Anisotropies in ferromagnetic nanoparticles: simulation and experimental approach

Magnetic behavior of the isolated ferromagnetic bimetallic nanoparticles is investigated in relation with the competition between exchange interaction and surface and bulk anisotropies. Experimental results on AgCo bimetallic nanoparticles are presented and correlated with Monte Carlo simulation of...

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Veröffentlicht in:	Sensors and actuators. A, Physical Physical, 2003-09, Vol.106 (1-3), p.130-133
Hauptverfasser:	Crisan, O., Angelakeris, M., Flevaris, N.K., Sobal, N., Giersig, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Anisotropy Bimetallic nanoparticles Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Fine-particle systems General equipment and techniques Instruments, apparatus, components and techniques common to several branches of physics and astronomy Magnetic properties and materials Monte Carlo simulation Physics Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Small particles and nanoscale materials Spin configuration Studies of specific magnetic materials
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Beschreibung
Zusammenfassung:	Magnetic behavior of the isolated ferromagnetic bimetallic nanoparticles is investigated in relation with the competition between exchange interaction and surface and bulk anisotropies. Experimental results on AgCo bimetallic nanoparticles are presented and correlated with Monte Carlo simulation of low temperature spin ordering. The nature of spin disorder at the surface, responsible for the reduction of the overall saturation magnetization is briefly discussed.
ISSN:	0924-4247 1873-3069
DOI:	10.1016/S0924-4247(03)00150-X