VIBRONIC, OPTICAL, AND MAGNETIC EXCITATIONS AROUND SOLITONS IN A ONE-DIMENSIONAL 2-BAND PEIERLS-HUBBARD MODEL

Nonlinear doping states in a charge-density-wave background and those in a spin-density-wave background are investigated through their respo nse functions in vibronic, optical and magnetic channels in a one-dime nsional two-band Peierls-Hubbard model. A random phase approximation i s used for their analysis on the basis of totally unrestricted Hartree -Fock solutions. Doping-induced changes of excitation spectra in these different channels are distinctive to the nature of individual doping states.