title: Acoustically induced spin-orbit interactions revealed by two-dimensional imaging of spin transport in GaAs.
abstract: Magneto-optic Kerr microscopy was employed to investigate the spin-orbit interactions of electrons traveling in semiconductor quantum wells using surface acoustic waves (SAWs). Two-dimensional images of the spin flow induced by SAWs exhibit anisotropic spin precession behaviors caused by the coexistence of different types of spin-orbit interactions. The dependence of spin-orbit effective magnetic fields on SAW intensity indicates the existence of acoustically controllable spin-orbit interactions resulting from the strain and Rashba contributions induced by the SAWs.
authors.affiliation: NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan. sanada.haruki@lab.ntt.co.jp
authors.forename: H
authors.initials: H
authors.lastname: Sanada
authors.forename: T
authors.initials: T
authors.lastname: Sogawa
authors.forename: H
authors.initials: H
authors.lastname: Gotoh
authors.forename: K
authors.initials: K
authors.lastname: Onomitsu
authors.forename: M
authors.initials: M
authors.lastname: Kohda
authors.forename: J
authors.initials: J
authors.lastname: Nitta
authors.forename: P V
authors.initials: PV
authors.lastname: Santos