Correlation between vortex distribution and temperature in YBCO films and YBCO-QMG samples

Hironobu Yamada, Katsunari Moriai, Shinsuke Kanno, Keiji Aizawa, Masanobu Kusunoki, Masashi Mukaida, Shigetoshi Ohshima

研究成果: Contribution to journalConference article

抜粋

We observed vortices with a modified Bitter method by evaporating nickel as the medium of decoration, in film and QMG (which are made with the quench-and-melt-growth method) YBa2Cu3 (YBCO) samples. The temperature range of observation was from 25 K to 90 K, and the external magnetic field was 2 ml. Consequently, we found that the vortex structures of these samples were stable from 25 K to near the critical temperature (∼90 K). The density of vortex was almost three times larger than that estimated from the external magnetic field. This suggests that the vortex motion may be hopping during nickel evaporation.

元の言語英語
ページ(範囲)3121-3124
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
13
発行部数2 III
DOI
出版物ステータス出版済み - 6 1 2003
外部発表Yes
イベント2002 Applied Superconductivity Conference - Houston, TX, 米国
継続期間: 8 4 20028 9 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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