Low-temperature magnetization relaxation in magnetic molecular solids

被引：2
|
作者：
Vijayaraghavan, Avinash [1 ]
Garg, Anupam [1 ]
机构：
[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
来源：
ANNALS OF PHYSICS | 2013年 / 335卷
关键词：
Rate equation; Slow relaxation; Molecular magnet; QUANTUM RELAXATION; NANOMAGNET; SYSTEM; FE-8;
D O I：
10.1016/j.aop.2013.04.011
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The low temperature relaxation of the magnetization in molecular magnetic solids such as Fe-8 is studied using Monte Carlo simulations. A set of rate equations is then developed to understand the simulations, and the results are compared. The simulations show that the magnetization of an initially saturated sample deviates as a square-root in time at short times, as observed experimentally, and this law is derived from the rate equations analytically. (C) 2013 Elsevier Inc. All rights reserved.
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页码：1 / 20
页数：20
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