Spin-valve-like properties and annealing effect in ferromagnetic tunnel junctions
Spin-valve-like properties and annealing effect in ferromagnetic tunnel junctions
复制标题
铁磁隧道结中的类自旋阀特性和退火效应
DOI：
10.1109/20.619495
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发表时间：
1997
影响因子：
2.1
通讯作者：
K. Kobayashi
中科院分区：
文献类型：
--
作者：
M. Sato;K. Kobayashi
制备了天然氧化铝势垒的铁磁隧道结，并研究了氧化时间、铝厚度和退火温度对隧道性能的影响。在电阻中观察到10%至15%的变化，并且在某些结中，通过在250至300/spl度/C下退火，MR比增加。Ni-Fe/Co/Al-AlO/sub x//Co/Ni-Fe/Fe-Mn/NiFe结在300/spl℃下退火1小时后，表现出24%的自旋阀样MR变化。
We fabricated ferromagnetic tunnel junctions with naturally oxidized Al barriers, and investigated the effects of Al oxidization time, Al thickness and annealing temperature on the tunnel properties. Changes of between 10 and 15% have been observed in the resistance, and in some junctions, the MR ratios increase by annealing at 250 to 300/spl deg/C. The Ni-Fe/Co/Al-AlO/sub x//Co/Ni-Fe/Fe-Mn/NiFe junction showed a 24% spin-valve-like MR change after annealing at 300/spl deg/C for one hour.