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cond-mat.str-el2002
Spectral Function Analysis on Spin Dynamics in Double-Exchange Systems with Randomness
Yukitoshi Motome, Nobuo Furukawa
Spin excitation spectrum is studied in the double-exchange model with randomness. Applying the spin wave approximation and the spectral function analysis, we examine excitation ene…
cond-mat.str-el2002★ 3 cited
Spin-wave Hamiltonian in double-exchange systems
Nobuo Furukawa, Yukitoshi Motome
A simple derivation of the effective spin-wave Hamiltonian for a double-exchange system with infinitely large Hund's-rule coupling is demonstrated. The formalism can be applied to…