科研之友
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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.
- 出版日期2014-11
