The Structural and Magnetic Properties of La1-xcaxmno3 with X = 0.27 and 0.47

Abstract

We have studied the structural and magnetic properties for La1-xCaxMnO3 with x = 0.27 and 0.47 using neutron powder diffraction and magnetization measurements. At room and low temperature, all samples have the orthorhombic structure with space group Pnma. The sample x = 0.47 shows the antiferromagnetic mix a ferromagnetic with the magnetic moment and the Curie temperature are 1.30 µβ and 260 K, respectively while the sample x = 0.27 is a ferromagnetic with the magnetic momentand the Curie temperature are 3.10 µβ and 197 K, respectively