Dynamics in Superspin Glass Systems

被引：6
|
作者：
Peddis, Davide [1 ]
Vasilakaki, Marianna [2 ]
Trohidou, K. N. [2 ]
Fiorani, D. [1 ]
机构：
[1] CNR, Inst Struttura Mat, I-00133 Rome, Italy
[2] Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol, Inst Adv Mat Physicochem Proc Nanotechnol & Micro, Athens 15310, Greece
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2014年 / 50卷 / 11期
关键词：
Exchange bias (EB); out-of-equilibrium dynamics; superspin glass (SSG);
D O I：
10.1109/TMAG.2014.2327384
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The out-of-equilibrium dynamical properties of two very different superspin glass systems are discussed: 1) MnFe2O4 nanoparticles, in powder form, with very strong dipolar interactions and 2) a system consisting of a film of Co particles dispersed (5%-10% volume filling fraction) in an Mn matrix, where interparticle interactions are mainly mediated by the matrix. In the latter system, the influence of interface exchange coupling between the ferromagnetic particles and the antiferromagnetic matrix on the out-of-equilibrium dynamics is discussed.
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收藏
页数：4
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