Magnetoconductance study of substitution effects in Ba2YCu3O7

Azusa Matsuda*, Kouichi Semba

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The effect of various substitutions on the magnetoresistance (MR) of sintered BYCO are reanalyzed based on our recent study of superconducting fluctuation in a BYCO single crystal. This recent study revealed that there is no Zeeman effect on the Maki-Thompson fluctuation conductivity (MT-Zeeman) and its showed the necessity of using the clean limit approximation. The present substitution experiment shows that the clean limit theory neglecting the MT-Zeeman effect describes the results much more consistently than the dirty limit theory with the MT-Zeeman effect did. This analysis also showed that substitution cause MR other than that due to superconducting fluctuation.

Original languageEnglish
Pages (from-to)797-798
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 2
Publication statusPublished - 1991 Dec 1
Externally publishedYes

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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