THE NI-GAMMA-FE INTERFACE - HYPERFINE MAGNETIC-FIELD AND MAGNETIC-ANISOTROPY

被引:8
作者
COLOMBO, E
DONZELLI, O
FRATUCELLO, GB
RONCONI, F
机构
[1] Dipartimento di Fisica, Università di Ferrara, I-44100 Ferrara
关键词
D O I
10.1016/0304-8853(91)90408-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Conversion Electrons Mossbauer Spectroscopy (CEMS) is used to study the magnetic polarization state and the magnetic anisotropy of ultrathin Fe/Ni films in multilayer samples with two, one and any Fe/Ni interface. The analysis of the distribution function of the hyperfine fields indicates a magnitude of 34 T for the Fe/Ni interface field and gives evidence of the existence of a pure, highly susceptible gamma-Fe phase. Results corresponding to intermixed regions suggest enhanced hyperfine fields and magnetic moments in local environments with more than 6 and up to 9 nearest Fe neighbor atoms, and low fields in Fe sites with 10-11 Fe neighbors. Out-of-plane perpendicular anisotropy is found only in samples having an Fe/Ni interface.
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收藏
页码:597 / 600
页数:4
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