Supercurrent Flow in Multiterminal Graphene Josephson Junctions

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

1 Scopus Citations
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Author(s)

  • Anne W. Draelos
  • Ming-Tso Wei
  • Andrew Seredinski
  • Hengming Li
  • Yash Mehta
  • Kenji Watanabe
  • Takashi Taniguchi
  • François Amet
  • Gleb Finkelstein

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)1039-1043
Journal / PublicationNano Letters
Volume19
Issue number2
Publication statusPublished - 13 Feb 2019

Abstract

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.

Research Area(s)

  • ballistic Josephson junctions, electronâphonon coupling, Graphene, multiterminal current flow, superconductivity

Citation Format(s)

Supercurrent Flow in Multiterminal Graphene Josephson Junctions. / Draelos, Anne W.; Wei, Ming-Tso; Seredinski, Andrew; Li, Hengming; Mehta, Yash; Watanabe, Kenji; Taniguchi, Takashi; Borzenets, Ivan V.; Amet, François; Finkelstein, Gleb.

In: Nano Letters, Vol. 19, No. 2, 13.02.2019, p. 1039-1043.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review