title: Spin-charge and spin-orbital coupling effects on spin dynamics in ferromagnetic manganites.
abstract: Correlation-induced spin-charge and spin-orbital coupling effects on spin dynamics in ferromagnetic manganites are calculated with realistic parameters in order to provide a quantitative comparison with experimental results for spin stiffness, magnon dispersion, magnon damping, anomalous zone-boundary magnon softening and Curie temperature. The role of orbital degeneracy, orbital ordering and orbital correlations on spin dynamics in different doping regimes is highlighted.
authors.affiliation: Department of Physics, Indian Institute of Technology, Kanpur 208016, India.
authors.forename: Dheeraj Kumar
authors.initials: DK
authors.lastname: Singh
authors.forename: Bhaskar
authors.initials: B
authors.lastname: Kamble
authors.forename: Avinash
authors.initials: A
authors.lastname: Singh