Helical Topological Superconducting Pairing at Finite Excitation Energies
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
We propose helical topological superconductivity away from the Fermi surface in three-dimensional time-reversal-symmetric odd-parity multiband superconductors. In these systems, pairing between electrons originating from different bands is responsible for the corresponding topological phase transition. Consequently, a pair of helical topological Dirac surface states emerges at finite excitation energies. These helical Dirac surface states are tunable in energy by chemical potential and strength of band splitting. They are protected by time-reversal symmetry combined with crystalline twofold rotation symmetry. We suggest concrete materials in which this phenomenon could be observed.
Details
Original language | English |
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Article number | 266201 |
Number of pages | 8 |
Journal | Physical review letters |
Volume | 132 |
Issue number | 26 |
Publication status | Published - 24 Jun 2024 |
Peer-reviewed | Yes |
External IDs
Scopus | 85197872400 |
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Keywords
ASJC Scopus subject areas
Keywords
- topologische Supraleitung, topological superconductivity