Supercurrent in Single Wall Carbon Nanotube Josephson Junctions

ORAL

Abstract

We investigate transport in highly transparent single-wall carbon nanotube Josephson Junctions. Gate tunable supercurrent, multiple Andreev reflections and hysteresis current-voltage characteristics are observed, corresponding to on- and off-resonance transmission of charges via the nanotube's quantized energy levels. In the talk we will discuss the dependence of supercurrent on temperature, source-drain separation and gate voltage, and compare with various theoretical models.

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Authors

  • Gang Liu

  • Yong Zhang

  • Chun Ning Lau

    • Physics Department, University of California, Riverside
    • Department of Physics and Astronomy, University of California at Riverside