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烧结YBCO高T_c超导样品的微波表面电阻双转变

DOUBLE TRANSITIONS OF THE MICROWAVE SURFACE RESISTANCE ABOUT SINTERED YBCO HIGH T_c SAMPLE

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【作者】刘东；杨涛；陈新航；孙自强；王家素；王素玉；唐启雪；李建平；汪京荣；吴晓祖；

【Author】 Liu Dong, Yang Tao, Chen Xinhang, Sun Ziqiang (Department of Physics, Northwest University, Xian)Wang Jiasu, Wang Suyu, Tang Qixue (Department of Applied Physics,Southwest Jiaotong University,Chengdu)Li Jianping, Wang Jingrong, Wu Xiaozu (Northwest Research Institute of Non-ferrous, Baoji)

【机构】西北大学物理系；西南交通大学应用物理系；西北有色金属研究院；西北有色金属研究院西安；西安；成都；宝鸡；宝鸡；

【摘要】在YBCO高T_C超导样品的微波损耗测量中观察到其微波表面电阻R_S（T）曲线存在双转变现象。参照Nb₃Sn低T_C超导材料的类似实验对本实验结果进行了初步分析,认为超导材料的高频电磁特性测盈可以成为一种更灵敏反映材料特性的测量手段。更多还原

【Abstract】 The double transitions in Rs(T) curve about microwave loss of the YBCO high Tc sample have been observed,Referred to a similar experiment of Nb3 Sn low Tc superconductor, a preliminary analysis of this experimental result has been done. It has been proposed that the measurement of high frequency electromagnetic characteristic of superconductor may become more sensitive than other measuring.更多还原

【关键词】 YBCO； T_c；表面电阻；损耗测量；阶梯结构；高频电磁；高温超导；临界电流密度；特性测量；低温恒温器；

【基金】陕西省科委;国家超导中心部分资助

【文献出处】低温与超导 ,Cryogenics and Superconductivity , 编辑部邮箱 ,1991年03期

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