Effects of layered structural features on charge/orbital ordering in (La, Sr)(n+1)MnnO3n+1 (n=1 and 2)
文献类型：期刊论文
| 作者 | Ma, C ; Yang, HX ; Zeng, LJ ; Li, ZA ; Zhang, Y ; Qin, YB ; Li, JQ |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2009 |
| 卷号 | 21期号:4 |
| 关键词 | PHASE-SEPARATION CHARGE LASR2MN2O7 LA0.5CA0.5MNO3 TRANSITION MANGANITES PHYSICS OXIDES |
| ISSN号 | 0953-8984 |
| 通讯作者 | Li, JQ: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | The charge/orbital ordering (COO) of the layered mixed-valence manganites (La, Sr)(n+1)MnnO3n+1 (n = 1 and 2) is examined by first-principles calculations and discussed in comparison with the La0.5Ca0.5MnO3 perovskite phase (n = infinity). The results demonstrated that the layered structural features could yield not only visibly weak coupling between Mn- O layers but also various features in the orbital ordering associated with different types of local structural distortions. In both La0.5Sr1.5MnO4 (n = 1) and LaSr2Mn2O7 (n = 2) phases, the orbital ordering can be chiefly assigned to the d(x)(-y)(2)(2) orbital, in contrast with the zigzag-type d(z)(2) orbital ordering in the n = infinity perovskite phase. Our theoretical analysis shows that a variety of essential factors, including the local structural distortions of the MnO6 octahedra, the on-site Coulomb interaction, and magnetic interaction, have to be properly considered in order to achieve acceptable COO ground states for the layered variants in (La, Sr)(n+1)MnnO3n+1. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36759]  |
| 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 | Ma, C,Yang, HX,Zeng, LJ,et al. Effects of layered structural features on charge/orbital ordering in (La, Sr)(n+1)MnnO3n+1 (n=1 and 2)[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2009,21(4). |
| APA | Ma, C.,Yang, HX.,Zeng, LJ.,Li, ZA.,Zhang, Y.,...&Li, JQ.(2009).Effects of layered structural features on charge/orbital ordering in (La, Sr)(n+1)MnnO3n+1 (n=1 and 2).JOURNAL OF PHYSICS-CONDENSED MATTER,21(4). |
| MLA | Ma, C,et al."Effects of layered structural features on charge/orbital ordering in (La, Sr)(n+1)MnnO3n+1 (n=1 and 2)".JOURNAL OF PHYSICS-CONDENSED MATTER 21.4(2009). |
入库方式： OAI收割
来源：物理研究所
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