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Observation of topological crystalline insulator surface states on (111)-oriented Pb1-xSnxSe films

Polley, Craig LU ; Dziawa, P.; Reszka, A.; Szczerbakow, A.; Minikayev, R.; Domagala, J. Z.; Safaei, S.; Kacman, P.; Buczko, R. and Adell, Johan LU , et al. (2014) In Physical Review B (Condensed Matter and Materials Physics) 89(7).
Abstract
We present angle-resolved photoemission spectroscopy measurements of the surface states on in-situ grown (111) oriented films of Pb1-xSnxSe, a three-dimensional topological crystalline insulator. We observe surface states with Dirac-like dispersion at (Gamma) over bar and (M) over bar in the surface Brillouin zone, supporting recent theoretical predictions for this family of materials. We study the parallel dispersion isotropy and Dirac-point binding energy of the surface states, and perform tight-binding calculations to support our findings. The relative simplicity of the growth technique is encouraging, and suggests a clear path for future investigations into the role of strain, vicinality, and alternative surface orientations in... (More)
We present angle-resolved photoemission spectroscopy measurements of the surface states on in-situ grown (111) oriented films of Pb1-xSnxSe, a three-dimensional topological crystalline insulator. We observe surface states with Dirac-like dispersion at (Gamma) over bar and (M) over bar in the surface Brillouin zone, supporting recent theoretical predictions for this family of materials. We study the parallel dispersion isotropy and Dirac-point binding energy of the surface states, and perform tight-binding calculations to support our findings. The relative simplicity of the growth technique is encouraging, and suggests a clear path for future investigations into the role of strain, vicinality, and alternative surface orientations in (Pb,Sn)Se solid solutions. (Less)
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publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
89
issue
7
publisher
American Physical Society
external identifiers
  • wos:000332421900004
  • scopus:84897585096
ISSN
1098-0121
DOI
10.1103/PhysRevB.89.075317
language
English
LU publication?
yes
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0e3adfb1-f833-47a7-9687-710a69aefeaa (old id 4364088)
date added to LUP
2014-04-23 13:56:26
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2017-10-29 04:02:45
@article{0e3adfb1-f833-47a7-9687-710a69aefeaa,
  abstract     = {We present angle-resolved photoemission spectroscopy measurements of the surface states on in-situ grown (111) oriented films of Pb1-xSnxSe, a three-dimensional topological crystalline insulator. We observe surface states with Dirac-like dispersion at (Gamma) over bar and (M) over bar in the surface Brillouin zone, supporting recent theoretical predictions for this family of materials. We study the parallel dispersion isotropy and Dirac-point binding energy of the surface states, and perform tight-binding calculations to support our findings. The relative simplicity of the growth technique is encouraging, and suggests a clear path for future investigations into the role of strain, vicinality, and alternative surface orientations in (Pb,Sn)Se solid solutions.},
  articleno    = {075317},
  author       = {Polley, Craig and Dziawa, P. and Reszka, A. and Szczerbakow, A. and Minikayev, R. and Domagala, J. Z. and Safaei, S. and Kacman, P. and Buczko, R. and Adell, Johan and Berntsen, M. H. and Wojek, B. M. and Tjernberg, O. and Kowalski, B. J. and Story, T. and Thiagarajan, Balasubramanian},
  issn         = {1098-0121},
  language     = {eng},
  number       = {7},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Observation of topological crystalline insulator surface states on (111)-oriented Pb1-xSnxSe films},
  url          = {http://dx.doi.org/10.1103/PhysRevB.89.075317},
  volume       = {89},
  year         = {2014},
}