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Anisotropies in ferromagnetic nanoparticles: simulation and experimental approach

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Ovidiu Crisan, M. Angelakeris, N.K. Flevaris, N. Sobal and M. Giersig

Editorial: Sensors and Actuators A: Physical, 106 (1-3), p.130-133, 2003.

Rezumat:

Magnetic behavior of the isolated ferromagnetic bimetallic nanoparticles is investigated in relation with the competition between exchange interaction and surface and bulk anisotropies. Experimental results on AgCo bimetallic nanoparticles are presented and correlated with Monte Carlo simulation of low temperature spin ordering. The nature of spin disorder at the surface, responsible for the reduction of the overall saturation magnetization is briefly discussed.

Cuvinte cheie: Bimetallic nanoparticles; Anisotropy; Monte Carlo simulation; Spin configuration