Temperature, current and field dependencies of activation energy in Tl2Ba2CaCu2O8 superconducting thin film
文献类型：期刊论文
| 作者 | Xu, XN ; Sun, AM ; Aruna, SA ; Ding, SY ; Jin, X ; Yao, XX ; Yan, SL ; Wen, HH |
| 刊名 | CRYOGENICS
 |
| 出版日期 | 1998 |
| 卷号 | 38期号:10页码:971 |
| 关键词 | FLUX-CREEP YBA2CU4O8 FILMS CURRENT-DENSITY SINGLE-CRYSTAL RELAXATION |
| ISSN号 | 0011-2275 |
| 通讯作者 | Xu, XN (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China. |
| 中文摘要 | The dynamic magnetic hysteresis loops m(T, B-a, (B) over dot(a)) of an epitaxial Tl2Ba2CaCu2O8 superconducting thin film are measured at various field sweep rates (B) over dot(a) and at temperatures ranging from (1/2)T-c to (4/5)T-c. The magnetization current densities J(m)(T, B-a, (B) over dot(a)) are obtained using the Bean model approximation. Followed by the determination of the maximum creep velocity for fluxons or flux bundles, the optimum temperature, current and field dependent functions of the effective activation energy, g(T), F(J(m)) and B-a(gamma) are uniquely determined for a range of temperatures and applied fields. The inverse function of F(J(m)), i.e. J(m)(c)(T, B-a, (B) over dot(a)), is in excellent agreement with the experimental results of J(m)(T, B-a, (B) over dot(a)). Hence in a range of temperatures and applied fields, the optimum temperature, current and field dependencies of activation energy can be ascertained without a priori assumption of their explicit forms. (C) 1998 Elsevier Science Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/44803]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xu, XN,Sun, AM,Aruna, SA,et al. Temperature, current and field dependencies of activation energy in Tl2Ba2CaCu2O8 superconducting thin film[J]. CRYOGENICS,1998,38(10):971. |
| APA | Xu, XN.,Sun, AM.,Aruna, SA.,Ding, SY.,Jin, X.,...&Wen, HH.(1998).Temperature, current and field dependencies of activation energy in Tl2Ba2CaCu2O8 superconducting thin film.CRYOGENICS,38(10),971. |
| MLA | Xu, XN,et al."Temperature, current and field dependencies of activation energy in Tl2Ba2CaCu2O8 superconducting thin film".CRYOGENICS 38.10(1998):971. |
入库方式： OAI收割
来源：物理研究所
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