Sizable Residual Quasiparticle Density of States Induced by Impurity Scattering Effect in Ba(Fe1-xCox)(2)As-2 Single Crystals
文献类型：期刊论文
| 作者 | Mu, G ; Zeng, B ; Cheng, P ; Wang, ZS ; Fang, L ; Shen, B ; Shan, L ; Ren, C ; Wen, HH |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2010 |
| 卷号 | 27期号:3 |
| 关键词 | D-WAVE SUPERCONDUCTORS LAYERED SUPERCONDUCTOR VORTEX GAP HEAT |
| ISSN号 | 0256-307X |
| 通讯作者 | Mu, G (reprint author), Chinese Acad Sci, Natl Lab Superconduct, Inst Phys, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | This paper reports that La-doped BiFeO3 (Bi1-xLaxFeO3, x = 0, 0.1, 0.2, 0.3, 0.6, 0.8 and 1.0) were studied by using micro-Raman spectroscopy and x-ray diffraction (XRD). The XRD patterns indicate that the structure of Bi1-xLaxFeO3 changes from rhombohedral BiFeO3 to orthorhombic LaFeO3. The results of Raman spectroscopy show good agreement with the XRD results. Strikingly, the phonon peak at around 610 cm(-1) and the two-phonon peaks in the high frequency range exist in all compounds and enhance with increasing La substitution. The increasing intensity of the 610 cm(-1) peak is attributed to the changes in the FeO6 octahedron during the rhombohedral-orthorhombic phase transition. The enhancements of the two-phonon peaks are associated with the breakdown of the cycloid spin configuration with the appearance of the orthorhombic structure. These results indicate the existence of strong spin phonon coupling in Bi1-xLaxFeO3, which may provide useful information for understanding the effects of La content on the structural and magnetic properties of Bi1-xLaxFeO3. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China; National Basic Research Program of China [2006CB601000, 2006CB921107, 2006CB921802]; Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52670]  |
| 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 | Mu, G,Zeng, B,Cheng, P,et al. Sizable Residual Quasiparticle Density of States Induced by Impurity Scattering Effect in Ba(Fe1-xCox)(2)As-2 Single Crystals[J]. CHINESE PHYSICS LETTERS,2010,27(3). |
| APA | Mu, G.,Zeng, B.,Cheng, P.,Wang, ZS.,Fang, L.,...&Wen, HH.(2010).Sizable Residual Quasiparticle Density of States Induced by Impurity Scattering Effect in Ba(Fe1-xCox)(2)As-2 Single Crystals.CHINESE PHYSICS LETTERS,27(3). |
| MLA | Mu, G,et al."Sizable Residual Quasiparticle Density of States Induced by Impurity Scattering Effect in Ba(Fe1-xCox)(2)As-2 Single Crystals".CHINESE PHYSICS LETTERS 27.3(2010). |
入库方式： OAI收割
来源：物理研究所
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