. Yu. Titov