Helical Dirac-Majorana interferometer in a superconductor/topological insulator sandwich structure

Chaoxing Liu, Björn Trauzettel

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

In the heterostructure composed of a topological insulator sandwiched by two s-wave superconductors, the time reversal invariant topological superconducting phase, possessing helical Majorana edge modes, is found to exist when the two s-wave superconductors form a Josephson junction with a π phase shift. Based on such a heterostructure, a helical Dirac-Majorana interferometer is proposed to directly measure a unique transport signature of the helical Majorana modes. Furthermore, we envision how our proposal can be realized on the basis of existing materials such as Bi2Se3 or Bi 2Te3 thin films.

Original languageEnglish (US)
Article number220510
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume83
Issue number22
DOIs
StatePublished - Jun 21 2011

Fingerprint

Sandwich structures
sandwich structures
Interferometers
Superconducting materials
Heterojunctions
interferometers
insulators
Phase shift
Josephson junctions
proposals
phase shift
signatures
Thin films
thin films

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

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Helical Dirac-Majorana interferometer in a superconductor/topological insulator sandwich structure. / Liu, Chaoxing; Trauzettel, Björn.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 83, No. 22, 220510, 21.06.2011.

Research output: Contribution to journalArticle

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