Supercurrent in the quantum Hall regime.

Journal Article

A promising route for creating topological states and excitations is to combine superconductivity and the quantum Hall (QH) effect. Despite this potential, signatures of superconductivity in the QH regime remain scarce, and a superconducting current through a QH weak link has been challenging to observe. We demonstrate the existence of a distinct supercurrent mechanism in encapsulated graphene samples contacted by superconducting electrodes, in magnetic fields as high as 2 tesla. The observation of a supercurrent in the QH regime marks an important step in the quest for exotic topological excitations, such as Majorana fermions and parafermions, which may find applications in fault-tolerant quantum computing.

Full Text

Duke Authors

Cited Authors

  • Amet, F; Ke, CT; Borzenets, IV; Wang, J; Watanabe, K; Taniguchi, T; Deacon, RS; Yamamoto, M; Bomze, Y; Tarucha, S; Finkelstein, G

Published Date

  • May 2016

Published In

Volume / Issue

  • 352 / 6288

Start / End Page

  • 966 - 969

PubMed ID

  • 27199424

Electronic International Standard Serial Number (EISSN)

  • 1095-9203

International Standard Serial Number (ISSN)

  • 0036-8075

Digital Object Identifier (DOI)

  • 10.1126/science.aad6203

Language

  • eng