中文
相关论文

相关论文: Electron-Electron scattering and resistivity of ba…

200 篇论文

The electron-electron scattering increases the resistance of ballistic many-mode channels whose width is smaller than their length. We show that this increase saturates in the limit of infinitely long channels. Because the mechanisms of…

介观与纳米尺度物理 · 物理学 2018-04-12 K. E. Nagaev

We calculate the corrections to the Sharvin conductance of ballistic multimode microcontacts that result from electron--electron scattering in the leads. Using a semiclassical Boltzmann equation, we obtain that these corrections are {\it…

介观与纳米尺度物理 · 物理学 2009-11-13 K. E. Nagaev , O. S. Ayvazyan

We describe a method for numerically incorporating electron--electron scattering in quantum wells for small deviations of the distribution function from equilibrium, within the framework of the Boltzmann equation. For a given temperature…

凝聚态物理 · 物理学 2009-10-28 Ben Yu-Kuang Hu , Karsten Flensberg

The electron--electron scattering does not affect the electrical current in Galilean--invariant systems. We show that nevertheless electron--electron collisions may contribute to the electric resistivity of systems with parabolic spectrum…

介观与纳米尺度物理 · 物理学 2022-09-07 K. E. Nagaev

We report an unconventional temperature dependence of the resistivity in several strongly correlated systems approaching a localized to itinerant electronic transition from the itinerant electron side. The observed resistivity, proportioanl…

强关联电子 · 物理学 2009-11-10 F. Rivadulla , J. -S. Zhou , J. B. Goodenough

The quadratic low-temperature dependence of resistance in ordinary metals is determined by the momentum relaxation due to electron-electron scattering in the presence Umklapp processes and scattering on impurities. In metals without…

强关联电子 · 物理学 2021-05-12 V. P. Mineev

We revisited the influence of electron-electron scattering on the resistivity of a two-dimensional system with linear spectrum. In conventional systems with parabolic spectrum, where Umklapp scattering is either prohibited or ineffective…

介观与纳米尺度物理 · 物理学 2025-05-19 V. M. Kovalev , M. V. Entin , Z. D. Kvon , A. D. Levin , V. A. Chitta , G. M. Gusev , N. N. Mikhailov

Inspired by the problem of elastic wave scattering on wrinkled interfaces, we studied the scattering of ballistic electrons on a wrinkled potential energy region. The electron transmission coefficient depends on both wrinkle amplitude and…

介观与纳米尺度物理 · 物理学 2016-04-20 T. L. Mitran , G. A. Nemnes , L. Ion , Daniela Dragoman

We have studied experimentally and theoretically the influence of electron-electron collisions on the propagation of electron beams in a two-dimensional electron gas for excess injection energies ranging from zero up to the Fermi energy. We…

介观与纳米尺度物理 · 物理学 2009-10-31 H. Predel , H. Buhmann , L. W. Molenkamp , R. N. Gurzhi , A. N. Kalinenko , A. I. Kopeliovich , A. V. Yanovsky

Using a semiclassical Boltzmann equation, we calculate corrections to the Sharvin conductance of a wide 2DEG ballistic contact that result from an electron--electron scattering in the leads. These corrections are dominated by collisions of…

介观与纳米尺度物理 · 物理学 2013-05-29 K. E. Nagaev , T. V. Kostyuchenko

We study the conductance of a quantum wire in the presence of weak electron-electron scattering. In a sufficiently long wire the scattering leads to full equilibration of the electron distribution function in the frame moving with the…

介观与纳米尺度物理 · 物理学 2009-03-19 J. Rech , T. Micklitz , K. A. Matveev

Transport properties of narrow two-dimensional conducting wires in which the electron scattering is caused by side edges' roughness have been studied. The method for calculating dynamic characteristics of such conductors is proposed which…

介观与纳米尺度物理 · 物理学 2013-02-01 N. M. Makarov , Yu. V. Tarasov

We examine the effect on the DC resistivity of small-q electron-phonon scattering, in a system with the electronic topology of the high-T_c oxides. Despite the fact that the scattering is dominantly forward, its contribution to the…

超导电性 · 物理学 2009-10-30 G. Varelogiannis , E. N. Economou

For electrons tunneling between parallel two-dimensional electron systems, conservation of in-plane momentum produces sharply resonant current-voltage characteristics and provides a uniquely sensitive probe of the underlying electronic…

凝聚态物理 · 物理学 2009-10-28 S. Q. Murphy , J. P. Eisenstein , L. N. Pfeiffer , K. W. West

We calculate the electrical and thermal conductivity of a two-dimensional electron gas with strong spin--orbit coupling in which the scattering is dominated by electron--electron collisions. Despite the apparent absence of Galilean…

介观与纳米尺度物理 · 物理学 2020-10-14 K. E. Nagaev , A. A. Manoshin

We experimentally investigate the temperature (T) dependence of the resistance of a classical ballistic point contact (PC) in a two-dimensional electron system (2DES). The split-gate PC is realized in a high-quality AlGaAs/GaAs…

介观与纳米尺度物理 · 物理学 2012-08-23 M. Yu. Melnikov , J. P. Kotthaus , V. Pellegrini , L. Sorba , G. Biasiol , V. S. Khrapai

The electrical conductivity of the switching channel of vanadium dioxide thin-film sandwich structures is studied over a wide temperature range (15-300 K). It is shown that the electrical resistance of the channel varies with temperature as…

材料科学 · 物理学 2020-01-10 Alexander Pergament , Petr Boriskov , Nikolai Kuldin , Andrei Velichko

By studying the temperature-dependent behavior of electron thermal conductivity (k) in a 3.2 nm-thin film, we quantify the extremely confined defect-electron scattering and reveal the intrinsic phonon-electron scattering that is shared by…

介观与纳米尺度物理 · 物理学 2015-01-16 Zhe Cheng , Zaoli Xu , Shen Xu , Xinwei Wang

In this paper the scattering rates of electrons in thin free standing GaAs quantum wires in the electric quantum limit are calculated self-consistently taking into account the collisional broadening caused by scattering processes. The…

介观与纳米尺度物理 · 物理学 2007-05-23 Dmitry Pozdnyakov , Vadim Galenchik , Andrei Borzdov

We report on the effect of elastic intervalley scattering on the energy transport between electrons and phonons in many-valley semiconductors. We derive a general expression for the electron-phonon energy flow rate at the limit where…

无序系统与神经网络 · 物理学 2015-06-25 M. Prunnila , P. Kivinen , A. Savin , P. Torma , J. Ahopelto
‹ 上一页 1 2 3 10 下一页 ›