Scaling relations for magnetic nanoparticles

Autor:	Landeros, P., Escrig, J., Altbir, D., Laroze, D., Castro, J. d'Albuquerque e, Vargas, P.
Rok vydání:	2011
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science
Zdroj:	Physical Review B 71 (9), 094435 (2005)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.71.094435
Popis:	A detailed investigation of the scaling relations recently proposed by [J. d'Albuquerque e Castro, D. Altbir, J. C. Retamal, and P. Vargas, Phys. Rev. Lett. 88, 237202 (2002)] to study the magnetic properties of nanoparticles is presented. Analytical expressions for the total energy of three characteristic internal configurations of the particles are obtained, in terms of which the behavior of the magnetic phase diagram for those particles upon scaling of the exchange interaction is discussed. The exponent $\eta $ in scaling relations is shown to be dependent on the geometry of the vortex core, and results for specific cases are presented. Comment: 6 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1106.3382 Zobrazit plný text záznamu View this record from Arxiv