Research Progress on Colossal Anisotropic Magnetoresistive Effect  

作　　者：Run-Wei Li 

机构地区：[1]Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201

出　　处：《Science Foundation in China》2009年第1期39-42,共4页中国科学基金（英文版）

基　　金：supported by National Natural Science Foundation of China(10874192)

摘　　要：Perovskite manganites show exotic functionalities due to the coupling between spin, charge, orbital and lattice, such as metal-insulator transition, colossal magnetoresistance （ CMR ） , charge-orbital order and phase separation. Recently, an extraordinary anisotropic magnetoresistance （ AMR ） has been observed in perovskite manganite single crystals. The AMR value is about 2 orders larger than that of the conventional 3E transition metals and alloys, which is attributed to tunable metal-insulator transition temperature modulated by the magnetic field. This result provides a new route for exploring novel AMR materials and their applications.Perovskite manganites show exotic functionalities due to the coupling between spin,charge,orbital and lattice,such as metal-insulator transition, colossal magnetoresistance(CMR),charge-orbital order and phase separation.Recently,an extraordinary anisotropic magnetoresistance(AMR) has been observed in perovskite manganite single crystals. The AMR value is about 2 orders larger than that of the conventional 3d transition metals and alloys, which is attributed to tunable metal-insulator transition temperature modulated by the magnetic field.This result provides a new route for exploring novel AMR materials and their applications.

关 键 词：perovskite manganite METAL-INSULATORTRANSITION AMR 

分 类 号：O484.43[理学—固体物理] TM27[理学—物理]