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Topological quantum phase transitions in the spin-singlet superconductor with Rashba and Dresselhaus (110) spin-orbit couplings

Abstract:

We examine the topological properties of a spin-singlet superconductor with Rashba and Dresselhaus (110) spin-orbit couplings. We demonstrate that there are several topological invariants in the Bogoliubov-de Gennes (BdG) Hamiltonian by symmetry analysis. In particular, the Pfaffian invariant P for the particle-hole symmetry can be used to demonstrate all the possible phase diagrams of the BdG Hamiltonian. We find that the edge spectrum is either Dirac cone or flat band which supports the eme...

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Publication status:
Published

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Publisher copy:
10.1016/j.aop.2014.06.009

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Publisher:
Academic Press Inc.
Journal:
ANNALS OF PHYSICS More from this journal
Volume:
349
Pages:
189-200
Publication date:
2014-10-01
DOI:
EISSN:
1096-035X
ISSN:
0003-4916
Language:
English
Keywords:
Pubs id:
pubs:476964
UUID:
uuid:8b8bed16-6c1f-490b-8240-64d1862bb2c3
Local pid:
pubs:476964
Source identifiers:
476964
Deposit date:
2014-07-27

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