Dipolar interaction effects on the thermally activated magnetic relaxation of two-dimensional nanoparticle ensembles

Please use this identifier to cite or link to this item: http://essuir.sumdu.edu.ua/handle/123456789/2622

Or use following links to share this resource in social networks: Recommend this item

Title	Dipolar interaction effects on the thermally activated magnetic relaxation of two-dimensional nanoparticle ensembles
Authors	Denysov, Stanislav Ivanovych Liutyi, Taras Volodymyrovych Trohidou, K.N.
ORCID	http://orcid.org/0000-0001-9590-1001 http://orcid.org/0000-0001-8651-0463
Keywords	two-dimensional (2D) ensembles uniaxial ferromagnetic nanoparticle magnetic relaxation correlation effects
Type	Article
Date of Issue	2004
URI	http://essuir.sumdu.edu.ua/handle/123456789/2622
Publisher
License
Citation
Abstract	The thermally activated magnetic relaxation in two-dimensional lattices of dipolar interacting nanoparticles with large uniaxial perpendicular anisotropy is studied by a numerical method and within the mean-field approximation for comparison. The role that the correlation effects play in magnetic relaxation and the influence of lattice structure and bias magnetic field on the relaxation process are revealed. The correlations of the nanoparticle magnetic moments enhance relaxation on small times, delay it on large times, and reduce the steady-state absolute magnetization at nonzero bias fields. In a hexagonal lattice, magnetic relaxation on small times occurs faster and the steady-state absolute magnetization has the larger magnitude than in a square lattice with the same lattice spacing. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2622
Appears in Collections:	Наукові видання (ЕлІТ)