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首页> 外文期刊>Physica, C. Superconductivity and its applications >THE SUPPRESSION OF SUPERCONDUCTIVITY IN THE GD1-XPRXBA2-YSRYCU3O7-DELTA SYSTEM
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THE SUPPRESSION OF SUPERCONDUCTIVITY IN THE GD1-XPRXBA2-YSRYCU3O7-DELTA SYSTEM

机译：GD1-XPRXBA2-YSRYCU3O7-DELTA系统中超导性的抑制

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The variations of superconductivity in Gd1-xPrxBa2-ySryCu3O7-delta have been studied. The system keeps ''123'' structure through the solid solution ranges of 0 less than or equal to x less than or equal to 1 and 0 less than or equal to y less than or equal to 1. The critical Pr concentration for the quenching of superconductivity is about 0.45 when y=O, and is increased to about 0.6 when y=1.0. In the series Gd0.55Pr0.45Ba2-ySryCu3O7-delta, it is observed that superconductivity reappears when y greater than or equal to 0.5. These results further indicate that there is an ''ion-size effect'' on T-c at the Ba-site, which was discussed in terms of the Pr-O covalent bonding effect. [References: 21]
机译：研究了Gd1-xPrxBa2-ySryCu3O7-delta中超导的变化。该系统在固溶范围为0小于或等于x小于或等于1和0小于或等于y小于或等于1的固溶范围内保持“ 123”结构。淬灭的临界Pr浓度当y ＝ 0时，超导系数约为0.45，而当y ＝ 1.0时，超导系数约为0.6。在系列Gd0.55Pr0.45Ba2-ySryCu3O7-delta中，可以观察到，当y大于或等于0.5时，会重新出现超导性。这些结果进一步表明，在Ba位点的T-c上存在“离子尺寸效应”，这是根据Pr-O共价键合效应进行了讨论。 [参考：21]

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