Dependence of the flux-creep activation energy on current density and magnetic field for a Ca-10(Pt3As8)[(Fe1-xPtx)(2)As-2](5) single crystal
文献类型：期刊论文
| 作者 | Ge, J ; Gutierrez, J ; Li, J ; Yuan, J ; Wang, HB ; Yamaura, K ; Takayama-Muromachi, E ; Moshchalkov, VV |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2014 |
| 卷号 | 104期号:11 |
| ISSN号 | 0003-6951 |
| 通讯作者 | Ge, J (reprint author), Katholieke Univ Leuven, INPAC Inst Nanoscale Phys & Chem, Celestijnenlaan 200D, B-3001 Louvain, Belgium. |
| 中文摘要 | We have performed detailed ac susceptibility measurements to investigate the vortex dynamics in a Ca-10(Pt3As8)[(Fe1-xPtx)(2)As-2](5) single crystal as a function of temperature, frequency, ac amplitude, and dc field. The field dependence of the activation energy U is derived in the framework of thermally activated flux creep theory, yielding a power law dependence of U similar to H-alpha with alpha approximate to -1.0 for H above 0.30 T, while below 0.3 T U is independent of the field. The activation energy reaches 10(4) K at low fields, suggesting strong pinning in the material. The nonlinear function of the activation energy vs. the current density is determined, which shows logarithmic dependence U (J) infinity InJ. (C) 2014 AIP Publishing LLC. |
| 资助信息 | FWO; Methusalem Funding by the Flemish Government; COST Action [MP1201]; World Premier International Research Center from MEXT; JSPS Japan; Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST Program) from JSPS; Advanced Low Carbon Technology Research and Development Program (ALCA) from JST; National Natural Science Foundation of China [11234006] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/58923]  |
| 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 | Ge, J,Gutierrez, J,Li, J,et al. Dependence of the flux-creep activation energy on current density and magnetic field for a Ca-10(Pt3As8)[(Fe1-xPtx)(2)As-2](5) single crystal[J]. APPLIED PHYSICS LETTERS,2014,104(11). |
| APA | Ge, J.,Gutierrez, J.,Li, J.,Yuan, J.,Wang, HB.,...&Moshchalkov, VV.(2014).Dependence of the flux-creep activation energy on current density and magnetic field for a Ca-10(Pt3As8)[(Fe1-xPtx)(2)As-2](5) single crystal.APPLIED PHYSICS LETTERS,104(11). |
| MLA | Ge, J,et al."Dependence of the flux-creep activation energy on current density and magnetic field for a Ca-10(Pt3As8)[(Fe1-xPtx)(2)As-2](5) single crystal".APPLIED PHYSICS LETTERS 104.11(2014). |
入库方式： OAI收割
来源：物理研究所
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