Dzyaloshinskii-Moriya interactions and adiabatic magnetization dynamics in molecular magnets

被引:68
|
作者
De Raedt, H
Miyashita, S
Michielsen, K
Machida, M
机构
[1] Univ Groningen, Ctr Mat Sci, Dept Appl Phys, NL-9747 AG Groningen, Netherlands
[2] Univ Tokyo, Grad Sch Engn, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
关键词
D O I
10.1103/PhysRevB.70.064401
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A microscopic model of the molecular magnet V-15 is used to study mechanisms for the adiabatic change of the magnetization in time-dependent magnetic fields. The effects of the Dzyaloshinskii-Moriya interaction, the most plausible source for the energy-level repulsions that lead to adiabatic changes of the magnetization, are studied in detail. We find that the energy-level repulsions that result from this interaction exhibit a strong dependence on the direction of the applied field. We also discuss the role of magnetic anisotropy in the molecule Mn-12-acetate.
引用
收藏
页码:064401 / 1
页数:12
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