Relaxation Times in Magnetic Nanoparticles System and Memory Effects |
| M. Osaci, C. Abrudean and A. Berdie
Electric Engineering and Industrial IT Department, Faculty of Engineering Hunedoara, "Politehnica Timisoara" University Revolutiei no. 5, 331128 Hunedoara, Romania |
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| Received: 09 07 2007; Revised version: 18 10 2007; |
| Some memory effects in nanoparticle systems, similar to those seen in spin glass systems, may have important device applications, by tuning the interaction and the particle size. Recently, this subject provoked a special interest in nano-sciences. In this work we present a study, by simulation of the mode in which the behavior of a magnetic nanoparticle system is influenced by the superposition of the dimensions' distribution, the effective anisotropy constants and the disposal of nanoparticles in the sample, if we take into account the dipolar magnetic interaction. |
| DOI: 10.12693/APhysPolA.112.1203 PACS numbers: 72.15.Lh, 75.50.Tt, 78.20.Bh |