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Majorana fermions in s-wave noncentrosymmetric superconductor with Dresselhaus (110) spin-orbit coupling.
- Source :
-
Physical Review B: Condensed Matter & Materials Physics . Feb2013, Vol. 87 Issue 5, p1-5. 5p. - Publication Year :
- 2013
-
Abstract
- The asymmetric spin-orbit interactions play a crucial role in realizing topological phases in a noncentrosym-metric superconductor (NCS). We investigate the edge states and the vortex core states in the .s-wave NCS with Dresselhaus (110) spin-orbit coupling by both numerical and analytical methods. In particular, we demonstrate that there exists a semimetal phase characterized by the flat Andreev bound states in the phase diagram of the s-wave Dresselhaus NCS which supports the emergence of Majorana fermions. The flat dispersion implies a peak in the density of states which has a clear experimental signature in the tunneling conductance measurements and the Majorana fermions proposed here should be experimentally detectable. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10980121
- Volume :
- 87
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Physical Review B: Condensed Matter & Materials Physics
- Publication Type :
- Academic Journal
- Accession number :
- 86709769
- Full Text :
- https://doi.org/10.1103/PhysRevB.87.054501