Title :
Morphological and magnetic properties of Ru, Os and Ir-substituted Fe4N
Author :
Andriamandroso, D. ; Matar, S. ; Demazeau, G. ; Fournès, L.
Author_Institution :
Lab. de Chimie due Solide du CNRS, Bordeaux I Univ., Talence, France
fDate :
1/1/1993 12:00:00 AM
Abstract :
Investigation of particulate materials for magnetic recording based on Fe4N substituted with Ru, Os, and Ir has allowed the role played by the substituent in the particle growth process of these particles to be addressed. The site of substitution within the nitride lattice is determined using Mossbauer resonance spectroscopy of 57 Fe. It has also been shown that such substitutions lead to very fine particles with superparamagnetic behavior
Keywords :
Mossbauer effect; coercive force; ferromagnetic properties of substances; iron compounds; magnetic properties of fine particles; particle size; superparamagnetism; Fe4N:Ir; Fe4NiOs; Fe4NiRu; Mossbauer resonance spectroscopy; coercive field; magnetic properties; magnetic recording; morphological properties; nitride lattice; particle growth process; particle size; site of substitution; superparamagnetic behavior; very fine particles; Hydrogen; Iron; Lattices; Magnetic field measurement; Magnetic materials; Magnetic properties; Magnetic recording; Magnetic resonance; Saturation magnetization; Spectroscopy;
Journal_Title :
Magnetics, IEEE Transactions on
