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Large tunable Rashba spin splitting of a two-dimensional electron gas in Bi(2)Se(3)
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(2011) Large tunable Rashba spin splitting of a two-dimensional electron gas in Bi(2)Se(3). Physical Review Letters, Vol.107 (No.9). 096802. doi:10.1103/PhysRevLett.107.096802 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.107.096802
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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