Theoretical aspects of the study on the new bismuth chalcogenide based superconductors

Hidetomo Usui; Kazuhiko Kuroki

doi:10.1515/nsm-2015-0005

Theoretical aspects of the study on the new bismuth chalcogenide based superconductors

Superconductivity 2016-05-10 v1

Authors: Hidetomo Usui , Kazuhiko Kuroki

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Abstract

We review theoretical aspects of the studies on the recently discovered BiCh2 (Ch=chalcogen) based superconductors. We first focus on the electronic band structure, the Fermi surface and their correlation with the lattice structure. We then discuss the phonon features and the issue of the lattice instability. Finally, we survey the phonon-mediated as well as the unconventional pairing mechanisms that have been proposed so far.

Keywords

bismuth chalcogenide superconductor BiCh2 electronic band structure Fermi surface phonon pairing mechanism lattice instability

Cite

@article{arxiv.1604.01939,
  title  = {Theoretical aspects of the study on the new bismuth chalcogenide based superconductors},
  author = {Hidetomo Usui and Kazuhiko Kuroki},
  journal= {arXiv preprint arXiv:1604.01939},
  year   = {2016}
}

Comments

27 pages, 17 figures

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