Tunable spin-gaps in a quantum-confined geometry

Details Tunable spin-gaps in a quantum-confined geometry Tunable spin-gaps in a quantum-confined geometry

2008-05-26

arxiv.org/abs/0805.3959v2

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevLett.101.196805

We have studied the interplay of a giant spin-orbit splitting and of quantum confinement in artificial Bi-Ag-Si trilayer structures. Angle-resolved photoelectron spectroscopy (ARPES) reveals the formation of a complex spin-dependent gap structure, which can be tuned by varying the thickness of the Ag buffer layer. This provides a means to tailor the electronic structure at the Fermi energy, with potential applications for silicon-compatible spintronic devices.

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