%0 Journal Article
%T Spin excitations in ferromagnetic manganites
%A J. Loos
%A H. Fehske
%J Physics
%D 1998
%I arXiv
%R 10.1016/S0921-4526(98)01128-4
%X An effective one-band Hamiltonian for colossal-magnetoresistance (CMR) manganites is constructed and the spin excitations are determined. Fitting the experimental data by the derived spin-wave dispersion gives an e_g -electron hopping amplitude of about 0.2 eV in agreement with LDA band calculations.
%U http://arxiv.org/abs/cond-mat/9807294v1