Magnetism of Rare-Earth Compounds with Non-Magnetic Crystal-Field Ground Levels
LIU Zhao-Sen
Department of Physics, Nanjing University of Information Science and Technology, Nanjing 210044
Magnetism of Rare-Earth Compounds with Non-Magnetic Crystal-Field Ground Levels
LIU Zhao-Sen
Department of Physics, Nanjing University of Information Science and Technology, Nanjing 210044
关键词 ：
75.10.Dg ,
75.10.-b
Abstract ： Among rare-earth compounds, there are many materials having non-magnetic crystal-field (CF) ground levels. To understand their magnetic behaviour at low temperatures, we study the effects of the CF levels and the Heisenberg-like coupling on the magnetic process of such a crystalline with mean-field and CF theory. It is found that the material can be magnetically ordered if the Heisenberg exchange is sufficiently strong. Additionally we obtain a condition for initial magnetic ordering, and derive a formula for estimating the Curie temperature if the ordering occurs.
Key words ：
75.10.Dg
75.10.-b
出版日期: 2007-01-01
:
75.10.Dg
(Crystal-field theory and spin Hamiltonians)
75.10.-b
(General theory and models of magnetic ordering)
引用本文:
LIU Zhao-Sen. Magnetism of Rare-Earth Compounds with Non-Magnetic Crystal-Field Ground Levels[J]. 中国物理快报, 2007, 24(1): 207-209.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2007/V24/I1/207
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