Theory of tunneling magnetoresistance and tunneling electroresistance in Co/BiFeO(3)/La(2/3)Sr(1/3)MnO(3) junctions
文献类型：期刊论文
| 作者 | Ju, S ; Cai, TY ; Guo, GY ; Li, ZY |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2008 |
| 卷号 | 104期号:5 |
| 关键词 | THIN-FILM HETEROSTRUCTURES MULTIFERROICS FERROELECTRICITY FERROMAGNETS |
| ISSN号 | 0021-8979 |
| 中文摘要 | We present a theory of tunnel magnetoresistance (TMR) and tunnel electroresistance (TER) in multiferroic Co/BiFeO(3)/La(2/3)Sr(1/3)MnO(3) junctions. Both the half-metallic band structure of the La(2/3)Sr(1/3)MnO(3) electrode and the multiferroicity in the BiFeO(3) barrier are considered explicitly in our model. Using transfer matrix method, we have derived an analytic formula for TMR in these structures. The calculations indicate that TMR is larger when the electric polarization in BiFeO(3) points to half-metallic La(2/3)Sr(1/3)MnO(3) and that the thicker the barrier is, the larger is the TMR, while for the negative electric polarization, the thicker the barrier is, the smaller is the TMR. In the mean time, the weak ferromagnetism, arising from spin-orbit coupling in BiFeO(3), is found to give a further variation of TMR and TER in these structures. These results agree with recent experimental observation well. (C) 2008 American Institute of Physics. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10474069, 10504023]; National Science Council of Taiwan; National Center for Theoretical Sciences of Taiwan |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45704]  |
| 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 | Ju, S,Cai, TY,Guo, GY,et al. Theory of tunneling magnetoresistance and tunneling electroresistance in Co/BiFeO(3)/La(2/3)Sr(1/3)MnO(3) junctions[J]. JOURNAL OF APPLIED PHYSICS,2008,104(5). |
| APA | Ju, S,Cai, TY,Guo, GY,&Li, ZY.(2008).Theory of tunneling magnetoresistance and tunneling electroresistance in Co/BiFeO(3)/La(2/3)Sr(1/3)MnO(3) junctions.JOURNAL OF APPLIED PHYSICS,104(5). |
| MLA | Ju, S,et al."Theory of tunneling magnetoresistance and tunneling electroresistance in Co/BiFeO(3)/La(2/3)Sr(1/3)MnO(3) junctions".JOURNAL OF APPLIED PHYSICS 104.5(2008). |
入库方式： OAI收割
来源：物理研究所
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