Spectral properties of the Holstein double-exchange model and application to manganites


Calculations of one-electron spectral functions, optical conductivity and spin-wave energy in the Holstein double-exchange model are made using the manybody coherent potential approximation. Satisfactory agreement is obtained with angle-resolved photoemission results on La 1.2 Sr 1.8 Mn 2 O 7 and optical measurements on Nd 0.7 Sr 0.3 MnO 3 . A pseudogap in… (More)


5 Figures and Tables