期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 15, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.157003
关键词
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资金
- DARPA-MTO [FA955-10-1-0497]
- DARPA-YFA [N66001-10-1-4025]
- ARO [W911NF-09-1-0248]
- 973 program [2009CB929101]
- NSFC [10734110]
- U.S. DOE (Division of Materials Sciences and Engineering) [DE-FG02-02ER45958]
- Welch Foundation [F-1255]
We show that a chiral (f + if)-wave superconducting pairing may be induced in the lowest heavy hole band of a hole-doped semiconductor thin film through proximity contact with an s-wave superconductor. The chirality of the pairing originates from the 3 pi Berry phase accumulated for a heavy hole moving along a close path on the Fermi surface. There exist three chiral gapless Majorana edge states, in consistence with the chiral (f + if)-wave pairing. We show the existence of zero-energy Majorana fermions in vortices in the semiconductor-superconductor heterostructure by solving the Bogoliubov-de Gennes equations numerically as well as analytically in the strong confinement limit.
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