Temperature dependence of the critical current determined from magnetic relaxation in HgBa2Ca2Cu3O8+delta
文献类型：期刊论文
| 作者 | Yu, Y ; Zeng, ZY ; Xu, XN ; Shao, HM ; Qin, MJ ; Jin, X ; Yao, XX ; Rong, XS ; Ying, B ; Zhao, ZX |
| 刊名 | PHYSICA C
 |
| 出版日期 | 1998 |
| 卷号 | 298期号:3-4页码:240 |
| 关键词 | BA-CU-O HIGH-TC SUPERCONDUCTORS COLLECTIVE FLUX-CREEP CURRENT-DENSITY SINGLE-CRYSTAL YBA2CU3O7 SUPERCONDUCTORS ACTIVATION-ENERGIES FILMS |
| ISSN号 | 0921-4534 |
| 通讯作者 | Yu, Y (reprint author), Nanjing Univ, Dept Phys, POB 2020, Nanjing 210093, Peoples R China. |
| 中文摘要 | Based on the U(j) relation of the collective pinning theory, U(j) = [U-c/mu][(j(c)/j)(mu) - 1], we introduce a direct method to derive the temperature dependence of the characteristic exponent mu, the collective pinning energy U-c and the critical current density j(c) from magnetic relaxation measurement. By utilizing a linear relation between 1/R = 1//partial derivative ln j/partial derivative ln t/ and ln t at a fixed temperature, mu and U-c are easily obtained. Inserting these parameters into U(j) we can extract j(c). So mu(T), U-c(T) and j(c)(T) are able to be derived from relaxation measurements at different temperatures. This method was applied to a HgBa2Ca2Cu3O8+delta superconductor. The results were discussed within the collective pinning and creep theory. (C) 1998 Elsevier Science B.V. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/44771]  |
| 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 | Yu, Y,Zeng, ZY,Xu, XN,et al. Temperature dependence of the critical current determined from magnetic relaxation in HgBa2Ca2Cu3O8+delta[J]. PHYSICA C,1998,298(3-4):240. |
| APA | Yu, Y.,Zeng, ZY.,Xu, XN.,Shao, HM.,Qin, MJ.,...&Zhao, ZX.(1998).Temperature dependence of the critical current determined from magnetic relaxation in HgBa2Ca2Cu3O8+delta.PHYSICA C,298(3-4),240. |
| MLA | Yu, Y,et al."Temperature dependence of the critical current determined from magnetic relaxation in HgBa2Ca2Cu3O8+delta".PHYSICA C 298.3-4(1998):240. |
入库方式： OAI收割
来源：物理研究所
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