The Influence of Deposition Temperature on the Epitaxial Growth of La_(0.7)Ca_(0.3)MnO_3 Thin Film

作     者：YANG Shao-bo,ZHANG Ao(Beijing Institute of Graphic Communication,Beijing 102600,China) 

出 版 物：《北京印刷学院学报》 (Journal of Beijing Institute of Graphic Communication)

年 卷 期：2011年第19卷第4期

页      面：72-75页

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：北京市属高等学校人才强教计划资助项目(PHR201107145) 

主　　题：epitaxial polycrystalline thin film electric and magnetic phase transition 

摘      要：The growth conditions of La0.7Ca0.3MnO3(LCMO) epitaxial thin film are *** results indicate that the deposition temperature plays a crucial role on the growth mode of LCMO thin *** is an optimal deposition temperature,To,for the epitaxial growth of LCMO thin *** only at the To,the real epitaxial LCMO thin film can be *** the deposition temperature deviates from the To,the thin film tends to be polycrystalline,although it orientes growth along a certain direction(a or c axis).Moreover,the experimental results show that just only for the epitaxial thin film the ferromagnetic-paramagnetic transition temperature(*** Courier temperature Tc) equals to the metal-semiconductor transition temperature(Tp).The ferromagnetic state shows metallicity and the paramagnetic state exhibits semiconducting character.