DocumentCode
1062486
Title
Surface and bulk spin waves in antiferromagnetic perovskites and their interaction with defects near surfaces
Author
Paczek, I.D. ; Chen, Niu-Niu ; Cottam, M.G.
Author_Institution
Dept. of Phys., Western Ontario Univ., London, Ont., Canada
Volume
27
Issue
6
fYear
1991
fDate
11/1/1991 12:00:00 AM
Firstpage
5435
Lastpage
5435
Abstract
The effect of a single magnetic impurity on the excitation spectrum of a semi-infinite Heisenberg antiferromagnet is studied by Green-function methods. The influence of bulk and surface spin waves on the impurity-mode energies is determined, and the theory is applied to perovskite-structure antiferromagnets
Keywords
Green´s function methods; Heisenberg model; antiferromagnetism; magnetic impurity interactions; magnetic surface phenomena; spin waves; Green-function methods; antiferromagnetic perovskites; bulk spin waves; excitation spectrum; impurity-mode energies; magnetic impurity; semi-infinite Heisenberg antiferromagnet; surface spin waves; Anisotropic magnetoresistance; Antiferromagnetic materials; Equations; Green function; Impurities; Lattices; Magnetic anisotropy; Magnetic materials; Perpendicular magnetic anisotropy; Surface waves;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.278869
Filename
278869
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