Diameter dependent superconductivity in individual WS2 nanotubes

ORAL

Abstract

Transition metal dichalcogenides nanotube is a fascinating platform for the research of superconductivity due to its unique dimensionality and geometry. Especially, novel chiral superconducting transport originating from the nanotube chirality has been discovered recently [F. Qin et al., Nature Commun. 8, 14465 (2017)]. Here we report the diameter dependent superconductivity in individual WS2 nanotubes. The superconductivity is realized by electrochemical doping with ionic gate, in which the diameter of nanotube is estimated from the periodic oscillating magnetoresistance, known as Little Parks effect. The critical temperature of superconductivity displays a systematic behavior as a function of the diameter. The present results might offer the crucial information to understand the microscopic mechanism of superconductivity in individual nanotube.

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Presenters

  • Feng Qin

    The University of Tokyo, University of Tokyo

Authors

  • Feng Qin

    The University of Tokyo, University of Tokyo

  • Toshiya Ideue

    The University of Tokyo, the University of Tokyo, the Univ. of Tokyo, Univ. of Tokyo

  • Wu Shi

    Lawrence Berkeley National Laboratory, Physics, University of California, Berkeley, Univ of California - Berkeley

  • Xiao-Xiao Zhang

    The University of Tokyo, Univ of Tokyo

  • Masaro Yoshida

    RIKEN, RIKEN Center for Emergent Matter Science, RIKEN CEMS

  • Alla Zak

    Holon Institute of Technology, Holen Institute of Technology

  • Reshef Tenne

    Materials and Interfaces Department, Weizmann Institute of Science, Weizmann Institute of Science

  • Tomoka Kikitsu

    RIKEN Center for Emergent Matter Science

  • Daishi Inoue

    RIKEN Center for Emergent Matter Science

  • Daisuke Hashizume

    RIKEN Center for Emergent Matter Science

  • Yoshihiro Iwasa

    Univ of Tokyo, Department of Applied Physics, The University of Tokyo, The University of Tokyo, University of Tokyo, The Univ. of Tokyo, the University of Tokyo, the Univ. of Tokyo, Univ. of Tokyo