title: Supercurrent in the quantum Hall regime.
abstract: 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.
authors.affiliation: Department of Physics, Duke University, Durham, NC 27708, USA. Department of Physics and Astronomy, Appalachian State University, Boone, NC 28607, USA. ametf@appstate.edu gleb@phy.duke.edu.
authors.forename: F
authors.initials: F
authors.lastname: Amet
authors.affiliation: Department of Physics, Duke University, Durham, NC 27708, USA.
authors.forename: C T
authors.initials: CT
authors.lastname: Ke
authors.affiliation: Department of Applied Physics, University of Tokyo, Bunkyo-ku,Tokyo, 113-8656, Japan.
authors.forename: I V
authors.initials: IV
authors.lastname: Borzenets
authors.affiliation: Department of Physics, Duke University, Durham, NC 27708, USA.
authors.forename: J
authors.initials: J
authors.lastname: Wang
authors.affiliation: Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Watanabe
authors.affiliation: Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Taniguchi
authors.affiliation: Center for Emergent Matter Science (CEMS), RIKEN, Wako-shi, Saitama 351-0198, Japan.
authors.forename: R S
authors.initials: RS
authors.lastname: Deacon
authors.affiliation: Department of Applied Physics, University of Tokyo, Bunkyo-ku,Tokyo, 113-8656, Japan. PRESTO, Japan Science and Technology Agency, Kawaguchi-shi, Saitama 332-0012, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Yamamoto
authors.affiliation: Department of Physics, Duke University, Durham, NC 27708, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Bomze
authors.affiliation: Department of Applied Physics, University of Tokyo, Bunkyo-ku,Tokyo, 113-8656, Japan. Center for Emergent Matter Science (CEMS), RIKEN, Wako-shi, Saitama 351-0198, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Tarucha
authors.affiliation: Department of Physics, Duke University, Durham, NC 27708, USA. ametf@appstate.edu gleb@phy.duke.edu.
authors.forename: G
authors.initials: G
authors.lastname: Finkelstein