Topological metals and finite-momentum superconductors

Journal Article · Sun Jan 10 23:00:00 EST 2021 · Proceedings of the National Academy of Sciences of the United States of America

DOI:https://doi.org/10.1073/pnas.2019063118· OSTI ID:1756906

Yuan, Noah F. Q. ^[1]; Fu, Liang ^[2]

---

1. Shenzhen JL Computational Science and Applied Research Institute, Shenzhen 518109, China,, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139
2. Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139

Significance

Our work uncovers an interesting connection between topological band theory and superconductivity. While BCS superconductivity at zero magnetic field is largely insensitive to electron wavefunction, in this work we reveal a rich phase diagram of finite-momentum superconductivity in the presence of spin–orbit splitting and Zeeman fields, where electron pairing depends closely on the topology of spin texture on the Fermi surface.

• Sponsoring Organization: USDOE
• Grant/Contract Number: SC0018945
• OSTI ID: 1756906
• Alternate ID(s): OSTI ID: 1851392
• Journal Information: Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 3 Vol. 118; ISSN 0027-8424
• Publisher: Proceedings of the National Academy of Sciences
• Country of Publication: United States
• Language: English