INVESTIGADORES
ZYSLER Roberto Daniel
artículos
Título:
Monte Carlo simulation of Fe-Co amorphous nanoparticles magnetization
Autor/es:
B. MOLINA CONCHA; E. DE BIASI; R.D. ZYSLER
Revista:
PHYSICA B - CONDENSED MATTER
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2008 vol. 403 p. 390 - 393
ISSN:
0921-4526
Resumen:
Magnetization simulations of ~3 nm non-interacting Fe?Co ferromagnetic amorphous nanoparticles were made using Metropolis algorithm of Monte Carlo method. The results of core?shell model simulations describe the nanoparticles as a ferromagnetically ordered core and a disordered surface shell. They fairly reproduce the significant features observed in 3 nm Fe?Co?B nanoparticles experimental magnetization measurement at the same Fe?Co composition. They also provide a clear evidence of the role played by the local surface anisotropy and the surface?core exchange interaction in determining the magnetic properties of the nanoparticles.
