PlumX Metrics
Embed PlumX Metrics

Direct observation of the spin texture in SmB 6 as evidence of the topological Kondo insulator

Nature Communications, ISSN: 2041-1723, Vol: 5, Issue: 1, Page: 4566
2014
  • 192
    Citations
  • 0
    Usage
  • 163
    Captures
  • 0
    Mentions
  • 2
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    192
  • Captures
    163
  • Social Media
    2
    • Shares, Likes & Comments
      2
      • Facebook
        2

Article Description

Topological Kondo insulators have been proposed as a new class of topological insulators in which non-trivial surface states reside in the bulk Kondo band gap at low temperature due to strong spin-orbit coupling. In contrast to other three-dimensional topological insulators, a topological Kondo insulator is truly bulk insulating. Furthermore, strong electron correlations are present in the system, which may interact with the novel topological phase. By applying spin-and angle-resolved photoemission spectroscopy, here we show that the surface states of SmB 6 are spin polarized. The spin is locked to the crystal momentum, fulfilling time reversal and crystal symmetries. Our results provide strong evidence that SmB 6 can host topological surface states in a bulk insulating gap stemming from the Kondo effect, which can serve as an ideal platform for investigating of the interplay between novel topological quantum states with emergent effects and competing orders induced by strongly correlated electrons. © 2014 Macmillan Publishers Limited.

Bibliographic Details

N. Xu; J. H. Dil; R. S. Dhaka; G. Landolt; S. Muff; C. E. Matt; X. Shi; N. C. Plumb; M. Radović; J. Mesot; M. Shi; P. K. Biswas; A. Amato; R. Yu; H. M. Weng; Z. Fang; X. Dai; H. Ding; E. Pomjakushina; K. Conder; S. V. Borisenko

Springer Science and Business Media LLC

Chemistry; Biochemistry, Genetics and Molecular Biology; Physics and Astronomy

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know