98-34E

Nonphonon contributions to Raman light scattering are investigated for the pseudospin-electron model. To construct the polarizability operator, the microscopic approach is used, which is based on the operator expansion in terms of the Hubbard operators, using the electron transfer constant as a formal parameter of the expansion. Two different contributions to the dipole momentum are taken into account: one is connected with the nonhomeopolarity of filling of the electron states on a site, another - with the dipole momentum of the pseudospins.