Experimental phase diagram of zero-bias conductance peaks in superconductor/semiconductor nanowire devices

Jun Chen, Peng Yu, John Stenger, Moïra Hocevar, Diana Car, Sébastien R. Plissard, Erik P.A.M. Bakkers, Tudor D. Stanescu, Sergey M. Frolov

Research output: Contribution to journalArticleScientificpeer-review

113 Citations (Scopus)
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Abstract

Topological superconductivity is an exotic state of matter characterized by spinless p-wave Cooper pairing of electrons and by Majorana zero modes at the edges. The first signature of topological superconductivity is a robust zero-bias peak in tunneling conductance. We perform tunneling experiments on semiconductor nanowires (InSb) coupled to superconductors (NbTiN) and establish the zero-bias peak phase in the space of gate voltage and external magnetic field. Our findings are consistent with calculations for a finite-length topological nanowire and provide means for Majorana manipulation as required for braiding and topological quantum bits.

Original languageEnglish
Article numbere1701476
JournalScience Advances
Volume3
Issue number9
DOIs
Publication statusPublished - 2017

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