Thermally activated energies of YBa2Cu3O7-delta and Y0.8Ca0.2Ba2Cu3O7-delta thin films
文献类型：期刊论文
| 作者 | Zhang, YZ ; Wen, HH ; Wang, Z |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2006 |
| 卷号 | 74期号:14 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTORS HIGH-TC SUPERCONDUCTORS LIQUID STATE FLUX MOTION CREEP IRREVERSIBILITY SUPERLATTICES RESISTIVITY LATTICE |
| ISSN号 | 1098-0121 |
| 通讯作者 | Zhang, YZ (reprint author), Chinese Acad Sci, Natl Lab Superconduct, Inst Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | Resistivities of YBa2Cu3O7-delta and Ca doped Y0.8Ca0.2Ba2Cu3O7-delta thin films are studied around superconducting transition regions in different magnetic fields. Based on a theoretical prediction of the resistivity rho=(2 rho U-c/T)exp(-U/T) and experimental data, thermally activated energy U and the derivative -partial derivative ln rho/partial derivative T-1 are studied for determining the consistency between experimental data and different characterizing processes. The study shows that the widely accepted assumption, (2 rho U-c/T) being a constant, is probably misleading in characterizing the vortex behaviors. If we overthrow the assumption and assume that rho(c) is temperature independent in rho=(2 rho U-c/T)exp(-U/T), we have that -partial derivative ln rho/partial derivative T-1=(1-T/U)(U-T partial derivative U/partial derivative T). The corresponding regressions of rho(T,H) and -partial derivative ln rho(T,H)/partial derivative T-1 are in good agreement with experimental data and result in a completely different scale of the thermally activated energy. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45754]  |
| 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 | Zhang, YZ,Wen, HH,Wang, Z. Thermally activated energies of YBa2Cu3O7-delta and Y0.8Ca0.2Ba2Cu3O7-delta thin films[J]. PHYSICAL REVIEW B,2006,74(14). |
| APA | Zhang, YZ,Wen, HH,&Wang, Z.(2006).Thermally activated energies of YBa2Cu3O7-delta and Y0.8Ca0.2Ba2Cu3O7-delta thin films.PHYSICAL REVIEW B,74(14). |
| MLA | Zhang, YZ,et al."Thermally activated energies of YBa2Cu3O7-delta and Y0.8Ca0.2Ba2Cu3O7-delta thin films".PHYSICAL REVIEW B 74.14(2006). |
入库方式： OAI收割
来源：物理研究所
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