On the origin of the giant magnetic moments of Fe and Co in Cs Films
Journal
Journal of Magnetism and Magnetic Materials
Journal Volume
240
Journal Issue
1-3
Pages
334-336
Date Issued
2002
Author(s)
Abstract
To unravel the mystery of the recently observed giant magnetic moments of Fe and Co in Cs films, orbital-polarization corrected relativistic spin density functional calculations have been performed. Unlike other transition-metal systems where the orbital magnetic moments are quenched, Fe and Co in Cs as well as in other alkali metals are found to possess a giant orbital moment of 2-3μB along with a large spin moment. Also, these free atom-like spin and orbital magnetic moments in Cs would not be squashed under large lattice contractions up to 23% around the impurity atoms. The induced moments on the host atoms are small. The results offer an explanation for the origin of the giant magnetic moments of Fe and Co in Cs films. © 2002 Elsevier Science B.V. All rights reserved.
Subjects
3d impurities; Alkali metals; Magnetic moments; Orbital moments
Other Subjects
Alkali metals; Crystal impurities; Crystal lattices; Fermi level; Magnetic thin films; Quenching; Transition metals; Giant magnetic moments; Orbital moments; Magnetic moments
Type
journal article