Physical Review Letters · 2010 · 25 citations · 20 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsSolid State PhysicsSpectroscopyMagnetic Properties Of SolidsMagnetism In SolidsMetalsSpintronic MaterialsSurface MagnetismSurface PhysicsAngle-resolved Photoelectron SpectroscopyAngle-resolved Photoemission SpectroscopyDegeneracyDegenerate StatesRashba EffectSpin-dependent Surface StatesSpin-resolved Photoelectron SpectroscopySurface States
The electronic structure of ultrathin Ag(111) films covered with a square root(3) x square root(3)-Bi/Ag ordered alloy was investigated by means of spin- and angle-resolved photoemission spectroscopy. Surface-state (SS) bands, spin split by the Rashba interaction, selectively couple to the quantum-well state (QWS) bands, originally spin degenerate, in the metal film. Gaps are found to open between QWS and SS with parallel spins, while free-electron-like QWS dispersions are observed for antiparallel spin configurations. The present results demonstrate that in a nonmagnetic metal film the spin degeneracy of the valence levels can be lifted by hybridization with Rashba-type SS bands.
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Giant Spin Splitting through Surface Alloying
Christian R. Ast, Jürgen Henk, A. Ernst et al. · Physical Review Letters · 2007 · 847 citations · Full text
Photoemission studies of quantum well states in thin films
T.‐C. Chiang · Surface Science Reports · 2000 · 542 citations