Simulation of logic gate using d-dot's

Susumu Nakajima, Masaru Kato, Tomio Koyama, Masahiko Machida, Takekazu Ishida, F. Nori

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A d-dot is a superconducting composite structure of d- and s-wave superconductors, which shows spontaneous half-quantized magnetic fluxes. We developed numerical method to analyze the time development of these spontaneous magnetic fluxes, based on the two-components Ginzburg-Landau equation. The d-dot can be used as an element of quantum dot cellular automata logic gates. We show a simulation, which demonstrates the transfer of information between two d-dot's.

Original languageEnglish
Pages (from-to)769-772
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue number7-10
Publication statusPublished - 2008 Apr 1
Externally publishedYes


  • Dwarves superconductivity
  • Ginzburg-Landau equation
  • Spontaneous magnetic flux

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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