Lattice Effect on Magnetic and Electrical Properties of Ln2/3Pb1/3MnO3 (Ln=La, Pr, Nd) Films

材料科学技术（英）, 2008, 24(5): 709-711.

Lattice Effect on Magnetic and Electrical Properties of Ln2/3Pb1/3MnO3 (Ln=La, Pr, Nd) Films

Keywords： Lattice effect , films , Lattice , effect , Magn

Lattice effect on magnetic and electrical transport properties of Ln2/3Pb1/3MnO3 (Ln=La, Pr, Nd) films prepared by RF magnetron sputtering technique were investigated. With the decrease of the average ions radius , the structure of Ln2/3Pb1/3MnO3 (Ln=La, Pr, Nd) targets transit from the rhombohedral phase to the orthorhombic phase, and the Curie temperature reduces rapidly with the decrease of . The electrical properties show that films are the metallic state which can be fitted to the formula: ρ(T)= ρ0+ρ1T2+ρ2T4.5 at low temperatures. The temperature range of the ferromagnetic metallic state becomes narrow with the decrease of . The phenomenon can be explained by the lattice effect.

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Lattice Effect on Magnetic and Electrical Properties of Ln2/3Pb1/3MnO3 (Ln=La, Pr, Nd) Films

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