Theoretical Predictions for Magnetic Interface Anisotropy

J. M. MacLaren, R. H. Victora

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Electronic structure calculations have been used to predict the magnetic anisotropy of Co/Pd, Co/Pt, Co/Cu, Fe/Pt and Fe/Ag superlattices. In the case of Co/Pd and Co/Pt, the magnetic anisotropy has been analyzed as a deconvolution of volume and interface contributions. The surprising experimental result of an orientation independent interface anisotropy of 0.63±0.05 ergs/cm2for Co/Pd superlattices is also predicted by theory. The theoretical interface anisotropy was found to be 0.62±0.06 ergs/cm2, in close agreement with experiment. This result is not universally observed, and based upon calculations for strained and unstrained superlattices appears to be a consequence of the degree of strain found in the Co/Pd system. A symmetry derived model based upon summing L(M.R)2pair interactions accurately reproduces the observed anisotropy, and the dependence upon atomic constituents, strain and growth direction.

Original languageEnglish (US)
Pages (from-to)3034-3039
Number of pages6
JournalIEEE Transactions on Magnetics
Volume29
Issue number6
DOIs
StatePublished - Nov 1993

Bibliographical note

Funding Information:
JMM acknowledges partial support from the Louisiana Education Quality Support Fund under grant LEQSF (1991-

Fingerprint Dive into the research topics of 'Theoretical Predictions for Magnetic Interface Anisotropy'. Together they form a unique fingerprint.

Cite this