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We calculate the correction to the conductivity of a disordered ferromagnetic metal due to spin-wave-mediated electron--electron interactions. This correction is the generalization of the Altshuler-Aronov correction to spin-wave-mediated…

介观与纳米尺度物理 · 物理学 2014-07-16 Jeroen Danon , Alessandro Ricottone , Piet W. Brouwer

In disordered metals, electron-electron interactions are the origin of a small correction to the conductivity, the "Altshuler-Aronov correction". Here we investigate the Altshuler-Aronov correction of a conductor in which the electron…

介观与纳米尺度物理 · 物理学 2009-11-13 Piet W. Brouwer , Joern N. Kupferschmidt

Electron-electron interactions are responsible for a correction to the conductance of a diffusive metal, the "Altshuler-Aronov correction" $\delta G_{AA}$. Here we study the counterpart of this correction for a ballistic conductor, in which…

介观与纳米尺度物理 · 物理学 2015-06-12 Martin Schneider , Georg Schwiete , Piet W. Brouwer

It is well known that electron-electron interaction in disordered systems leads to logarithmically divergent Altshuler-Aronov corrections to conductivity at low temperatures ($T\tau\ll 1$; $\tau$ is the elastic mean-free time). This paper…

凝聚态物理 · 物理学 2009-11-07 Gabor Zala , B. N. Narozhny , I. L. Aleiner

We discuss the influence of the electromagnetic environment and the electron-electron interaction on the weak localization correction to the conductivity of a disordered metal. The theory of this phenomenon for sufficiently high…

介观与纳米尺度物理 · 物理学 2007-05-23 Maxim Vavilov , Vinay Ambegaokar

We study diffusive electron-electron interaction correction to conductivity by analyzing simultaneously $\rho_{xx}$ and $\rho_{xy}$ for disordered 2D electron systems in Si in tilted magnetic field. Tilting the field is shown to be a…

介观与纳米尺度物理 · 物理学 2013-05-17 A. Yu. Kuntsevich , L. A. Morgun , V. M. Pudalov

We study the conductivity of a 3D disordered metal close to the antiferromagnetic instability within the framework of the spin-fermion model using the diagrammatic technique. We calculate the interaction correction $\delta\sigma(\omega,T)$…

强关联电子 · 物理学 2013-05-30 S. V. Syzranov , J. Schmalian

A crossover theory connecting Altshuler-Aronov electron-electron interaction corrections and Luttinger liquid behavior in quasi-1D disordered conductors has been formulated. Based on an interacting non-linear sigma model, we compute the…

介观与纳米尺度物理 · 物理学 2007-05-23 Christophe Mora , Reinhold Egger , Alexander Altland

We evaluate the electron-electron interaction corrections to the electronic thermal conductivity in a disordered conductor in the diffusive regime. We use a diagrammatic many-body method analogous to that of Altshuler and Aronov for the…

无序系统与神经网络 · 物理学 2013-05-29 Douglas R. Niven , Robert A. Smith

We investigate quantum corrections to the conductivity due to the interference of electron-electron (electron-phonon) scattering and elastic electron scattering in weakly disordered conductors. The electron-electron interaction results in a…

介观与纳米尺度物理 · 物理学 2009-11-10 A. Sergeev , M. Yu. Reizer , V. Mitin

At low temperatures, the transport coefficients in the disordered electron gas acquire quantum corrections as a result of the complex interplay of disorder and interactions. The interaction corrections to the electric conductivity have…

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

The electron-electron interaction corrections to the transport coefficients are calculated for a two-dimensional disordered metal in a parallel magnetic field via the quantum kinetic equation approach. For the thermal transport, three…

无序系统与神经网络 · 物理学 2007-05-23 G. Catelani

We study the interaction-induced quantum correction \delta\sigma_{\alpha\beta} to the conductivity tensor of electrons in two dimensions for arbitrary T\tau (where T is the temperature and \tau the transport scattering time), magnetic…

介观与纳米尺度物理 · 物理学 2009-11-10 I. V. Gornyi , A. D. Mirlin

The Density of electronic States (DoS) of a two--dimensional square lattice with substitutional impurities is calculated in the presence of short--range electron--electron interactions. In the middle of the energy band, the Bragg…

强关联电子 · 物理学 2009-11-07 E. P. Nakhmedov , V. N. Prigodin

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

Let $\Omega\subset\mathbb{R}^{n+1}$, $n\ge 2$, be a 1-sided chord-arc domain, that is, a domain which satisfies interior Corkscrew and Harnack Chain conditions (these are respectively scale-invariant/quantitative versions of the openness…

经典分析与常微分方程 · 数学 2019-07-24 Juan Cavero , Steve Hofmann , José María Martell

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 consider a two-dimensional electron gas with long range disorder. Assuming that time reversal symmetry is broken either by an external magnetic field or, as in the case of a delta-correlated random magnetic field, by the disorder itself,…

介观与纳米尺度物理 · 物理学 2009-10-31 D. Taras-Semchuk , K. B. Efetov

In the recent study of the metal-insulator transition (MIT) in the disordered crystalline solid SrNbO$_{3-x}$N$_x$ by Daichi Oka et al. [Commun. Phys. 4, 269 (2021)], the data evaluation relies on the Al'tshuler-Aronov theory of the…

无序系统与神经网络 · 物理学 2024-01-04 A. Mobius

We study the weak localization correction (WLC) to transport coefficients of a system of electrons in a static long-range potential (e.g. an antidot array or ballistic cavity). We found that the weak localization correction to the current…

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