| Charge-order melting and magnetic phase separation in thin films of Pr0.7Ca0.3MnO3. | |
| Zhang, Y. Q.1,2,3; Zhang, Z. D.1,2; Aarts, J.3 | |
| 通讯作者 | Zhang, Y. Q.() |
| 2009-06-01 | |
| 发表期刊 | PHYSICAL REVIEW B
 |
| ISSN | 1098-0121 |
| 卷号 | 79期号:22页码:5 |
| 摘要 | We investigate the effect of strain on the phenomenon of charge-order melting, that is the transformation of a charge-ordered insulating state to a metallic state under the influence of a magnetic field (the melting field) in thin films of Pr0.7Ca0.3MnO3 grown on various substrates. We find that unstrained films grown on SrLaGaO4 behave quite similar to bulk material, but that strained films grown on SrTiO3 and NdGaO3 show hugely increased melting fields. Strain relaxation by postannealing again leads to bulklike behavior. In this material the antiferromagnetic charge-order phase can coexist with a ferromagnetic insulating state. Magnetization measurements, where we demonstrate the presence of exchange bias effects, show that this is also the case in the strained films. We argue that the phase mixture in the strained films is more difficult to melt than in the unstrained case. |
| 关键词 | annealing calcium compounds charge-ordered states exchange interactions (electron) magnetic thin films magnetic transitions magnetisation melting metal-insulator transition phase separation praseodymium compounds stress relaxation |
| 资助者 | Dutch Royal Academy of Sciences (KNAW) ; Chinese Academy of Sciences ; National Natural Science Foundation of China |
| DOI | 10.1103/PhysRevB.79.224422 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Dutch Royal Academy of Sciences (KNAW)[04CDP020] ; Chinese Academy of Sciences ; National Natural Science Foundation of China[50331030] |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| WOS记录号 | WOS:000267699300075 |
| 出版者 | AMER PHYSICAL SOC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/96087 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Zhang, Y. Q. |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China 3.Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands |
| 推荐引用方式 GB/T 7714 | Zhang, Y. Q.,Zhang, Z. D.,Aarts, J.. Charge-order melting and magnetic phase separation in thin films of Pr0.7Ca0.3MnO3.[J]. PHYSICAL REVIEW B,2009,79(22):5. |
| APA | Zhang, Y. Q.,Zhang, Z. D.,&Aarts, J..(2009).Charge-order melting and magnetic phase separation in thin films of Pr0.7Ca0.3MnO3..PHYSICAL REVIEW B,79(22),5. |
| MLA | Zhang, Y. Q.,et al."Charge-order melting and magnetic phase separation in thin films of Pr0.7Ca0.3MnO3.".PHYSICAL REVIEW B 79.22(2009):5. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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