Buffer-layer-enhanced magnetic field effect in La0.5Ca0.5MnO3/LaMnO3/SrTiO3:Nb heterojunctions
文献类型：期刊论文
| 作者 | Gao, WW ; Sun, JR ; Lu, XY ; Shang, DS ; Wang, J ; Hu, FX ; Shen, BG |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2011 |
| 卷号 | 109期号:7 |
| 关键词 | LA0.5CA0.5MNO3 PHASE |
| ISSN号 | 0021-8979 |
| 通讯作者 | Sun, JR: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | The transport behaviors of La0.5Ca0.5MnO3/LaMnO3/SrTiO3:Nb heterojunctions with a LaMnO3 layer thickness of between 0 and 12 nm have been systematically studied. The effect of the magnetic field on the junction without the buffer layer is weak. The influence of the magnetic field on the junction is maximized when the layer thickness is similar to 3 nm, demonstrated by a significant field-induced increase in current when the bias voltage is fixed. The corresponding magnetoresistance of the junction is negative, and its maximal value is similar to-32% for a field change of 5 T at 80 K. Based on a quantitative analysis of the current-voltage characteristics, the interfacial barrier can be derived, and it shows a complex variation with an increase in layer thickness, first decreasing and then increasing. This is the apparent reason for the change in buffer-layer-enhanced negative magnetoresistance of the junctions for different layer thicknesses. (C) 2011 American Institute of Physics. [doi:10.1063/1.3562916] |
| 收录类别 | SCI |
| 资助信息 | National Basic Research of China; National Natural Science Foundation of China; Chinese Academy of Science; Beijing Municipal Nature Science Foundation |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34366]  |
| 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 | Gao, WW,Sun, JR,Lu, XY,et al. Buffer-layer-enhanced magnetic field effect in La0.5Ca0.5MnO3/LaMnO3/SrTiO3:Nb heterojunctions[J]. JOURNAL OF APPLIED PHYSICS,2011,109(7). |
| APA | Gao, WW.,Sun, JR.,Lu, XY.,Shang, DS.,Wang, J.,...&Shen, BG.(2011).Buffer-layer-enhanced magnetic field effect in La0.5Ca0.5MnO3/LaMnO3/SrTiO3:Nb heterojunctions.JOURNAL OF APPLIED PHYSICS,109(7). |
| MLA | Gao, WW,et al."Buffer-layer-enhanced magnetic field effect in La0.5Ca0.5MnO3/LaMnO3/SrTiO3:Nb heterojunctions".JOURNAL OF APPLIED PHYSICS 109.7(2011). |
入库方式： OAI收割
来源：物理研究所
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