A New Property of Ferromagnetic‐Antiferromagnetic Coupling
A New Property of Ferromagnetic‐Antiferromagnetic Coupling
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DOI：
10.1002/pssb.19660160131
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发表时间：
1966
影响因子：
1.6
通讯作者：
D. Paccard;C. Schlenker;O. Massenet;R. Montmory;A. Yelon
中科院分区：
文献类型：
--
作者：
D. Paccard;C. Schlenker;O. Massenet;R. Montmory;A. Yelon
利用单轴薄膜研究了CoCoO、NiFeNiFeMn、NiFeCr2O3三种铁磁-反铁磁耦合系统。发现了这类系统的一个新性质，即磁滞回线的集中度作为跟踪的周期数(N)的函数。在前50个周期中，这种收缩遵循1/n定律，并与旋转滞后有关。这种现象归因于铁磁-反铁磁耦合的涨落，每次反转都会改变不同耦合区域之间的磁相互作用。
Three systems exhibiting ferromagnetic-antiferromagnetic coupling, CoCoO, NiFeNiFeMn, NiFeCr2O3, are studied using uniaxial thin films. A new property of such systems is found, i.e., a concentration of the hysteresis loops as a function of the number of cycles traced (n). This contraction follows a 1/n law for the first 50 cycles and is related to the rotational hysteresis. This phenomenon is attributed to fluctuations in the ferromagnetic-antiferromagnetic coupling, which modify the magnetic interactions between differently coupled regions with each reversal.