Return current of dc SQUID based on tunnel Josephson junctions with unconventional current-phase relation

ASKERBEYLİ İ., Askerbeyli R.

LOW TEMPERATURE PHYSICS, vol.47, no.5, pp.392-395, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 5
  • Publication Date: 2021
  • Doi Number: 10.1063/10.0004232
  • Journal Name: LOW TEMPERATURE PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC
  • Page Numbers: pp.392-395
  • Keywords: dc SQUID, current-phase relation, return current, anharmonic and fractional terms, DYNAMICS
  • Ankara University Affiliated: Yes

Abstract

We carried out the analysis of the return current of dc SQUID based on tunnel Josephson junction with unconventional current-phase relation. We analyzed two cases of current-phase relation with additional terms to the first harmonic sin phi: a case of the second harmonic sin 2 phi and the case of the fractional term sin (phi/2). It is shown that the changing of the return current of dc SQUID on junctions with unconventional current-phase relation is determined by the amplitude of the second term in current-phase relation, geometrical inductance, and external magnetic field.