Transport properties in Ca and Zn substituted NdBa2Cu 3O7-δ single crystals

M. Tamaki, T. Machi, I. Kato, N. Koshizuka, M. Murakami, S. Arai

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

We have measured the transport properties in Ca and Zn substituted NdBa2Cu3O7-δ (Nd123) single crystals grown by the travelling solvent floating zone (TSFZ) method. The normal state resistivity decreased with Ca doping and the electronic state changed into an over-doped state, which was revealed by the fact that the temperature dependence of resistivity turned into super-linear from the T-linear behavior. In contrast, a normal state resistivity increased with Zn doping presumably due to the fact that Zn acted as a scattering center. It was found that a combined addition of Ca and Zn was effective in increasing the irreversibility field and the critical current density simultaneously through the optimization of carrier concentration and pinning performance.

本文言語English
ページ(範囲)157-160
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
392-396
PART 1
DOI
出版ステータスPublished - 2003 10月
外部発表はい
イベントProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
継続期間: 2002 11月 112002 11月 13

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
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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