Observation of the flux line lattice and crystal defects in Bi-Sr-Ca-Cu-O single crystals

K. Furusawa, Y. Zhao, N. Chikumoto, K. Kishio, T. Nagatomo, M. Murakami

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

We have observed flux line lattice (FLL) structure in two different types of Bi2Sr2CaCu2O8+δ (Bi-2212) single crystals with different pinning by using a Bitter decoration technique. We have also observed the microstructure and analyzed local chemical composition with wave dispersive spectroscopic analyses. In a low Jc sample, we found two types of line defects, one with Ca-rich and the other with Ca-deficient. These defects extended almost parallel to the growth direction, which caused a distortion in the FLL structure. In contrast, no such defects were observed in the matrix in a high-Jc sample, and a relatively ordered FLL was observed.

Original languageEnglish
Pages (from-to)353-358
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct 1
EventProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
Duration: 2002 Nov 112002 Nov 13

Keywords

  • Bi-2212
  • Bitter decoration technique
  • Line defect
  • Magneto-optical imaging

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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