Ab initio local-spin-density study of oscillatory exchange coupling and spin density waves in Fe/Cr multilayers

Author(s)
R Hafner, Daniel Spisak, Robert Lorenz, Juergen Hafner
Abstract

The interlayer exchange coupling and the magnetic structure of bcc (001) Fe/Cr multilayers have been studied using a first-principles self-consistent tight-binding linear-muffin-tin-orbital method in the atomic sphere approximation. A generalized gradient approximation to the exchange correlation potential was used. Antiferromagnetic coupling between neighboring Fe layers is found to be energetically favorable for an even number of monolayers in the Cr spacer, while ferromagnetic coupling is preferred for an odd number of monolayers. Also it is found that for certain Cr thicknesses incommensurate spin density waves with different wavelengths coexist. Π2000 American Institute of Physics.

Organisation(s)
Computational Materials Physics
External organisation(s)
Universität Wien
Journal
Journal of Applied Physics
Volume
87
Pages
5756-5758
No. of pages
3
ISSN
0021-8979
DOI
https://doi.org/10.1063/1.372512
Publication date
2000
Peer reviewed
Yes
Austrian Fields of Science 2012
1030 Physics, Astronomy
Portal url
https://ucris.univie.ac.at/portal/en/publications/ab-initio-localspindensity-study-of-oscillatory-exchange-coupling-and-spin-density-waves-in-fecr-multilayers(dee291bb-405e-421b-aaa7-d1d8be12af5b).html