Josephson half-quantized vortices in long square π junctions around d-dot

Masahiko Machida, Tomio Koyama, Masaru Kato, Takekazu Ishida

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


We investigate patterns composed of four Josephson half-quantized vortices around a square dot of d-wave high-Tc superconductor (d-dot) embedded in the conventional superconductor matrix by solving the time-dependent Ginzburg-Landau equation considering the Josephson coupling between s and d-wave superconductors at the interface. With increasing the d-dot size, we find that possible patterns of Josephson half-quantized vortices around the d-dot change from 2 diagonal patterns to 6 patterns including non-diagonal ones. In array configurations of d-dots, these 2 and 6 patterns enable to create novel frustrated systems which are useful for computing devices.

Original languageEnglish
Pages (from-to)1566-1571
Number of pages6
JournalPhysica C: Superconductivity and its applications
Issue numberII
Publication statusPublished - 2005
Externally publishedYes
EventProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
Duration: 2004 Nov 232004 Nov 25


  • Josephson half-quantized vortex
  • Josepshson coupling
  • Time-dependent Ginzburg-Landau equation
  • d-Dot

ASJC Scopus subject areas

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


Dive into the research topics of 'Josephson half-quantized vortices in long square π junctions around d-dot'. Together they form a unique fingerprint.

Cite this