摘要
A series of samples of La1-xTbxMnO3 (0≤x≤0.15) are prepared. The static and dynamic magnetizations of La1-xTbxMnO3 have been investigated. The results indicate that the spins with the short-range order are frozen into random direction at low enough temperatures which leads to the samples exhibiting the spin-glass like behavior. It is considered that the spin-glass like behavior originates from the competition between ferromagnetic double exchange among Mn3+ and Mn2+ and antiferromagnetic superex-change among Mn3+ and Mn3+,as well as Tb3+ and Tb3+.
A series of samples of La1-xTbxMnO3 (0≤x≤0.15) are prepared. The static and dynamic magnetizations of La1-xTbxMnO3 have been investigated. The results indicate that the spins with the short-range order are frozen into random direction at low enough temperatures which leads to the samples exhibiting the spin-glass like behavior. It is considered that the spin-glass like behavior originates from the competi-tion between ferromagnetic double exchange among Mn3+ and Mn2+ and antiferromagnetic superex-change among Mn3+ and Mn3+,as well as Tb3+ and Tb3+.
作者
ZHANG YingTang1,2,3,WANG ChunChang2,4,LIU WeiBin1,WANG Zhong3,LU HuiBin2 & CHEN ZiYu1 1 Department of Physics,Beijing University of Aeronautics and Astronautics,Beijing 100191
2 Institute of Physics & Center for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100190
3 School of Material Science & Engineering,Shaanxi University of Technology,Hanzhong 723003
4 Institute of Superconducting and Electronic Materials,Wollongong University,Northfield Ave,Gwynneville,NSW 2522,Australia
基金
Supported by the National Natural Science Foundation of China (Grant Nos. 10334070 and 50871007)
the Natural Science Foundation of Shaanxi University of Technology and Beijing Key Discipline
