Vortex state of nano-scaled superconducting complex structures (d-dot)

Masayuki Ako, Masahiko Machida, Tomio Koyama, Takekazu Ishida, Masaru Kato

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Using the finite element method we have solved the Ginzburg-Landau equation for several nano-scaled composite structures with s- and d-wave superconductors, which is called d-dot, and we have obtained the superconducting state and the magnetic field distribution under zero magnetic field. For the right triangle and the square shaped d-dot, the magnetic field is induced broadly along the hypotenuses, which is different from the case of the corner junction and the square d-dot. And we show possibility of the manipulation of the magnetic flux structure by the external field or the electric current.

Original languageEnglish
Pages (from-to)544-547
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue numberSPEC. ISS.
Publication statusPublished - 2004 Oct 1


  • Ginzburg-Landau theory
  • Half flux quantum vortex
  • High-T superconductors
  • Nano-scale superconductors

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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