Surface and bulk Fermiology and band dispersion in non-centrosymmetric BiTeI

Gabriel Landolt; Sergey V. Eremeev; Yury M. Koroteev; Bartosz Slomski; Stefan Muff; Masaki Kobayashi; Vladimir N. Strocov; Thorsten Schmitt; Ziya S. Aliev; Mahammad B. Babanly; Imamaddin R. Amiraslanov; Evgueni V. Chulkov; Jurg Osterwalder; J. Hugo Dil

doi:10.1103/PhysRevLett.109.116403

Surface and bulk Fermiology and band dispersion in non-centrosymmetric BiTeI

Materials Science 2015-06-04 v1 Strongly Correlated Electrons

Authors: Gabriel Landolt , Sergey V. Eremeev , Yury M. Koroteev , Bartosz Slomski , Stefan Muff , Masaki Kobayashi , Vladimir N. Strocov , Thorsten Schmitt , Ziya S. Aliev , Mahammad B. Babanly , Imamaddin R. Amiraslanov , Evgueni V. Chulkov , Jurg Osterwalder , J. Hugo Dil

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Abstract

BiTeI has a layered and non-centrosymmetric structure where strong spin-orbit interaction leads to a giant spin splitting in the bulk bands. Here we present high-resolution angle-resolved photoemission (ARPES) data in the UV and soft x-ray regime that clearly disentangle the surface from the bulk electronic structure. Spin-resolved UV-ARPES measurements on opposite, non-equivalent surfaces show identical spin structures, thus clarifying the surface state character. Soft x-ray ARPES data clearly reveal the spindle-torus shape of the bulk Fermi surface, induced by the spin-orbit interaction.

Keywords

BiTeI non-centrosymmetric spin-orbit coupling ARPES Fermi surface surface state

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@article{arxiv.1204.2196,
  title  = {Surface and bulk Fermiology and band dispersion in non-centrosymmetric BiTeI},
  author = {Gabriel Landolt and Sergey V. Eremeev and Yury M. Koroteev and Bartosz Slomski and Stefan Muff and Masaki Kobayashi and Vladimir N. Strocov and Thorsten Schmitt and Ziya S. Aliev and Mahammad B. Babanly and Imamaddin R. Amiraslanov and Evgueni V. Chulkov and Jurg Osterwalder and J. Hugo Dil},
  journal= {arXiv preprint arXiv:1204.2196},
  year   = {2015}
}

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10 pages, 4 figures, submitted to PRL

Surface and bulk Fermiology and band dispersion in non-centrosymmetric BiTeI

Abstract

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