Effect of Ir content and sputtering conditions on unidirectional anisotropy of Ni-Fe/Mn-Ir films fabricated under the extremely clean sputtering process
exchange anisotropy;
extremely clean sputtering;
Ir content;
Mn-Ir;
sputtering conditions;
D O I:
10.1109/20.800708
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
An effect of the Ir content and sputtering conditions of Mn-Ir films on the strength of exchange anisotropy was investigated in Ni-Fe/Mn-Ir layers fabricated under the extremely clean sputtering process. We found that the unidirectional anisotropy constant J(K) monotonously increased with increasing the Ir content and decreasing the deposition rate of Mn-Ir films. The change of J(K) against the deposition late of Mn-Ir films Is possibly caused by the quite slight changes of the microstructure of Mn-Ir films, which were undetectable with XRD.