Nano-faceting of Cu capping layer grown on Fe/Si (111) and its effect on magnetic anisotropy
文献类型：期刊论文
| 作者 | Liu, HL ; He, W ; Wu, Q ; Zhang, XQ ; Yang, HT ; Cheng, ZH |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2012 |
| 卷号 | 112期号:9 |
| 关键词 | FE FILMS ULTRATHIN FILMS SI(111) ADSORPTION SURFACES STRESS STEP |
| ISSN号 | 0021-8979 |
| 通讯作者 | Cheng, ZH (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. |
| 中文摘要 | NdFeAsO0.88F0.12 belongs to the recently discovered family of high-T-C iron-based superconductors. We have studied the influence of high pressure on transport properties of this material at low temperatures using the four-probe electrical conductivity technique in a diamond cell. Contrary to La-based compounds, we did not observe a maximum in T-C under pressure. Under compression, T-C drops rapidly as a linear function of pressure with the slope k = -2.8 +/- 0.1 K/GPa. Under decompression, the behavior is completely reversible. The extrapolated value of T-C at zero pressure is about T-C(0) = 51.7 +/- 0.4 K. At pressures higher than similar to 18.4 GPa, the superconducting state disappears at all measured temperatures, although electrical resistance changes slope dramatically and shows a concave behavior. These observations may be related to the Kondo effect or to a weak localization of two-dimensional carriers at high pressures and low temperatures below similar to 45 K, indicating a competition mechanism with the superconducting phase. On the bases of our experimental data, we propose a tentative P-T phase diagram of NdFeAsO0.88F0.12. Copyright (C) EPLA, 2012 |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China (973 program) [2009CB929201, 2010CB934202, 2011CB921801]; National Natural Sciences Foundation of China [50931006, 11034004, 51021061] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49659]  |
| 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 | Liu, HL,He, W,Wu, Q,et al. Nano-faceting of Cu capping layer grown on Fe/Si (111) and its effect on magnetic anisotropy[J]. JOURNAL OF APPLIED PHYSICS,2012,112(9). |
| APA | Liu, HL,He, W,Wu, Q,Zhang, XQ,Yang, HT,&Cheng, ZH.(2012).Nano-faceting of Cu capping layer grown on Fe/Si (111) and its effect on magnetic anisotropy.JOURNAL OF APPLIED PHYSICS,112(9). |
| MLA | Liu, HL,et al."Nano-faceting of Cu capping layer grown on Fe/Si (111) and its effect on magnetic anisotropy".JOURNAL OF APPLIED PHYSICS 112.9(2012). |
入库方式： OAI收割
来源：物理研究所
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