Phase dynamics in a d-dot embedded in a s-wave superconductor

T. Koyama, M. Machida, M. Kato, T. Ishida

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The AC Josephson effect in the interface between a superconducting dot with dx2-y2 symmetry (d-dot) and its surrounding s-wave superconductor is investigated in the presence of an external magnetic field parallel to the interface. We derive the dynamical equations for the phase difference in this d-dot system for two different shapes of d-dot, i.e., square and triangle. The effect of the d-wave symmetry is incorporated in terms of the orientation-dependent Josephson critical current density. We solve numerically the dynamical equations and clarify the dynamics of vortices with half-flux quantum.

Original languageEnglish
Pages (from-to)358-361
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue numberSPEC. ISS.
Publication statusPublished - 2004 Oct
Externally publishedYes


  • AC Josephson effect
  • I-V characteristics
  • d-dot
  • pi-junction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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