Synthesis and characterization of FePt/Au core-shell nanoparticles

Autor:	de la Presa, P., Multigner, M., Morales, M. P., Rueda, T., Fernandez-Pinel, E., Hernando, A.
Rok vydání:	2009
Předmět:	Condensed Matter - Materials Science
Zdroj:	Journal of Magnetism and Magnetic Materials 316, e753 (2007)
Druh dokumentu:	Working Paper
DOI:	10.1016/j.jmmm.2007.03.084
Popis:	In this work, the structural and magnetic properties of the gold-coated FePt nanoparticles synthesized from high-temperature solution phase are presented. The amount of gold was optimized to obtain most of the FePt particles coated. The particle diameter increases from 4 to 10 nm as observed by TEM. The magnetic properties are largely affected by the coating. At low temperature, the coercive field Hc of the coated nanoparticles decreases about three times respect to the uncoated and the blocking temperature reduces to the half. The changes of the magnetic behavior are discussed in terms of the effect of the gold atoms at the FePt core surface. Comment: JEMS 2006, conference paper
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0911.4785 Zobrazit plný text záznamu View this record from Arxiv