Tuning the spin texture in binary and ternary surface alloys on Ag(111)

Abstract

Recently, a giant spin splitting has been observed in surface alloys on noble metal (111) surfaces as a result of a strong structural modification at the surface as well as the large atomic spin-orbit interaction (SOI) of the alloy atoms. These surface alloys are an ideal playground to manipulate both the size of the spin splitting as well as the position of the Fermi level as it is possible to change the atomic SOI as well as the relaxation by varying alloy atoms and substrates. Using spin- and angle-resolved photoemission spectroscopy in combination with quantitative low energy electron diffraction we have studied the mixed binary Bi(x)Sb(1-x)/Ag(111) and the mixed ternary Bi(x)Pb(y)Sb(1-x-y)/Ag(111) surface alloys where we observed a continuous evolution of the band structure with x and y.

6 pages, 5 figures, 1 table

References in corpus (5)

• Strong spin-orbit splitting on Bi surfaces
• Topological Change of the Fermi Surface in Low Density Rashba Gases: Application to Superconductivity
• The Structural Influence on the Rashba-type Spin-Splitting in Surface Alloys
• Unconventional Fermi surface spin textures in the Bi_xPb_{1-x}/Ag(111) surface alloy
• Tuning independently Fermi energy and spin splitting in Rashba systems: Ternary surface alloys on Ag(111)

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• Topological superconductivity in Fibonacci quasicrystals
• Spin-orbit related power-law dependence of the diffusive conductivity on the carrier density in disordered Rashba two-dimensional electron systems
• Atomic and mesoscopic structure of Dy-based surface alloys on noble metals