Modification of microstructure and magnetic properties of Fe/Cr multilayers caused by ion irradiation
Modification of microstructure and magnetic properties of Fe/Cr multilayers caused by ion irradiation
复制标题
DOI：
10.1016/j.jmmm.2004.09.061
复制
发表时间：
2005-02
影响因子：
2.7
通讯作者：
M. Kopcewicz;F. Stobiecki;J. Jagielski;B. Szymański;M. Urbaniak;T. Luciński
中科院分区：
文献类型：
--
作者：
M. Kopcewicz;F. Stobiecki;J. Jagielski;B. Szymański;M. Urbaniak;T. Luciński
利用转换电子穆斯堡尔谱（CEMS）、振动样品磁强计（VSM）和磁电阻率等方法，研究了Ar离子辐照对Fe/Cr多层膜的微结构、层间耦合和巨磁电阻效应的影响。反铁磁耦合的损失和GMR的同时降解，观察到的离子剂量增加，是由于形成针孔，由于界面粗糙度的增加，并在高离子剂量，由离子束混合导致的Fe和Cr的合金化在接口。
The influence of Ar-ion irradiation on the microstructure, interlayer coupling and giant magnetoresistance (GMR) effect in the model Fe/Cr system was studied by the conversion electron Mössbauer spectrometry (CEMS), vibrating sample magnetometry (VSM), and magnetoresistivity, for the Fe-1.4nm/Cr-tCrmultilayers with tCrranging from 0.73 to 1.85nm. The loss of antiferromagnetic coupling and the simultaneous degradation of GMR, observed for increasing ion dose, was caused by the formation of pinholes due to the increase of interface roughness and at high ion doses, by the ion-beam mixing leading to the alloying of Fe and Cr at interfaces.