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题名: Temperature dependence of microwave oscillations in magnetic tunnel junctions with a perpendicularly magnetized free layer
作者: Guo, P; Feng, JF; Wei, HX; Han, XF; Fang, B(方彬); Zhang, BS(张宝顺); Zeng, ZM(曾中明)
通讯作者: Feng, JF
刊名: APPLIED PHYSICS LETTERS
发表日期: 2015
DOI: 10.1063/1.4905491
卷: 106, 期:1, 页:5
收录类别: SCI
部门归属: 纳米加工公共平台
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.
语种: 英语
JCR小类分区: 二区
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内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/3449
Appears in Collections:纳米加工公共平台_期刊论文

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Recommended Citation:
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.
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文件名: Temperature dependence of microwave oscillations in magnetic tunnel junctions with a perpendicularly magnetized free layer.pdf
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