Photo-induced effect in the layered perovskite manganite La_(1.2)Sr_(1.8)Mn_(1.8)Co_(0.2)O_(7)  

作　　者：ZHANG Ruili1, DAI Jianming1, SONG Wenhai1, MA Yongqing1, YANG Jie1 & SUN Yuping1,2 1. Key Laboratory of Internal Friction and Defects in Solids, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China 2. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210008, China Correspondence should be addressed to Zhang Ruili (email: [e-mail]) Received September 1, 2003 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2004年第1期113-120,共8页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Key Basic Research,and the National Natural Science Foundation of China(Grant Nos.10174085&10074066);Anhui Province NSF(Grant Nos.00046115&03046201);the Fundamental Bureau,Chinese Academy of Sciences.

摘　　要：It is helpful to study the photo-induced effect in the perovskite manganites not only for elucidating the mechanism of colossal magnetoresistance (CMR) effect but also for potential applications in technology. The laser-induced effect in the Co doping layered perovskite manganites La1.2Sr1.8Mn1.8Co0.2O7 is studied in this paper and the obtained results are also compared with that gained in the Nd-doping manganites with cubic perovskite structure.It is helpful to study the photo-induced effect in the perovskite manganites not only for elucidating the mechanism of colossal magnetoresistance (CMR) effect but also for potential applications in technology. The laser-induced effect in the Co doping layered perovskite manganites La1.2Sr1.8Mn1.8Co0.2O7, is studied in this paper and the obtained results are also compared with that gained in the Nd-doping manganites with cubic perovskite structure.

关 键 词：laser  LAYERED PEROVSKITE manganites  photo-induced effect  spin-state. 

分 类 号：O482.3[理学—固体物理]