Nonequilibrium spin transport on Au(111) surfaces
Nonequilibrium spin transport on Au(111) surfaces
The well-known experimentally observed $sp$-derived Au(111) Shockley surface states with Rashba spin splitting are perfectly fit by an effective tight-binding model, considering a two-dimensional hexagonal lattice with ${p}_{z}$ orbital and nearest-neighbor hopping only. The extracted realistic band parameters are then imported to perform the Landauer-Keldysh formalism to calculate nonequilibrium spin …