Temperature dependence of microwave oscillations in magnetic tunnel junctions with a perpendicularly magnetized free layer
文献类型：期刊论文
| 作者 | Guo, P; Feng, JF; Wei, HX; Han, XF; Fang, B(方彬); Zhang, BS(张宝顺) ; Zeng, ZM(曾中明)
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| 刊名 | APPLIED PHYSICS LETTERS
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| 出版日期 | 2015 |
| 卷号 | 106期号:1页码:5 |
| 通讯作者 | Feng, JF |
| 英文摘要 | We experimentally study the temperature dependence of the spin-transfer-torque-induced microwave oscillations in MgO-based magnetic tunnel junction nanopillars with a perpendicularly magnetized free layer. We demonstrate that the oscillation frequency increases rapidly with decreasing temperature, which is mainly ascribed to the temperature dependence of both the saturation magnetization and the perpendicular magnetic anisotropy. We also find that a strong temperature dependence of the output power while a nonmonotonic temperature dependence of spectral linewidth are maintained for a constant dc bias in measured temperature range. Possible mechanisms leading to the different dependences of oscillation frequency, output power, and linewidth are discussed. (C) 2015 AIP Publishing LLC. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/3449]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米加工公共平台 |
| 推荐引用方式 GB/T 7714 | Guo, P,Feng, JF,Wei, HX,et al. Temperature dependence of microwave oscillations in magnetic tunnel junctions with a perpendicularly magnetized free layer[J]. APPLIED PHYSICS LETTERS,2015,106(1):5. |
| APA | Guo, P.,Feng, JF.,Wei, HX.,Han, XF.,Fang, B.,...&Zeng, ZM.(2015).Temperature dependence of microwave oscillations in magnetic tunnel junctions with a perpendicularly magnetized free layer.APPLIED PHYSICS LETTERS,106(1),5. |
| MLA | Guo, P,et al."Temperature dependence of microwave oscillations in magnetic tunnel junctions with a perpendicularly magnetized free layer".APPLIED PHYSICS LETTERS 106.1(2015):5. |
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