Effect of nonsuperconducting secondary inclusions on the magnetization relaxation in melt-processed RBa2Cu3O7-δ (R = Nd and Yb) bulk superconductors at high temperatures

T. Mochida, N. Chikumoto, M. Murakami

研究成果: Article査読

10 被引用数 (Scopus)

抄録

We have studied the effect of nonsuperconducting inclusions on the magnetization relaxation in melt-processed RBa2Cu3O7-δ (R=Nd and Yb) bulk superconductor in a high - temperature region (77≤T ≤90 K). It is found that nonsuperconducting inclusions are mainly effective in reducing the normalized relaxation rate S (≡ -d ln M/d ln t) at low fields [birr(≡ μ0Ha/Birr)≲0.1] and at high fields (birr≳0.4). A suppression in S is observed in an intermediate field region (0.1≲birr≲0.4) for the samples exhibiting secondary peak effect, suggesting a relation between the peak and the suppression.

本文言語English
論文番号064518
ページ(範囲)645181-645187
ページ数7
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
64
6
出版ステータスPublished - 2001 8 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Effect of nonsuperconducting secondary inclusions on the magnetization relaxation in melt-processed RBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> (R = Nd and Yb) bulk superconductors at high temperatures」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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