Correlation Between Magnetovolume and Colossal Magnetoresistance Effects in Terbium Doped La-Sr-Mn-O Perovskite  

作　　者：WU Jian ZHANG Shi-Yuan YIN Shi-Long CAO Qing-Qi GU Kun-Ming DU You-Wei 吴坚;张世远;殷士龙;曹庆琪;谷坤明;都有为(Mathematics and Physics Department,Hohai University,Nanjing 210098;National Laboratory of Solid State Microstructure Physics and Department of Physics,Nanjing University,Nanjing 210093)

机构地区：[1]Mathematics and Physics Department,Hohai University,Nanjing 210098 [2]National Laboratory of Solid State Microstructure Physics and Department of Physics,Nanjing University,Nanjing 210093

出　　处：《Chinese Physics Letters》2000年第5期373-375,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.19890310(4).

摘　　要：(La_(0.67)Tb_(0.33))_(2/3)Sr_(1/3)MnO_(3) has been studied in order to probe mechanisms responsible for the giant magnetore-sistonce ratios and the lattice effect in this kind of compound.The experiment has shown a strong connection between the magnetotransport and magnetovolume properties.An applied magnetic Geld not only gives rise to a large negative magnetoresistance(-900%)but also produces two different magnetovolume effects which reflect two different magnetostriction mechanisms in the compound.

关 键 词：properties. compound. MAGNETORESISTANCE 

分 类 号：O61[理学—无机化学]