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Large tunable Rashba spin splitting of a two-dimensional electron gas in Bi2Se3 |
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| Authors: | King P D C Hatch R C Bianchi M Ovsyannikov R Lupulescu C Landolt G Slomski B Dil J H Guan D Mi J L Rienks E D L Fink J Lindblad A Svensson S Bao S Balakrishnan G Iversen B B Osterwalder J Eberhardt W Baumberger F Hofmann Ph |
| Institution: | School of Physics and Astronomy, University of St. Andrews, St. Andrews, Fife KY16 9SS, United Kingdom. |
| 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. |
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