Heat Capacity and Kinetic Properties of La1-xSrxMnO3 Manganite

Specific heat, magnetization, magnetoresistance, thermopower and thermal conductivity of La_1-xSr_xMnO₃ (x = 0.15-0.2) ceramic are measured in the 77-350 K temperature range and under magnetic field up to 27 kOe. The obtained results are discussed within the framework of the model of a two-phase ferro-antiferromagnetic state with engaging of the additional mechanism of the charge carriers scattering on impurities and nonstoichiometric defects.