Large tunable Rashba spin splitting of a two-dimensional electron gas in Bi2Se3.

نویسندگان

  • P D C King
  • R C Hatch
  • M Bianchi
  • R Ovsyannikov
  • C Lupulescu
  • G Landolt
  • B Slomski
  • J H Dil
  • D Guan
  • J L Mi
  • E D L Rienks
  • J Fink
  • A Lindblad
  • S Svensson
  • S Bao
  • G Balakrishnan
  • B B Iversen
  • J Osterwalder
  • W Eberhardt
  • F Baumberger
  • Ph Hofmann
چکیده

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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عنوان ژورنال:
  • Physical review letters

دوره 107 9  شماره 

صفحات  -

تاریخ انتشار 2011