Spin excitations in ferromagnetic manganites

Authors
Citation
J. Loos et H. Fehske, Spin excitations in ferromagnetic manganites, PHYSICA B, 261, 1999, pp. 801-802
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
261
Year of publication
1999
Pages
801 - 802
Database
ISI
SICI code
0921-4526(199901)261:<801:SEIFM>2.0.ZU;2-B
Abstract
An effective one-band Hamiltonian for colossal-magnetoresistance (CMR) mang anites is constructed and the spin excitations are determined. Fitting the experimental data by the derived spin-wave dispersion gives an e(g)-electro n hopping amplitude of about 0.2 eV in agreement with LDA band calculations . (C) 1999 Elsevier Science B.V. All rights reserved.