Spin excitations in ferromagnetic manganites

Abstract

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.

2 pages, 1 figure

References in corpus (3)

• Double Exchange Alone Does Not Explain the Resistivity of $L{a}_{1-x}S{r}_{x}Mn{O}_3$
• Electronic Hamiltonian for Transition Metal Oxide Compounds
• Effective one-band electron-phonon Hamiltonian for nickel perovskites

Cited by in corpus (2)

• Spin Waves in Canted Phases: An Application to Doped Manganites
• Low-Temperature Spin Dynamics of Doped Manganites: roles of Mn-t2g and eg and O-2p states