Dependence of exchange coupling on antiferromagnetic layer thickness in NiFe/CoO bilayers
Dependence of exchange coupling on antiferromagnetic layer thickness in NiFe/CoO bilayers
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DOI：
10.1063/1.367863
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发表时间：
1998-10
影响因子：
3.2
通讯作者：
T. Ambrose;C. Chien
中科院分区：
文献类型：
--
作者：
T. Ambrose;C. Chien
对 NiFe/CoO 双层中交换耦合对 CoO 层厚度 tAF（5 至 500 A）的依赖性进行了系统研究。对于大 CoO 厚度 (tAF>100 A)，交换场变化为 1/tAF，而对于小 CoO 厚度 (tAF<100 A)，尼尔温度 TN 和阻挡温度 TB 的有限尺寸缩放占主导地位。
A systematic study of the dependence of exchange coupling in NiFe/CoO bilayers on CoO layer thickness tAF from 5 to 500 A has been made. For large CoO thicknesses (tAF>100 A), the exchange field varies as 1/tAF, whereas for small CoO thicknesses (tAF<100 A), finite-size scaling of the Neel temperature TN and also the blocking temperature TB dominate.