Correlated Pinning Behavior in ErBa2Cu3Oy Films with Columnar Defects
Correlated Pinning Behavior in ErBa2Cu3Oy Films with Columnar Defects
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具有柱状缺陷的 ErBa2Cu3Oy 薄膜中的相关钉扎行为
DOI：
10.1143/apex.2.113002
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
S. Okayasu
中科院分区：
文献类型：
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作者：
M. Namba;S. Awaji;Kazuo Watanabe;Hideki Kai;M. Mukaida;S. Okayasu
本研究通过重离子辐照在REBa2Cu3Oy （RE：稀土元素，RE123）涂层导体中产生c轴相关钉钉中心，从而增加B∥c轴的临界电流密度（Jc），并测量了随后的Jc变化。在Bφ = 0.1和1 T的匹配磁场下，当外加磁场高达13 T时，发现柱状缺陷导致Jc的角依赖性达到峰值。我们发现，即使在高于Bφ 130倍的外加磁场下，柱状缺陷也导致Jc的改善。
In this study, c-axis-correlated pinning centers, which are known to increase the critical current density (Jc) for B∥c-axis, were produced by heavy-ion-irradiation in REBa2Cu3Oy (RE: rare earth element, RE123) coated conductors, and the subsequent changes in Jc were measured. A peak in the angular dependence of Jc induced by the defects was observed for applied magnetic fields of up to 13 T for Er123 films with matching fields of Bφ = 0.1 and 1 T. We found that the columnar defects led to improvements in Jc even under applied magnetic fields more than 130 times higher than Bφ.
不可逆场附近的 c 轴相关钉扎行为
DOI：
--
发表时间：
2007
期刊：
Appl. Phys. Lett. 90
影响因子：
--
作者：
S. Awaji;M. Miura;他5名
通讯作者：
他5名