Magnetic transition and large low-field magnetoresistance near Curie temperature in polycrystalline La(2/3)A(1/3)MnO(3) (A=Ca,Sr)
文献类型：期刊论文
| 作者 | Li, RW ; Sun, JR ; Li, QA ; Zhu, T ; Zhang, SY ; Shen, BG |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2003 |
| 卷号 | 93期号:10页码:8092 |
| 关键词 | GRAIN-BOUNDARIES PHASE-TRANSITION FILMS LA0.7CA0.3MNO3 PEROVSKITES TRANSPORT |
| ISSN号 | 0021-8979 |
| 通讯作者 | Li, RW: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | By means of electron spin resonance, magnetization, and resistivity measurements, phase separation and a large low-field magnetoresistance (MR) accompanied by a first-order metamagnetic transition in the vicinity of Curie temperature (T-C) were observed in polycrystalline La2/3Ca1/3MnO3, but were not observed in polycrystalline La2/3Sr1/3MnO3. It is obvious that the phase separation and large low-field MR near the T-C are not universal features of the colossal MR materials. By combining the magnetic field dependence of magnetization and resistance, it was suggested that the first-order metamagnetic transition from the paramagnetic to ferromagnetic state induced by a magnetic field should be responsible for the large low-field MR observed in polycrystalline La2/3Ca1/3MnO3. Undoubtedly, this observation is very important for exploring large low-field MR in high temperature, which is necessary for practical application of the colossal magnetoresistance effect. (C) 2003 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41440]  |
| 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 | Li, RW,Sun, JR,Li, QA,et al. Magnetic transition and large low-field magnetoresistance near Curie temperature in polycrystalline La(2/3)A(1/3)MnO(3) (A=Ca,Sr)[J]. JOURNAL OF APPLIED PHYSICS,2003,93(10):8092. |
| APA | Li, RW,Sun, JR,Li, QA,Zhu, T,Zhang, SY,&Shen, BG.(2003).Magnetic transition and large low-field magnetoresistance near Curie temperature in polycrystalline La(2/3)A(1/3)MnO(3) (A=Ca,Sr).JOURNAL OF APPLIED PHYSICS,93(10),8092. |
| MLA | Li, RW,et al."Magnetic transition and large low-field magnetoresistance near Curie temperature in polycrystalline La(2/3)A(1/3)MnO(3) (A=Ca,Sr)".JOURNAL OF APPLIED PHYSICS 93.10(2003):8092. |
入库方式： OAI收割
来源：物理研究所
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