title: Large tunable Rashba spin splitting of a two-dimensional electron gas in Bi2Se3.
abstract: We report a Rashba spin splitting of a two-dimensional electron gas in the topological insulator Bi(2)Se(3) from angle-resolved photoemission spectroscopy. We further demonstrate its electrostatic control, and show that spin splittings can be achieved which are at least an order-of-magnitude larger than in other semiconductors. Together these results show promise for the miniaturization of spintronic devices to the nanoscale and their operation at room temperature.
authors.affiliation: School of Physics and Astronomy, University of St. Andrews, St. Andrews, Fife KY16 9SS, United Kingdom.
authors.forename: P D C
authors.initials: PD
authors.lastname: King
authors.forename: R C
authors.initials: RC
authors.lastname: Hatch
authors.forename: M
authors.initials: M
authors.lastname: Bianchi
authors.forename: R
authors.initials: R
authors.lastname: Ovsyannikov
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authors.lastname: Lupulescu
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authors.lastname: Landolt
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authors.lastname: Slomski
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authors.lastname: Rienks
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authors.lastname: Fink
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authors.lastname: Lindblad
authors.forename: S
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authors.lastname: Svensson
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authors.lastname: Bao
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authors.lastname: Balakrishnan
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authors.initials: BB
authors.lastname: Iversen
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authors.lastname: Osterwalder
authors.forename: W
authors.initials: W
authors.lastname: Eberhardt
authors.forename: F
authors.initials: F
authors.lastname: Baumberger
authors.forename: Ph
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authors.lastname: Hofmann