| 层状超导体Cu_(0.03)TaS_2中E～j特性的涡旋玻璃模型标度 |
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| 引用本文： | 鲁俊超,张丽英,吕刚,朱相德,张裕恒.层状超导体Cu_(0.03)TaS_2中E～j特性的涡旋玻璃模型标度[J].河南师范大学学报(自然科学版),2014(2):48-51. |
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| 作者姓名： | 鲁俊超 张丽英 吕刚 朱相德 张裕恒 |
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| 作者单位： | 河南工业大学理学院;中国科学院合肥物质科学研究院强磁场科学中心; |
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| 基金项目： | 河南省教育厅自然科学基金(3B140951);河南工业大学基金(11JCYJ15);河南工业大学高层次人次基金(2011BS030) |
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| 摘 要： | 在高温超导体中,涡旋玻璃理论可以很好地描述其中的涡旋玻璃相.选择合适的参数,就可以通过标度方程将磁场下混合态的E~j曲线标度到E+和E-两个分支上.但是,这个二阶相变模型对于层状超导体Cu0.03TaS2却不适用,原因为该体系中的弱钉扎,这可以从磁滞回线上的"峰效应"得到证明.
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| 关 键 词： | 涡旋玻璃 相变 E～j特性 标度 |
Scaling of E～j Characteristics by Vortex Glass Model in Layerd Superconductor Cu_(0.03)TaS_2 |
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| LU Junchao;ZHANG Liying;LYU Gang;ZHU Xiangde;ZHANG Yuheng.Scaling of E～j Characteristics by Vortex Glass Model in Layerd Superconductor Cu_(0.03)TaS_2[J].Journal of Henan Normal University(Natural Science),2014(2):48-51. |
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| Authors: | LU Junchao;ZHANG Liying;LYU Gang;ZHU Xiangde;ZHANG Yuheng |
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| Institution: | LU Junchao;ZHANG Liying;LYU Gang;ZHU Xiangde;ZHANG Yuheng;College of Science,Henan University of Technology;High Magnetic Field Laboratory,Chinese Academy of Sciences and University of Science and Technology of China; |
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| Abstract: | The vortex-glass theory has been successfully employed to describe the vortex phase state of high TC superconductors.Its validity can be examined by scaling the current-voltage isotherms with appropriate exponents and universal scaling function.However,this second order phase transition model is not applicable for layered superconductor Cu0.03TaS2 due to its weak pinning,which could be proved by the peak effect in the M-Hloops. |
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| Keywords: | vortex glass phase transition E～j characteristics scaling |
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