A d-dot as an element of superconducting devices

Masaru Kato, Hisataka Suematsu, Masaki Hirayama, Tomio Koyama, Masahiko Machida, Takekazu Ishida

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A d-dot is the composite structure of a d-wave superconductor and an s-wave superconductor. Spontaneous half-quantum magnetic fluxes appear around the corners of the d-wave superconducting region. Because of the broken time-reversal symmetry of this state, there are always two degenerate states. We show some basic properties of the d-dot and discuss the potential ability of using the d-dot as a two-state device.

Original languageEnglish
Pages (from-to)1074-1079
Number of pages6
JournalJournal of the Korean Physical Society
Issue number5 I
Publication statusPublished - 2006 May 1


  • Ginzburg-Landau equation
  • Half-flux quantum
  • High-Tc superconductors

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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