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.

–

Authors

  • Gang Liu

  • Yong Zhang

  • Chun Ning Lau

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