2016/03/28 by A. V. Shumilin, E. Ya. Sherman, M. M. Glazov · 2 citations
Physics and Astronomy · #Condensed matter physics #Electron #Hyperfine structure #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum and electron transport phenomena #Quantum decoherence #Quantum mechanics #Spin (aerodynamics) #Spins #Topological Materials and Phenomena #cond-mat.dis-nn #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.94.125305
published as Phys. Rev. B 94, 125305 (2016) · 5 pages, 3 figures + supplementary material
arxiv created 2016/03/28 · openalex publication_date 2016/09/07 · arxiv updated 2016/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study theoretically the spin decoherence and intrinsic spin noise in semiconductor quantum wires caused by an interplay of electrons hopping between the localized states and the hyperfine interaction of electron and nuclear spins. At a sufficiently low density of localization sites the hopping rates have an exponentially broad distribution. It allows the description of the spin dynamics in terms of closely situated ``pairs'' of sites and single ``reaching'' states, from which the series of hops result in electrons localized inside a ``pair.'' The developed analytical model and numerical simulations demonstrate disorder-dependent algebraic tails in the spin decay and power-law singularities features in the low-frequency part of the spin-noise spectrum.