Anomalous Meissner effect in pnictide superconductors
文献类型：期刊论文
| 作者 | Prozorov, R ; Tanatar, MA ; Shen, B ; Cheng, P ; Wen, HH ; Bud'ko, SL ; Canfield, PC |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2010 |
| 卷号 | 82期号:18 |
| 关键词 | UPPER CRITICAL-FIELD SURFACE-BARRIER SINGLE-CRYSTALS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Prozorov, R: Iowa State Univ, Ames Lab, Ames, IA 50011 USA. |
| 中文摘要 | The Meissner effect has been studied in Ba(Fe(0.926)Co(0.074))(2)As(2) and Ba(0.6)K(0.4)Fe(2)As(2) single crystals and compared to well known, type-II superconductors LuNi(2)B(2)C and V(3)Si. Whereas flux penetration is mostly determined by the bulk pinning (and, perhaps, surface barrier) resulting in a large negative magnetization, the flux expulsion upon cooling in a magnetic field is very small, which could also be due to pinning and/or surface-barrier effects. However, in stark contrast with the expected behavior, the amount of the expelled flux increases almost linearly with the applied magnetic field, at least up to our maximum field of 5.5 T, which far exceeds the upper limit for the surface barrier. One interpretation of the observed behavior is that there is a field-driven suppression of magnetic pair breaking. |
| 收录类别 | SCI |
| 资助信息 | U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358]; Natural Science Foundation of China; Ministry of Science and Technology of China [2011CB605900]; Alfred P. Sloan Foundation |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33863]  |
| 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 | Prozorov, R,Tanatar, MA,Shen, B,et al. Anomalous Meissner effect in pnictide superconductors[J]. PHYSICAL REVIEW B,2010,82(18). |
| APA | Prozorov, R.,Tanatar, MA.,Shen, B.,Cheng, P.,Wen, HH.,...&Canfield, PC.(2010).Anomalous Meissner effect in pnictide superconductors.PHYSICAL REVIEW B,82(18). |
| MLA | Prozorov, R,et al."Anomalous Meissner effect in pnictide superconductors".PHYSICAL REVIEW B 82.18(2010). |
入库方式： OAI收割
来源：物理研究所
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