2003/12/30 by I. S. Burmistrov
Engineering · Materials Science · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Organic and Molecular Conductors Research #Quantum and electron transport phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1134/1.1738718
published as Pis'ma v ZhETF 79, 212 (2004) [JETP Letters 79, 177 (2004)] · 6 RevTeX pages, 5 figures
arxiv created 2003/12/30 · openalex publication_date 2004/02/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
We study the conductivity of two-dimensional interacting electrons on the half-filled Nth Landau level with N≫1 in the presence of quenched disorder. The existence of the unidirectional charge-density wave state at temperature T<T c , where T c is the transition temperature, leads to the anisotropic conductivity tensor. We find that the leading anisotropic corrections are proportional to (T c −T)/T c just below the transition, in accordance with the experimental findings. Above T c , the correlations corresponding to the unidirectional charge-density wave state below T c result in corrections to the conductivity proportional to √ Tc \mathord/ \vphantom Tc T - Tc . \kern-\nulldelimiterspace T - Tc .