title: Revisit the spin-FET: multiple reflection, inelastic scattering, and lateral size effects.
abstract: We revisit the spin-injected field effect transistor (spin-FET) in a framework of the lattice model by applying the recursive lattice Green's function approach. In the one-dimensional case the results of simulations in coherent regime reveal noticeable differences from the celebrated Datta-Das model, which lead us to an improved treatment with generalized result. The simulations also allow us to address inelastic scattering and lateral confinement effects in the control of spins. These issues are very important in the spin-FET device.
authors.affiliation: Department of Physics, Beijing Normal University, Beijing 100875, China.
authors.forename: Luting
authors.initials: L
authors.lastname: Xu
authors.affiliation: Department of Physics, Beijing Normal University, Beijing 100875, China.
authors.forename: Xin-Qi
authors.initials: XQ
authors.lastname: Li
authors.affiliation: International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Qing-feng
authors.initials: QF
authors.lastname: Sun