Spin Currents in Semiconductor Nanostructures: a Nonequilibrium Green-function Approach
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چکیده
6 SO COUPLINGS IN LOW-DIMENSIONAL SEMICONDUCTORS 10 6.1 Rashba coupling in bulk 2DEG . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Rashba coupling in quantum wires . . . . . . . . . . . . . . . . . . . . . . . . 15 6.2.1 Energy dispersion of Rashba spin-split transverse propagating subbands 15 6.2.2 Spin precession in Rashba quantum wires . . . . . . . . . . . . . . . . . 17 6.3 Discrete representation of effective SO Hamiltonians . . . . . . . . . . . . . . . 18 6.3.1 Discretization of the Rashba SO Hamiltonian . . . . . . . . . . . . . . 19 6.3.2 Discretization of the extrinsic SO Hamiltonian . . . . . . . . . . . . . . 20
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تاریخ انتشار 2009