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高Tc超导氧化物YBa2Cu3O7-x的比热研究
The Specific Heat of Superconductive Oxide YBa2Cu3O7-x with high Transition Temperature T（?）
【摘要】 作者采用连续法测量了Y-Ba-Cu-氧化物块状材料在80-120K温区内的比热,在转变温度92.7K附近观察到明显的比热反常现象。比热跃迁△c与转变温度T_c的比值△c/T_c为:40mJ/mol·K~2,比热跃迁△o与比热c的比值△c/c为3％左右。上述测量结果与国外同行的研究成果基本一致。
【Abstract】 The author measured the specific heat of Y-Ba-Cu-Oxide with the conti-nuous method at temperature range 80-120 K. A clear anomalous phenomenon of specific heat has beeh observed near transition temperature 92. 7 K. The ratio o/Tc of the specific-heat transition c to the transition temperature Tc is 40 mJ/mol·K~2. The ratio c/c of the specific-heat transition c to the specific heat c is about 3%. These results are in consistent with experimental results obtained by other work.
【关键词】 超导氧化物；
比热反常；
比热跃迁；
转变温度；
连续法；
【Key words】 Superconductive oxide； Anomaly of specific heat； Transition of speciflc heat； Transition temperature； Continuous method；
【Key words】 Superconductive oxide； Anomaly of specific heat； Transition of speciflc heat； Transition temperature； Continuous method；
- 【文献出处】 同济大学学报 ,Journal of Tongji University , 编辑部邮箱 ,1989年04期
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