Applied strain effect on superconducting properties for detwinned (Y, Gd)BCO coated conductors

Takumi Suzuki, Satoshi Awaji, Hidetoshi Oguro, Kazuo Watanabe

研究成果: Contribution to journalArticle査読

5 被引用数 (Scopus)

抄録

We succeeded in the complete detwin of (Y, Gd)BCO coated conductors using a newly developed in-situ tensile apparatus at high temperature. The intensities of (020) and (200) peaks in a longitudinal and a transverse directions of the tape measured by XRD were similar to each other for usual (Y, Gd)BCO coated conductors before annealing. However, the (200) peak disappears for the longitudinal direction after annealing under the tensile stress. It means that the coated conductors are detwinned by annealing under the tensile stress. We found that Tc linearly decreases with increasing strain for the B-domain (b-axis). This behavior is similar with a uniaxial-pressure effect in (Y, Gd) BCO single crystals. However, the strain dependence of Tc for the A-domain (a-axis) behaves as a power-law function, whereas the uniaxial-pressure dependency of Tc for the a-axis is reported to be linear. In addition, the strain dependencies of Jc are similar with those of Tc.

本文言語英語
論文番号6975146
ジャーナルIEEE Transactions on Applied Superconductivity
25
3
DOI
出版ステータス出版済み - 6 1 2015
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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