Dzyaloshinskii-Moriya interactions and adiabatic magnetization dynamics in molecular magnets

被引：69
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
来源：
PHYSICAL REVIEW B | 2004年 / 70卷 / 06期
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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