Supercurrent Flow in Multiterminal Graphene Josephson Junctions.

Published

Journal Article

We investigate the electronic properties of ballistic planar Josephson junctions with multiple superconducting terminals. Our devices consist of monolayer graphene encapsulated in boron nitride with molybdenum-rhenium contacts. Resistance measurements yield multiple resonant features, which are attributed to supercurrent flow among adjacent and nonadjacent Josephson junctions. In particular, we find that superconducting and dissipative currents coexist within the same region of graphene. We show that the presence of dissipative currents primarily results in electron heating and estimate the associated temperature rise. We find that the electrons in encapsulated graphene are efficiently cooled through the electron-phonon coupling.

Full Text

Duke Authors

Cited Authors

  • Draelos, AW; Wei, M-T; Seredinski, A; Li, H; Mehta, Y; Watanabe, K; Taniguchi, T; Borzenets, IV; Amet, F; Finkelstein, G

Published Date

  • February 2019

Published In

Volume / Issue

  • 19 / 2

Start / End Page

  • 1039 - 1043

PubMed ID

  • 30620606

Pubmed Central ID

  • 30620606

Electronic International Standard Serial Number (EISSN)

  • 1530-6992

International Standard Serial Number (ISSN)

  • 1530-6984

Digital Object Identifier (DOI)

  • 10.1021/acs.nanolett.8b04330

Language

  • eng