Magnetic and magneto-optic characterization of the ternary compounds (Nd0.33Eu0.33Gd0.33)Ba2Cu3 Oy,(Sm0.33Eu0.33Gd0.33)Ba2CU 3Oy and (Nd0.33Sm0.33Gd0.33) Ba2Cu3Oy

A. Das, M. R. Koblischka, N. Sakai, M. Muralidhar, S. Koishikawa, T. Fukuzaki, S. J. Seo, M. Murakami

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We have investigated the ternary compound superconductors (Nd0.33Eu0.33Gd0.33)Ba2Cu 3Oy (NEG), (Sm0.33Eu0.33Gd0.33)Ba2Cu 3Oy (SEG) and (Nd0.33Sm0.33Gd0.33)Ba2Cu 3Oy (NSG) melt-processed in a reduced oxygen atmosphere with magnetic and magneto-optical measurements. Zero-field-cooled and field-cooled measurements were carried out in order to correlate the flux distributions with microstructure analysis. It was found that the critical state is well established in all three samples. The Jc(B) curves derived from magnetization loops exhibit a strongly developed secondary peak effect. Scaling of normalized Jc as a function of reduced field, b = B/Bpk, was performed. At 77 K and above, it was found that NSG and SEG samples have similar properties, which are different from those of the NEG sample. The current-carrying length scale was determined from the reverse leg of the magnetization hysteresis loops and was compared with the actual dimensions of the sample.

本文言語English
ページ(範囲)1283-1291
ページ数9
ジャーナルSuperconductor Science and Technology
11
11
DOI
出版ステータスPublished - 1998 11 1
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

フィンガープリント

「Magnetic and magneto-optic characterization of the ternary compounds (Nd<sub>0.33</sub>Eu<sub>0.33</sub>Gd<sub>0.33</sub>)Ba<sub>2</sub>Cu<sub>3</sub> O<sub>y</sub>,(Sm<sub>0.33</sub>Eu<sub>0.33</sub>Gd<sub>0.33</sub>)Ba<sub>2</sub>CU <sub>3</sub>O<sub>y</sub> and (Nd<sub>0.33</sub>Sm<sub>0.33</sub>Gd<sub>0.33</sub>) Ba<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub>」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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