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

材料科学技术（英文）, 2008, 24(5): 709-711.

^1, , ^2, , ^3,

1.Department of Basic Courses, Xi'an University of Science and Technology, Xi'an 710054, China

2.Department of Basic Courses, Xi'an University of Science and Technology, Xi'an 710054, China

3.Department of Basic Courses, Xi'an University of Science and Technology, Xi'an 710054, China

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

Li'an HAN ^1, , Huaping YANG ^2, , Yongjun HE ^3,

1.Department of Basic Courses, Xi'an University of Science and Technology, Xi'an 710054, China

2.Department of Basic Courses, Xi'an University of Science and Technology, Xi'an 710054, China

3.Department of Basic Courses, Xi'an University of Science and Technology, Xi'an 710054, China

Keywords： Lattice effect

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

参考文献