Interfacial anisotropy in magnetic superlattices

Large discrepancies between the dc magnetization and ferromagnetic resonance (FMR) magnetic anisotropy in Mo--Ni superlattices were observed. It is shown that higher-order anisotropy is present in both measurements and an analysis by which the first-order and second-order energies can be treated ind...

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Published in:Physical review letters 1987-07, Vol.59 (1), p.132-135
Main Authors: PECHAN, M. J, SCHULLER, I. K
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Magnetic anisotropy
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Materials science
Metals, semimetals and alloys
Other topics in magnetic properties and materials
Physics
Specific materials
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description Large discrepancies between the dc magnetization and ferromagnetic resonance (FMR) magnetic anisotropy in Mo--Ni superlattices were observed. It is shown that higher-order anisotropy is present in both measurements and an analysis by which the first-order and second-order energies can be treated independently is developed. The low-temperature results show a systematic divergence of the first-order FMR and dc anisotropy as the Ni-layer thickness decreases. It is shown that the source of the divergence is an enhanced surface anisotropy measured by FMR. Possible sources of this enhancement are discussed. 14 ref.--AA
doi_str_mv 10.1103/PhysRevLett.59.132
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Magnetic anisotropy
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Materials science
Metals, semimetals and alloys
Other topics in magnetic properties and materials
Physics
Specific materials
title Interfacial anisotropy in magnetic superlattices
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