Enhanced planar hall sensitivity with better thermal stability by introducing interfacial modification of Au spacer
Enhanced planar hall sensitivity with better thermal stability by introducing interfacial modification of Au spacer
复制标题
通过引入 Au 间隔物的界面改性,增强平面霍尔灵敏度并具有更好的热稳定性
DOI:
10.1016/j.jmmm.2015.01.022
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发表时间:
2015-05
影响因子:
2.7
通讯作者:
Yu, Guang-Hua
中科院分区:
文献类型:
--
作者:
Jiang, Shao-Long;Liu, Yang;Li, Ming-Hua;Yu, Guang-Hua
This paper reports an enhancement of planar Hall sensitivity in NiFe/Au/IrMn multilayers by introducing interfacial modification. The improvement of the sensitivity derives from the increase of resistivity change (Δρ), which is attributed to strengthened spin-asymmetry of polarized electrons in NiFe layer induced by strong spin–orbit scattering of Au layer. Furthermore, the NiFe/Au/IrMn structure based sensor exhibits good thermal stability. The high sensitivity together with good thermal stability makes the NiFe/Au/IrMn structure based sensor very promising for bio-detections.
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