info:eu-repo/semantics/article
Unusual magnetic damping effect in a silver-cobalt ferrite hetero nano-system
Fecha
2015-02-09Registro en:
Sharma, Surender K.; Vargas, Jose Marcelo; Vargas, Nicolás Manuel; Castillo Sepúlveda, Sebastián; Altbir Drullinsky, Dora Rosa; et al.; Unusual magnetic damping effect in a silver-cobalt ferrite hetero nano-system; Royal Society of Chemistry; RSC Advances; 5; 22; 9-2-2015; 17117-17122
2046-2069
CONICET Digital
CONICET
Autor
Sharma, Surender K.
Vargas, Jose Marcelo
Vargas, Nicolás Manuel
Castillo Sepúlveda, Sebastián
Altbir Drullinsky, Dora Rosa
Kleber, Roberto Pirota
Zboril, Radek
Zoppellaro, Giorgio
Knobel, Marcelo
Resumen
The static and dynamic magnetic response of the newly synthesized CoFe2O4–Ag hetero nano-system showed significant enhancement in the effective energy barrier and reduction of the magnetic hardness of CoFe2O4 upon interaction with non-magnetic Ag as compared to neat CoFe2O4. The observed magnetic properties of CoFe2O4–Ag have been dissected in detail using the superparamagnetic Stoner–Wohlfarth and Neel–Arrhenius/Vogel–Fulcher models with the aid of micromagnetic simulations.