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2009•Europhysics Letters (EPL)Open access

Origin and manipulation of the Rashba splitting in surface alloys

Hendrik Bentmann, Friedrich Förster, Gustav Bihlmayer, Е. В. Чулков, Luca Moreschini, M. Grioni, F. Reinert

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Abstract

A novel method is demonstrated to tailor the electronic structure of high- Z surface alloys showing a giant Rashba splitting by means of electron doping. This aims for new model systems to study unconvential spin topologies and for possible applications in the field of spintronics. We give new insights into the origin of the enhanced Rashba effect in the two specific alloys Bi/Cu(111) and Bi/Ag(111) employing angle-resolved photoelectron spectroscopy and first-principles calculations.

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What this paper is about

A novel method is demonstrated to tailor the electronic structure of high- Z surface alloys showing a giant Rashba splitting by means of electron doping. This aims for new model systems to study unconvential spin topologies and for possible applications in the field of spintronics. We give new insights into the origin of the enhanced Rashba effect in the two specific alloys Bi/Cu(111) and Bi/Ag(111) employing angle-resolved photoelectron spectroscopy and first-principles calculations.

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Available abstract

A novel method is demonstrated to tailor the electronic structure of high- Z surface alloys showing a giant Rashba splitting by means of electron doping. This aims for new model systems to study unconvential spin topologies and for possible applications in the field of spintronics. We give new insights into the origin of the enhanced Rashba effect in the two specific alloys Bi/Cu(111) and Bi/Ag(111) employing angle-resolved photoelectron spectroscopy and first-principles calculations.

Key concepts: Spintronics, Rashba effect, X-ray photoelectron spectroscopy, Materials science, Condensed matter physics, Doping, Field (mathematics), Spin (aerodynamics)

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