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首页> 外文期刊>Physica, C. Superconductivity and its applications >Effects of Sr substitution on the magnetic-field irreversibility in superconductive Cu(Ba1-ySry)(2)YbCu2O6+z
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Effects of Sr substitution on the magnetic-field irreversibility in superconductive Cu(Ba1-ySry)(2)YbCu2O6+z

机译:Sr置换对超导Cu(Ba1-ySry)(2)YbCu2O6 + z中磁场不可逆性的影响

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摘要

The effects of the Sr-for-Ba substitution on the H-irr characteristics of the Cu(Ba1-ySry)(2)YbCu2O6+z (Cu-1212) system is established at two different oxygen-content levels in the range of 0.0 less than or equal to y less than or equal to 0.4. In the fully oxygenated sample series, an optimum was seen at y = 0.2 so that the H-irr line of the present Cu(Ba0.8Sr0.2)(2)YbCu2O6.96 sample clearly exceeds that of the CuBa2YCu2O6.92 compound. For the oxygen-deficient sample series, the H-irr characteristics was depressed with increasing Sr content even though the unit cell decreased. Thus, the H-irr characteristics is mostly controlled by other factors than the thickness of the nonsuperconductive blocking block. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 13]
机译:在0.0范围内的两个不同氧含量水平下,建立了Sr-for-Ba替代对Cu(Ba1-ySry)(2)YbCu2O6 + z(Cu-1212)体系的H-irr特性的影响小于或等于y小于或等于0.4。在完全氧化的样品系列中,在y = 0.2处观察到最佳值,因此当前Cu(Ba0.8Sr0.2)(2)YbCu2O6.96样品的H-irr线明显超过CuBa2YCu2O6.92化合物的H-irr线。对于缺氧样品系列,即使晶胞减少,H-irr特性也会随着Sr含量的增加而降低。因此,除了非超导阻挡块的厚度以外,H-irr特性主要由其他因素控制。 (C)2000 Elsevier Science B.V.保留所有权利。 [参考:13]

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