Relation between interfacial magnetism and spin-dependent scattering at non-ideal Fe/Cr and Fe/V interfaces

Research output: Contribution to journalArticleAcademicpeer-review

67 Citations (Scopus)

Abstract

First principles band structure calculations have been performed for (110) and (100) Fe/Cr and Fe/V superlattices with mixed monolayers at the interfaces, with atomic concentrations in the mixed layers throughout the entire concentration range. In addition, (211) and (111) superlattices with perfect interfaces have been studied. For Fe/V systems the moments at the interfaces depend strongly on the nearest neighbour environment. Conversely, Fe and Cr moments at Fe/Cr interfaces show almost no dependence on the nearest neighbour environment. We explain the latter behaviour as the result of competing antiferromagnetic exchange interactions at the interface, and discuss why this behaviour is crucial to the strong spin dependence of scattering at Fe/Cr interfaces, which gives rise to the very large giant magnetoresistance effect observed for Fe/Cr multilayers. Implications are given for the temperature dependence of the GMR ratio.

Original languageEnglish
Pages (from-to)341-353
Number of pages13
JournalJournal of Magnetism and Magnetic Materials
Volume151
Issue number3
DOIs
Publication statusPublished - 1 Jan 1995
Externally publishedYes

Fingerprint

Dive into the research topics of 'Relation between interfacial magnetism and spin-dependent scattering at non-ideal Fe/Cr and Fe/V interfaces'. Together they form a unique fingerprint.

Cite this