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arXiv · 0805.3959

Tunable spin-gaps in a quantum-confined geometry

Emmanouil Frantzeskakis·Stephane Pons·Hossein Mirhosseini·Jurgen Henk·Christian. R. Ast·Marco Grioni
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Abstract

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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Emmanouil Frantzeskakis, Stephane Pons, Hossein Mirhosseini, Jurgen Henk, Christian. R. Ast, Marco Grioni. 2008-06-11. Tunable spin-gaps in a quantum-confined geometry. https://doi.org/10.1103/physrevlett.101.196805

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