TY  - JOUR
AU  - Bahari, Masoud
AU  - Zhang, Song-Bo
AU  - Li, Chang-An
AU  - Choi, Sang-Jun
AU  - Rüßmann, Philipp
AU  - Timm, Carsten
AU  - Trauzettel, Björn
TI  - Helical Topological Superconducting Pairing at Finite Excitation Energies
JO  - Physical review letters
VL  - 132
IS  - 26
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2024-04278
SP  - 266201
PY  - 2024
N1  - arXiv preprint available at: https://doi.org/10.48550/arXiv.2210.11955
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 38996321
UR  - <Go to ISI:>//WOS:001255385700001
DO  - DOI:10.1103/PhysRevLett.132.266201
UR  - https://juser.fz-juelich.de/record/1027985
ER  -