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| Pr替代YPBCO超导单晶的峰效应研究 | |
| 引用本文： | 金刚,秦正平,曹世勋,张金仓,姚忻.Pr替代YPBCO超导单晶的峰效应研究[J].低温与超导,2009,37(11). |
| 作者姓名： | 金刚 秦正平 曹世勋 张金仓 姚忻 |
| 作者单位： | 1. 周口师范学院物理系,周口,466001;上海交通大学物理系,上海,200030 2. 上海大学物理系,上海,200444 3. 上海交通大学物理系,上海,200030 |
| 基金项目： | 国家自然科学基金，上海市科委基础研究重大重点项目，河南省教育厅自然科学研究计划项目 |
| 摘 要： | 采用TSSG法在1 atm氧气氛下生长出Y1-xPrxBa2Cu3O7(x=0.07215)超导单晶样品;测量了该单晶样品在不同温度下的磁特性;根据Bean临界态模型,计算出不同温度下的临界电流密度Jc对磁场H的依赖关系;在对该样品的直流磁化研究中观测到了峰效应。随着温度的降低,样品的临界电流密度明显增加。 |
| 关 键 词： | YPBCO单晶 峰效应 Pr替代 临界电流密度 |
Study of peak effect in Pr-doping YBCO single crystals superconductor |
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| Jin Gang,Qin Zhengping,Cao Shixun,Zhang Jincang,Yao Xin.Study of peak effect in Pr-doping YBCO single crystals superconductor[J].Cryogenics and Superconductivity,2009,37(11). | |
| Authors: | Jin Gang Qin Zhengping Cao Shixun Zhang Jincang Yao Xin |
| Institution: | Jin Gang1,3,Qin Zhengping2,Cao Shixun2,Zhang Jincang2,Yao Xin3,(1.Department of Physics,Zhoukou Normal University,Zhoukou 466001,China,(2.Department of Physics,Shanghai University,Shanghai 200444,3.Department of Physics,Shanghai Jiaotong University,Shanghai 200030,China) |
| Abstract: | The peak effect was studied by the magnetization measurement for superconducting Y1-xPrxBa2Cu3O7(x=0.07215) single crystals sample.The dependence of critical current density on magnetic applied field is obtained using Bean critical state model.The results show that there exists an evident peak effect at low temperature for superconducting Y1-xPrxBa2Cu3O7(x=0.07215) single crystals.With decreasing temperature,the peak effect is more evident than higher temperature and the corresponding critical current densi... |
| Keywords: | YPBCO single crystals Peak effect Pr Substitution Critical current density |
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