Electrical Transport Properties in La0.7Ca0.3-xSrxMnO3 Thin Films
文献类型：期刊论文
| 作者 | Zhang Yuan-Yuan1; Tang Xiao-Dong1; Chen Ying2; Wang Gen-Shui2; Dong Xian-Lin2 |
| 刊名 | JOURNAL OF INORGANIC MATERIALS
 |
| 出版日期 | 2016-03-20 |
| 卷号 | 31期号:3页码:274-278 |
| 关键词 | manganese oxides Sol-Gel method transport properties |
| 英文摘要 | The influence of the chemical composition on the structure, magnetic and electrical transport properties of La0.7Ca0.3-xSrxMnO3 (LCSMO, x <= 0.05) thin films was systematically studied. LCSMO thin films were prepared by Sol-Gel method. XRD results show that all the films have typical perovskite structure. With increase of Sr doping concentration, both Curie temperature T-C and metal-insulator transition temperature T-MI of LCSMO thin films increase monotonously. When Sr doping concentration x <= 0.05, with increase of temperature, absolute value of MR decreases first, then increases to a maximum value around T-MI, and finally decreases, which indicates that the disorder coming from phase separation around T-MI contributes greatly to MR. The field dependence of MR values at certain temperature can be classified into two kinds. When the temperature is much lower than T-MI, dual gradient of MR with the magnetic field is shown. The tunneling effect on the grain boundaries plays a dominant part in the low magnetic field, and this effect is particularly sensitive to the magnetic field; the suppression of spin fluctuations by magnetic field is the main reason in the high magnetic field range. When the temperature is higher than T-MI, MR of LCSMO thin films changes almost linearly with the magnetic field which is mainly due to suppression of spin fluctuations by magnetic field. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Ceramics |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | MAGNETORESISTANCE ; MANGANITES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000370927000008 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23201]  |
| 专题 | 上海硅酸盐研究所_无机功能材料与器件重点实验室_期刊论文 |
| 作者单位 | 1.E China Normal Univ, Sch Informat Sci Technol, Shanghai 200241, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Yuan-Yuan,Tang Xiao-Dong,Chen Ying,et al. Electrical Transport Properties in La0.7Ca0.3-xSrxMnO3 Thin Films[J]. JOURNAL OF INORGANIC MATERIALS,2016,31(3):274-278. |
| APA | Zhang Yuan-Yuan,Tang Xiao-Dong,Chen Ying,Wang Gen-Shui,&Dong Xian-Lin.(2016).Electrical Transport Properties in La0.7Ca0.3-xSrxMnO3 Thin Films.JOURNAL OF INORGANIC MATERIALS,31(3),274-278. |
| MLA | Zhang Yuan-Yuan,et al."Electrical Transport Properties in La0.7Ca0.3-xSrxMnO3 Thin Films".JOURNAL OF INORGANIC MATERIALS 31.3(2016):274-278. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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