Pressure controlled transition into a self-induced topological superconducting surface state
KAUST DepartmentComputational Physics and Materials Science (CPMS)
KAUST Supercomputing Laboratory (KSL)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Online Publication Date2014-02-07
Print Publication Date2015-05
Permanent link to this recordhttp://hdl.handle.net/10754/325422
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AbstractAb-initio calculations show a pressure induced trivial-nontrivial-trivial topological phase transition in the normal state of 1T-TiSe2. The pressure range in which the nontrivial phase emerges overlaps with that of the superconducting ground state. Thus, topological superconductivity can be induced in protected surface states by the proximity effect of superconducting bulk states. This kind of self-induced topological surface superconductivity is promising for a realization of Majorana fermions due to the absence of lattice and chemical potential mismatches. For appropriate electron doping, the formation of the topological superconducting surface state in 1T-TiSe 2 becomes accessible to experiments as it can be controlled by pressure.
CitationZhu Z, Cheng Y, Schwingenschlögl U (2014) Pressure controlled transition into a self-induced topological superconducting surface state. Sci Rep 4. doi:10.1038/srep04025.
PubMed Central IDPMC3916898
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