Colossal magnetoresistance in cluster glass-like insulator La0.67Sr0.33(Mn0.8Ni0.2)O-3
文献类型：期刊论文
| 作者 | Wang, ZH ; Shen, BG ; Tang, N ; Cai, JW ; Ji, TH ; Zhao, JG ; Zhan, WS ; Che, GC ; Dai, SY ; Ng, DHL |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 1999 |
| 卷号 | 85期号:8页码:5399 |
| 关键词 | GIANT MAGNETORESISTANCE FILMS TRANSITION OXIDES SYSTEM CA |
| ISSN号 | 0021-8979 |
| 通讯作者 | Wang, ZH: Chinese Acad Sci, State Key Lab Magnetism, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Substitution of Ni for Mn in La0.67Sr0.33MnO3 (LSMO) lowers the Curie temperature T-C from 365 K for LSMO to 194 K for La0.67Sr0.33(Mn-0.8 Ni-0.2)O-3, which exhibits a cluster glass-like state. The oxide is insulating under both zero field and 60 kOe, but application of the magnetic field induces colossal magnetoresistance (CMR) especially at low temperature. Far below T-C, the compound's field dependence of resistivity has a very similar shape with that of metallic perovskite manganite at relatively high temperature when the spin fluctuation grows stronger. The results indicate that the ferromagnetic superexchange between Ni and Mn, is helpful for the overall ferromagnetic exchange components just overcoming the generic antiferromagnetic exchange components, which leads to the presence of the cluster glass-like state. The reduction of the magnetic disorder and the suppression of the spin fluctuation in Mn-O layer by the external magnetic field are suggested to explain the CMR effect in this insulating compound (C) 1999 American Institute of Physics. [S0021-8979(99)36008-4]. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34865]  |
| 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 | Wang, ZH,Shen, BG,Tang, N,et al. Colossal magnetoresistance in cluster glass-like insulator La0.67Sr0.33(Mn0.8Ni0.2)O-3[J]. JOURNAL OF APPLIED PHYSICS,1999,85(8):5399. |
| APA | Wang, ZH.,Shen, BG.,Tang, N.,Cai, JW.,Ji, TH.,...&Ng, DHL.(1999).Colossal magnetoresistance in cluster glass-like insulator La0.67Sr0.33(Mn0.8Ni0.2)O-3.JOURNAL OF APPLIED PHYSICS,85(8),5399. |
| MLA | Wang, ZH,et al."Colossal magnetoresistance in cluster glass-like insulator La0.67Sr0.33(Mn0.8Ni0.2)O-3".JOURNAL OF APPLIED PHYSICS 85.8(1999):5399. |
入库方式： OAI收割
来源：物理研究所
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