Nonmagnetic B-site impurity-induced ferromagnetic tendency in CE-type manganites
文献类型：期刊论文
| 作者 | X. Chen ; S. Dong ; K. F. Wang ; J. M. Liu ; E. Dagotto |
| 刊名 | Physical Review B
 |
| 出版日期 | 2009 |
| 卷号 | 79期号:2 |
| 关键词 | antiferromagnetic materials calcium compounds crystal defects ferromagnetic materials magnetic impurities magnetic transitions manganese compounds Monte Carlo methods praseodymium compounds spin glasses superexchange interactions cr |
| ISSN号 | 1098-0121 |
| 中文摘要 | Using a two-orbital model and Monte Carlo simulations, we investigate the effect of nonmagnetic B-site substitution on half-doped CE-type manganites. The lattice defects induced by this substitution destabilize the CE phase, which transforms into (1) the ferromagnetic (FM) metallic competing state, (2) a regime with short-range FM clusters, or (3) a spin-glass state, depending on couplings and on the valence of the B-site substitution. While a C-type antiferromagnetic state is usually associated with an average e(g) charge density of less than 0.5, the nonmagnetic B-site substitution that lowers the e(g) charge density is still found to enhance the FM tendency in our simulations. The present calculations are in qualitative agreement with experiments and provide a rationalization for the complex role of nonmagnetic B-site substitution in modulating the phase transitions in manganites. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31831]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | X. Chen,S. Dong,K. F. Wang,et al. Nonmagnetic B-site impurity-induced ferromagnetic tendency in CE-type manganites[J]. Physical Review B,2009,79(2). |
| APA | X. Chen,S. Dong,K. F. Wang,J. M. Liu,&E. Dagotto.(2009).Nonmagnetic B-site impurity-induced ferromagnetic tendency in CE-type manganites.Physical Review B,79(2). |
| MLA | X. Chen,et al."Nonmagnetic B-site impurity-induced ferromagnetic tendency in CE-type manganites".Physical Review B 79.2(2009). |
入库方式： OAI收割
来源：金属研究所
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