Calculation of Josephson Current in a Two-Barrier Tunnel Junction

  • P. P. Shygorin Lesya Ukrainka Eastern European National University
  • A. V. Svidzynskyi Lesya Ukrainka Eastern European National University
  • I. O. Materian Lesya Ukrainka Eastern European National University
Keywords: Josephson effect, tunnel junction, critical current

Abstract

The Josephson current through a two-barrier SISIS tunnel junction has been calculated analytically in the quasiclassical approximation for the microscopic theory of superconductivity. Green’s functions for a SISIS tunnel junction and an expression for the Josephson current through a point contact are obtained. The dependence of the tunnel current on the order parameter phase is determined, and the current dependence on the distance between the barriers is analyzed. The presence of resonance peaks in the Josephson current is demonstrated.

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Published
2018-12-15
How to Cite
Shygorin, P., Svidzynskyi, A., & Materian, I. (2018). Calculation of Josephson Current in a Two-Barrier Tunnel Junction. Ukrainian Journal of Physics, 62(6), 518. https://doi.org/10.15407/ujpe62.06.0518
Section
Solid matter