Control of spin-splitting energy bands by quantum confinement in Ag/Au(111) investigated by laser-SARPES

Abstract

The Rashba effect, which cause spin-slitting in a system without inversion symmetry, has been investigated in various materials for future spintronic applications. In this contribution, we will report our observation of quantum number dependent spin-splitting in quantum well states in Ag/Au(111) by spin-resolved photoemission. In addition, we found by DFT calculations that this behavior can be well explained by the quantum number dependence of the charge density distributions in the quantum well states.