2016年10月
Topologically stable gapless phases in nonsymmorphic superconductors
PHYSICAL REVIEW B
- ,
- ,
- 巻
- 94
- 号
- 13
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevB.94.134512
- 出版者・発行元
- AMER PHYSICAL SOC
We study the topological stability of nodes in nonsymmorphic superconductors (SCs). In particular, we demonstrate that line nodes in nonsymmorphic odd-parity SCs are protected by the interplay between topology and nonsymmorphic symmetry. As an example, it is shown that the E-2u-superconducting state of UPt3 hosts the topologically stable line node at the Brillouin zone face. Our theory indicates that the existence of spin-orbit coupling is essential for protecting such a line node, complementing Norman's group theory argument. Developing the topological arguments, we also propose a generalization to point nodes and to other symmetry cases beyond the group theory arguments.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevB.94.134512
- ISSN : 2469-9950
- eISSN : 2469-9969
- Web of Science ID : WOS:000385620700003