Influence of a site local moments on ferromagnetic transition temperature in perovskite manganates
文献类型：期刊论文
| 作者 | J. Xu ; W. H. Tang ; J. K. Liang |
| 刊名 | Solid State Communications
 |
| 出版日期 | 1997 |
| 卷号 | 104期号:11页码:713-716 |
| 关键词 | magnetically ordered materials exchange and superexchange giant magnetoresistance films |
| ISSN号 | 0038-1098 |
| 中文摘要 | Substantial effect of A site local moment exhibited by rare earth ions on the ferromagnetic transition temperature T-c is presented through comparative study of two series of samples, i.e. (La1-ySmy)(1/3)Nd1/3Sr1/3MnO3 and La1/3Nd1/3(Ca1-xSrx)(1/3)MnO3 in which x and y are chosen to make the respective samples have the same average A site ionic radius (r(A)) It is found that, contrary to the prediction of the established T-c similar to [r(A)] phase diagram, for the two samples with the same [r(A)] the one with Sm substitution exhibits lower T-c than its counterpart with Ca substitution and the difference increases with Sm content. The result suggests that A site local moments weaken the double exchange interaction, hence reduce T-c. Possible reasons are discussed. (C) 1997 Published by Elsevier Science Ltd. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38160]  |
| 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 | J. Xu,W. H. Tang,J. K. Liang. Influence of a site local moments on ferromagnetic transition temperature in perovskite manganates[J]. Solid State Communications,1997,104(11):713-716. |
| APA | J. Xu,W. H. Tang,&J. K. Liang.(1997).Influence of a site local moments on ferromagnetic transition temperature in perovskite manganates.Solid State Communications,104(11),713-716. |
| MLA | J. Xu,et al."Influence of a site local moments on ferromagnetic transition temperature in perovskite manganates".Solid State Communications 104.11(1997):713-716. |
入库方式： OAI收割
来源：金属研究所
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