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

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

doi:10.1103/PhysRevLett.107.096802

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

Materials Science 2011-08-29 v2 Mesoscale and Nanoscale Physics Quantum Gases

Authors: 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

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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.

Keywords

Rashba spin splitting two-dimensional electron gas topological insulator Bi2Se3 angle-resolved photoemission spectroscopy electrostatic control spintronics

Cite

@article{arxiv.1103.3220,
  title  = {Large tuneable Rashba spin splitting of a two-dimensional electron gas in Bi2Se3},
  author = {P. D. C. King and R. C. Hatch and M. Bianchi and R. Ovsyannikov and C. Lupulescu and G. Landolt and B. Slomski and J. H. Dil and D. Guan and J. L. Mi and E. D. L. Rienks and J. Fink and A. Lindblad and S. Svensson and S. Bao and G. Balakrishnan and B. B. Iversen and J. Osterwalder and W. Eberhardt and F. Baumberger and Ph. Hofmann},
  journal= {arXiv preprint arXiv:1103.3220},
  year   = {2011}
}

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5 pages, 4 figures. Substantially revised

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

Abstract

Keywords

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