title: Resonant spin Hall conductance in two-dimensional electron systems with a Rashba interaction in a perpendicular magnetic field.
abstract: We study transport properties of a two-dimensional electron system with Rashba spin-orbit coupling in a perpendicular magnetic field. The spin-orbit coupling competes with Zeeman splitting to introduce additional degeneracies between different Landau levels at certain magnetic fields. This degeneracy, if occurring at the Fermi level, gives rise to a resonant spin Hall conductance, whose height is divergent as 1/T and whose weight is divergent as -ln(T at low temperatures. The Hall conductance is unaffected by the Rashba coupling.
authors.affiliation: Department of Physics, The University of Hong Kong, Pukfulam Road, Hong Kong, China.
authors.forename: Shun-Qing
authors.initials: SQ
authors.lastname: Shen
authors.forename: Michael
authors.initials: M
authors.lastname: Ma
authors.forename: X C
authors.initials: XC
authors.lastname: Xie
authors.forename: Fu Chun
authors.initials: FC
authors.lastname: Zhang