| Sr2RuO4超导转变温度附近c方向磁阻行为研究 |
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| 引用本文： | 刘亚静,雒建林,陈兆甲,王万录.Sr2RuO4超导转变温度附近c方向磁阻行为研究[J].低温物理学报,2004,26(2):101-106. |
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| 作者姓名： | 刘亚静 雒建林 陈兆甲 王万录 |
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| 作者单位： | 重庆大学应用物理系,重庆,400044;中国科学院物理研究所,北京,100080;中国科学院物理研究所,北京,100080;重庆大学应用物理系,重庆,400044 |
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| 摘 要： | 测量了Sr2RuO4正常态和超导转变温度附近(T=1.5K,4.0K,6K)c方向的磁阻,通过对正常态磁阻分析获得了Sr2RuO4在温度4K和6K下的平均自由程.通过超导涨落分析获得了Sr2RuO4的超导特性参数ξab(0)和ξc(0).
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| 关 键 词： | 超导涨落 磁阻 相干 |
| 修稿时间： | 2003年10月15 |
MAGNETORESISTANCE ANALYSIS OF Sr2RuO4 NEAR SUPERCONDUCTING TRANSITION TEMPERATURE |
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| LIU YA-JING{,} LUO JIAN-LIN CHEN ZHAO-JIA WANG WAN-LU.MAGNETORESISTANCE ANALYSIS OF Sr2RuO4 NEAR SUPERCONDUCTING TRANSITION TEMPERATURE[J].Chinese Journal of Low Temperature Physics,2004,26(2):101-106. |
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| Authors: | LIU YA-JING{ } LUO JIAN-LIN CHEN ZHAO-JIA WANG WAN-LU |
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| Institution: | LIU YA-JING+{1,2} LUO JIAN-LIN+2 CHEN ZHAO-JIA+2 WANG WAN-LU+1 +1Department of Applied Physics,Chongqing University,Chongqing 400044 +2Institute of Physics,Chinese Academy of Sciences,Beijing 100080 |
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| Abstract: | We report a detailed study of the c-axis magnetoresistance near superconducting transition temperature in Sr-2RuO-4, the layered perovskite superconductor which does not contain copper. By the analysis of the normal state magnetoresistance we have obtained the in-plane mean free path. A large positive magnetoresistance near T-c has been observed, which is originated from superconducting fluctuations. The fluctuation-enhanced magnetoconductivity very close to T-c shows well agreement with Aslamasov-Larkin(AL) prediction for a 2-D superconductor, and the coherence lengths of Sr-2RuO-4 have been deduced from fluctuation magnetoresistance analysis at 1.5K. |
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| Keywords: | superconducting fluctuation magnetoresistance |
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