| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1625 - C8-1626 | |
| DOI | https://doi.org/10.1051/jphyscol:19888742 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1625-C8-1626
DOI: 10.1051/jphyscol:19888742
1 Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, U.S.A.
2 Physics and Astronomy Department, Northwestern University, Evanston, IL 60208, U.S.A.
J. Phys. Colloques 49 (1988) C8-1625-C8-1626
DOI: 10.1051/jphyscol:19888742
SURFACE MAGNETISM OF THE CLEAN Ni (111) SURFACE AND OF A Ni MONOLAYER ON Cu (111)
C. L. Fu1 et A. J. Freeman21 Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, U.S.A.
2 Physics and Astronomy Department, Northwestern University, Evanston, IL 60208, U.S.A.
Abstract
Results of highly precise all-electron local spin density FLAPW calculations on (i) a close-packed 7-layer Ni (111) slab and (ii) a p (1 x 1) Ni monolayer on Cu (111) are presented. For Ni (111), we find an enhancement of the magnetic moment for both the surface (to 0.63 µB) and sub-surface Ni layers (from a center layer value of 0.58 µB). In contrast, a slight decrease of the magnetic hyperfine field at the surface is obtained. Although the magnetism is suppressed for monolayer-Ni/Cu (111) due to sp (Cu) -d (Ni)interactions, we find that the Ni overlayer is not magnetically "dead" but has a sizable but reduced moment of 0.34 µB/atom.