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, Masato Murakami

Research output: Contribution to journalArticle

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
Externally publishedYes

    Fingerprint

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this