Magnetism and electronic structure of bimetallic superlattices: Cr/Fe

J. H. Xu; A. J. Freeman; T. Oguchi

doi:10.1016/0304-8853(90)90081-Z

Magnetism and electronic structure of bimetallic superlattices: Cr/Fe

J. H. Xu, A. J. Freeman, T. Oguchi

Northwestern University

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The electronic and magnetic properties of Cr/Fe(110) coherent modulated superlattices (CMS) with various layer thicknesses were studied using the local spin density linear muffin-tin orbital method. In agreement with experiment, we find that the magnetic moments of the Fe layers are not significantly affected by the Cr layers and to have almost the same magnitude as in bulk bcc Fe, even in the case of an Fe monolayer in the Cr/Fe(110) CMS. Only a small moment (≤0.4μ_B) is found for the Cr layers aligned antiparallel to the n.n. Fe moments. The Cr moment alignment is determined by a delicate balance between the different magnetic interactions (Fe-Fe, Fe-Cr and Cr-Cr); the Cr magnetic moment always prefers to align antiparallel to the n.n. Fe and Cr moments.

Original language	English
Pages (from-to)	26-30
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	86
Issue number	1
DOIs	https://doi.org/10.1016/0304-8853(90)90081-Z
Publication status	Published - Apr 2 1990

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Magnetism and electronic structure of bimetallic superlattices: Cr/Fe",

abstract = "The electronic and magnetic properties of Cr/Fe(110) coherent modulated superlattices (CMS) with various layer thicknesses were studied using the local spin density linear muffin-tin orbital method. In agreement with experiment, we find that the magnetic moments of the Fe layers are not significantly affected by the Cr layers and to have almost the same magnitude as in bulk bcc Fe, even in the case of an Fe monolayer in the Cr/Fe(110) CMS. Only a small moment (≤0.4μB) is found for the Cr layers aligned antiparallel to the n.n. Fe moments. The Cr moment alignment is determined by a delicate balance between the different magnetic interactions (Fe-Fe, Fe-Cr and Cr-Cr); the Cr magnetic moment always prefers to align antiparallel to the n.n. Fe and Cr moments.",

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