Abstract: Perovskite\|type manganites La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃ were prepared by sol\|gel method. The structure, Curie temperature, magnetocalorie effect, and magnetoresistive effect of the sample were investigated by XRD, VSM, and MPMS. The results show that this material is a single\|phase structure of hexagonal perovskite without other mixed-phases, and the Curie temperature is 310 K. It is found that its magnetoresistance reaches 11.18％, and the maximum magnetic entropy change (ΔSM) reaches a value of 1.45 J/(kg·K) for La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃.

Key words: manganite, Curie temperature, magnetic entropy change, magnetoresistance