Influence of Gd-doping in La0.7Ca0.3MnO3 on its structural and magneto-electrical properties

► The effect of gadolinium doping on structural and electrical transport properties of La0.7Ca0.3MnO3 compounds. ► Magnetoresistance and resistivity are increased while the metal-insulator transition temperature is decreased. ► Phase separation model explains the transport properties well in the entire temperature range of measurements.