Two-dimensional vortex dynamics in decoupled YBa2Cu3O7/PrBa2Cu3O7 superlattices
文献类型：期刊论文
| 作者 | Qiu, XG ; Chen, GX ; Zhao, BR ; Moshchalkov, VV ; Bruynseraede, Y |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2003 |
| 卷号 | 68期号:2 |
| 关键词 | HIGH-TC SUPERCONDUCTORS FLUX-LINE-LATTICE HIGH-TEMPERATURE SUPERCONDUCTORS QUANTUM COLLECTIVE CREEP YBA2CU3O7-DELTA FILMS FINITE-TEMPERATURE GLASS PHASE THIN-FILM VORTICES TRANSITIONS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Qiu, XG (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Two-dimensional (2D) vortex dynamics is studied in YBa2Cu3O7/PrBa2Cu3O7 superlattices by measuring the current-voltage (I-V) characteristics. In the high current limit, the 2D collective creep is observed with an activation energy U(j)proportional toj(-mu), with j the current density. The exponent mu is 0.8 at low temperatures and mu = 0.2 at high temperatures. A dislocation-mediated vortex melting occurs when the temperature is increased. In the low current limit, the exponential growth of the energy barrier for elastic motion is prohibited by the plastic deformation of vortices. The observed plateau in the resistive transition is attributed to the possible quantum tunneling of vortices. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46271]  |
| 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 | Qiu, XG,Chen, GX,Zhao, BR,et al. Two-dimensional vortex dynamics in decoupled YBa2Cu3O7/PrBa2Cu3O7 superlattices[J]. PHYSICAL REVIEW B,2003,68(2). |
| APA | Qiu, XG,Chen, GX,Zhao, BR,Moshchalkov, VV,&Bruynseraede, Y.(2003).Two-dimensional vortex dynamics in decoupled YBa2Cu3O7/PrBa2Cu3O7 superlattices.PHYSICAL REVIEW B,68(2). |
| MLA | Qiu, XG,et al."Two-dimensional vortex dynamics in decoupled YBa2Cu3O7/PrBa2Cu3O7 superlattices".PHYSICAL REVIEW B 68.2(2003). |
入库方式： OAI收割
来源：物理研究所
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