Effect of mechanical stresses on the coercive force of the heterophase non-interacting nanoparticles

Details Effect of mechanical stresses on the coercive force of the heterophase non-interacting nanoparticles Effect of mechanical stresses on the coercive force of the heterophase non-interacting nanoparticles

2012-01-08

arxiv.org/abs/1201.1629v1

Advanced Materials Research Vols. 472-475 (2012) pp 2199-2202

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

ICMSE-2012, Xiamen, PRC

Scientific paper

10.4028/www.scientific.net/AMR.4

The theoretical analysis of the effect of uniaxial stress on the magnetization of the system of noninteracting nanoparticles is done by an example of heterophase particles of maghemite, epitaxially coated with cobalt ferrite. It is shown that stretching leads to a decrease in the coercive force $H_c$, and compression leads to its growth. The residual saturation magnetization $I_{rs}$ of nanoparticles does not change. With increasing of interfacial exchange interaction, coercive force varies nonmonotonically

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