Conductance enhancement due to interface magnons in electron-beam evaporated MgO magnetic tunnel junctions with CoFeB free layer deposited at different pressure
文献类型：期刊论文
| 作者 | Guo, P ; Li, DL ; Feng, JF ; Kurt, H ; Yu, GQ ; Chen, JY ; Wei, HX ; Coey, JMD ; Han, XF |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2014 |
| 卷号 | 116期号:15 |
| ISSN号 | 0021-8979 |
| 通讯作者 | Feng, JF (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Electron-beam evaporated MgO-based magnetic tunnel junctions have been fabricated with the CoFeB free layer deposited at Ar pressure from 1 to 4 mTorr, and their tunneling process has been studied as a function of temperature and bias voltage. By changing the growth pressure, the junction dynamic conductance dI/dV, inelastic electron tunneling spectrum d(2)I/dV(2), and tunneling magnetoresistance vary with temperature. Moreover, the low-energy magnon cutoff energy E-C derived from the conductance versus temperature curve agrees with interface magnon energy obtained directly from the inelastic electron tunneling spectrum, which demonstrates that interface magnons are involved in the electron tunneling process, opening an additional conductance channel and thus enhancing the total conductance. (C) 2014 AIP Publishing LLC. |
| 资助信息 | State Key Project of Fundamental Research of Ministry of Science and Technology [MOST] [2010CB934400]; National Natural Science Foundation [NSFC] [11374351, 11174341, 11222432]; Science Foundation Ireland via NISE project [10/IN.1/13006] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59136]  |
| 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 | Guo, P,Li, DL,Feng, JF,et al. Conductance enhancement due to interface magnons in electron-beam evaporated MgO magnetic tunnel junctions with CoFeB free layer deposited at different pressure[J]. JOURNAL OF APPLIED PHYSICS,2014,116(15). |
| APA | Guo, P.,Li, DL.,Feng, JF.,Kurt, H.,Yu, GQ.,...&Han, XF.(2014).Conductance enhancement due to interface magnons in electron-beam evaporated MgO magnetic tunnel junctions with CoFeB free layer deposited at different pressure.JOURNAL OF APPLIED PHYSICS,116(15). |
| MLA | Guo, P,et al."Conductance enhancement due to interface magnons in electron-beam evaporated MgO magnetic tunnel junctions with CoFeB free layer deposited at different pressure".JOURNAL OF APPLIED PHYSICS 116.15(2014). |
入库方式： OAI收割
来源：物理研究所
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