溶融法によるYBa_2Cu_3O_yの磁化応答 Magnetic Response of a Melt-Processed YBa_2Cu_3O_y

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We measured the magnetization curve of a melt-processed YBa<SUB>2</SUB>Cu<SUB>3</SUB>O<SUB>y</SUB> in the temperature region 20-60 K. Measurements were carried out by the use of a SQUID, where the applied field ranges 0-1 T. The observed curves were analyzed in the framework of the Kim-Anderson model for critical current density, where the critical current density Jc is expressed as a function of the localized flux density Bi in the sample, Jc=k/(BO+|Bi|). Here k designates the pinning force and B0 is a temperaturedependent parameter. By taking into consideration the demagnetization effect, the experimental results were reproduced very well, suggesting that the Kim-Anderson model is quite useful for the study of the magnetic response of the specimen. Some discussion on the temperature-dependent parameters involved in the model are given.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 43(2), 200-205, 1996-02-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002011325
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    3926719
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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