MAGNETIC-ANISOTROPY OF EPITAXIAL FE/PT(001) MULTILAYERS

被引：29
作者：
SAKURAI, M
机构：
[1] Advanced Materials Research Laboratory, Tosoh Corporation, Hayakawa 2743-1, Ayase
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 06期
关键词：
D O I：
10.1103/PhysRevB.50.3761
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The structure of epitaxial Fe/Pt(001) multilayers deposited by e-beam evaporation was characterized by a four-circle x-ray diffractometer and the magnetic anisotropy was investigated using a torque magnetometer. For epitaxial Fe/Pt(001) multilayers, a structural transition of the Fe layer is found to occur with increasing Fe layer thickness. The critical thickness is around 8 angstrom. Magnetic anisotropy and coercive force change with the transition. The out-of-plane volume anisotropy decreases for the Fe layer thickness less than 8 angstrom. The fourfold in-plane anisotropy is lost for the Fe layer thickness less than 8 angstrom. For the Fe layer thickness beyond 8 angstrom, it is found that the in-plane interface anisotropy is negative and that the in-plane volume anisotropy is identical to the magnetocrystalline anisotropy of bulk bcc Fe.
引用
收藏
页码：3761 / 3766
页数：6
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