title: Kondo spin screening cloud in two-dimensional electron gas with spin-orbit couplings.
abstract: A spin-1/2 Anderson impurity in a semiconductor quantum well with Rashba and Dresselhaus spin-orbit couplings is studied by using a variational wavefunction method. The local magnetic moment is found to be quenched at low temperatures. The spin-spin correlations of the impurity and the conduction electron density show anisotropy in both spatial and spin spaces, which interpolates the Kondo spin screenings of a conventional metal and of a surface of three-dimensional topological insulators.
authors.affiliation: Department of Physics, Normal University of Hangzhou, Hangzhou 310036, People's Republic of China.
authors.forename: Xiao-Yong
authors.initials: XY
authors.lastname: Feng
authors.forename: Fu-Chun
authors.initials: FC
authors.lastname: Zhang
mesh_terms: D016880:Anisotropy; D055590:Electromagnetic Phenomena; D004583:Electrons; D005740:Gases / Q000737:chemistry*; D016252:Microscopy, Scanning Tunneling / Q000379:methods; D009915:Orbit / Q000737:chemistry*; D012666:Semiconductors / Q000295:instrumentation*
chemical_list: D005740:Gases