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Spin-polarized (001) surface states of the topological crystalline insulator Pb0.73Sn0.27Se

Wojek, B. M. ; Buczko, R. ; Safaei, S. ; Dziawa, P. ; Kowalski, B. J. ; Berntsen, M. H. ; Thiagarajan, Balasubramanian LU ; Leandersson, Mats LU ; Szczerbakow, A. and Kacman, P. , et al. (2013) In Physical Review B (Condensed Matter and Materials Physics) 87(11).
Abstract
We study the nature of (001) surface states in Pb0.73Sn0.27Se in the newly discovered topological-crystalline-insulator (TCI) phase as well as the corresponding topologically trivial state above the band-gap-inversion temperature. Our calculations predict not only metallic surface states with a nontrivial chiral spin structure for the TCI case, but also nonmetallic (gapped) surface states with nonzero spin polarization when the system is a normal insulator. For both phases, angle- and spin-resolved photoelectron spectroscopy measurements provide conclusive evidence for the formation of these (001) surface states in Pb0.73Sn0.27Se, as well as for their chiral spin structure. DOI: 10.1103/PhysRevB.87.115106
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
87
issue
11
article number
115106
publisher
American Physical Society
external identifiers
  • wos:000315731400002
  • scopus:84874844135
ISSN
1098-0121
DOI
10.1103/PhysRevB.87.115106
language
English
LU publication?
yes
id
5976613a-3e2d-422d-a655-bddb20af8034 (old id 3669927)
date added to LUP
2016-04-01 12:57:18
date last changed
2020-04-01 03:18:29
@article{5976613a-3e2d-422d-a655-bddb20af8034,
  abstract     = {We study the nature of (001) surface states in Pb0.73Sn0.27Se in the newly discovered topological-crystalline-insulator (TCI) phase as well as the corresponding topologically trivial state above the band-gap-inversion temperature. Our calculations predict not only metallic surface states with a nontrivial chiral spin structure for the TCI case, but also nonmetallic (gapped) surface states with nonzero spin polarization when the system is a normal insulator. For both phases, angle- and spin-resolved photoelectron spectroscopy measurements provide conclusive evidence for the formation of these (001) surface states in Pb0.73Sn0.27Se, as well as for their chiral spin structure. DOI: 10.1103/PhysRevB.87.115106},
  author       = {Wojek, B. M. and Buczko, R. and Safaei, S. and Dziawa, P. and Kowalski, B. J. and Berntsen, M. H. and Thiagarajan, Balasubramanian and Leandersson, Mats and Szczerbakow, A. and Kacman, P. and Story, T. and Tjernberg, O.},
  issn         = {1098-0121},
  language     = {eng},
  number       = {11},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Spin-polarized (001) surface states of the topological crystalline insulator Pb0.73Sn0.27Se},
  url          = {http://dx.doi.org/10.1103/PhysRevB.87.115106},
  doi          = {10.1103/PhysRevB.87.115106},
  volume       = {87},
  year         = {2013},
}