Title :
Static magnetic properties at low and medium field of gamma-Fe2O3 particles with controlled dispersion
Author :
Cherkaoui, R. ; Nogues, M. ; Dormann, J.L. ; Prene, P. ; Tronc, E. ; Jolivet, J.P. ; Fiorani, D. ; Testa, A.M.
Author_Institution :
Lab. de Magnetisme, CNRS, Meudon, France
fDate :
3/1/1994 12:00:00 AM
Abstract :
γ-Fe2O3 small particles (⩽10 nm) with various dispersion rates were studied by static magnetic measurements at low and medium applied fields. The results raise various questions concerning the determination of the non-relaxing magnetic moment and of the particle volume, the role of the particle surface and interactions
Keywords :
disperse systems; iron compounds; magnetic materials; magnetic moments; magnetic variables measurement; magnetisation; particle size; transmission electron microscope examination of materials; γ-Fe2O3 small particles; 10 nm; Fe2O3; TEMEMAT; controlled dispersion; dispersion rates; gamma-Fe2O3 particles; low field; medium field; nonrelaxing magnetic moment; particle surface; particle volume; static magnetic measurements; static magnetic properties; transmission electron microscopy; Dispersion; Magnetic field measurement; Magnetic moments; Magnetic particles; Magnetic properties; Magnetic recording; Magnetic variables measurement; Magnetization; Temperature dependence; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
