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In typical thermoelectric energy harvesters and sensors, the Seebeck effect is caused by diffusion of electrons or holes in a temperature gradient. However, the Seebeck effect can also have a phonon drag component, due to momentum exchange…

Two-dimensional (2D) metals can host gapless plasmonic excitations, which strongly couple to electrons and thus may significantly affect superconductivity in layered materials. To investigate the dynamical interplay of the electron-electron…

超导电性 · 物理学 2024-08-21 Yann in 't Veld , Mikhail I. Katsnelson , Andrew J. Millis , Malte Rösner

We theoretically study phonon-drag contribution to the thermoelectric power and hot-electron energy-loss rate in a Rashba spin-orbit coupled two-dimensional electron system (2DES) in the Bloch-Gruneisen (BG) regime. We assume that electrons…

介观与纳米尺度物理 · 物理学 2013-06-12 Tutul Biswas , Tarun Kanti Ghosh

We report on the novel mechanism of electron scattering in hybrid Bose-Fermi systems consisting of a two-dimensional electron gas in the vicinity of an exciton condensate: We show that a pair-of-bogolons--mediated scattering proves to be…

介观与纳米尺度物理 · 物理学 2019-09-04 Kristian Hauser A. Villegas , Meng Sun , Vadim M. Kovalev , Ivan G. Savenko

Magnetic layered materials have emerged recently as promising systems to introduce magnetism in structures based on two-dimensional (2D) materials and to investigate exotic magnetic ground states in the 2D limit. In this work, we apply high…

A variational solution of the coupled electron-phonon Boltzmann equations is used to calculate the phonon drag contribution to the thermopower in a 1-D system. A simple formula is derived for the temperature dependence of the phonon drag in…

介观与纳米尺度物理 · 物理学 2007-05-23 V. W. Scarola , G. D. Mahan

The temperature dependence of phonon-induced resistance oscillations has been investigated in two-dimensional electron system with moderate mobility at large filling factors at temperature range T = 7.4 - 25.4 K. The amplitude of…

介观与纳米尺度物理 · 物理学 2010-01-18 A. A. Bykov , A. V. Goran

The response of composite Fermions to large wavevector scattering has been studied through phonon drag measurements. While the response retains qualitative features of the electron system at zero magnetic field, notable discrepancies…

介观与纳米尺度物理 · 物理学 2009-10-31 S. Zelakiewicz , H. Noh , T. J. Gramila , L. N. Pfeiffer , K. W. West

We present a first-principles study of the temperature- and density-dependent intrinsic electrical resistivity of graphene. We use density-functional theory and density-functional perturbation theory together with very accurate Wannier…

We study thermoelectric transport through a coherent molecular conductor connected to two electron and two phonon baths using the nonequilibrium Green's function method. We focus on the mutual drag between electron and phonon transport as a…

介观与纳米尺度物理 · 物理学 2016-05-11 Jing-Tao Lü , Jian-Sheng Wang , Per Hedegård , Mads Brandbyge

We present a combined treatment of the non-equilibrium dynamics and transport of electrons and phonons by carrying out \textit{ab initio} calculations of the fully coupled electron and phonon Boltzmann transport equations. We find that the…

材料科学 · 物理学 2020-12-30 Nakib H. Protik , Boris Kozinsky

We report on the first measurements of the drag effect between coupled 2D-hole gases. We investigate the coupling by changing the carrier densities in the quantum wells, the widths of the barriers between the gases and the perpendicular…

介观与纳米尺度物理 · 物理学 2009-10-31 C. Joerger , S. J. Cheng , H. Rubel , W. Dietsche , R. Gerhardts , P. Specht , K. Eberl , K. von Klitzing

Non-diffusive, fluid-like transport of charge and heat has been observed in several materials, raising the question of whether they can emerge simultaneously and how they are related to bi-component electron-phonon fluids. Here we introduce…

介观与纳米尺度物理 · 物理学 2026-03-23 Jennifer Coulter , Bogdan Rajkov , Michele Simoncelli

Electron and phonon correlations in systems of one-dimensional electrons coupled to phonons are studied at low temperatures by emphasizing on the effect of electron-phonon backward scattering. It is found that the $2k_F$-wave components of…

强关联电子 · 物理学 2009-11-13 Leiming Chen

We investigate resonant acoustic phonon scattering in the magneto-resistivity of an ultra-high mobility two-dimensional electron gas system subject to DC current in the temperature range 10 mK to 3.9 K. For a DC current density of $\sim$1.1…

介观与纳米尺度物理 · 物理学 2026-01-01 Z. T. Wang , M. Hilke , N. Fong , D. G. Austing , S. A. Studenikin , K. W. West , L. N. Pfeiffer

We investigate the possibility of using phonon-drag imaging for the study of 2D electrons in (110) AlAs quantum wells. Our numerical simulations show that direct information on the strain and quantum confinement dependent valley occupancy…

介观与纳米尺度物理 · 物理学 2012-02-17 Dietmar Lehmann , Czeslaw Jasiukiewicz

We investigated theoretically the Coulomb drag effect in coupled 2D electron gases in a wide interval of magnetic field and temperature $ 1/\tau \ll \omega_c \ll E_F/\hbar$, $T \ll E_F$, $\tau$ being intralayer scattering time, $\omega_c$…

介观与纳米尺度物理 · 物理学 2016-08-31 A. V. Khaetskii , Yuli V. Nazarov

The infuence of the conduction-electron spin magnetization density, induced in a two-dimensional electron layer by a microwave electromagnetic field, on the rejection and transmission of the field is considered. Because of the induced…

介观与纳米尺度物理 · 物理学 2016-06-29 Victor M. Edelstein

The capacity to electrically detect phonons, ultimately at the single-phonon limit, is a key requirement for many schemes for phonon-based quantum computing, so-called quantum phononics. Here, we predict that by exploiting the strong…

介观与纳米尺度物理 · 物理学 2023-01-20 Ali Kefayati , Jonathan P. Bird , Vasili Perebeinos

We studied experimentally the role of phonon dimensionality on electron-phonon (e-p) interaction in thin copper wires evaporated either on suspended silicon nitride membranes or on bulk substrates, at sub-Kelvin temperatures. The power…

介观与纳米尺度物理 · 物理学 2007-11-26 J. T. Karvonen , I. J. Maasilta