Title :
Analysis of the magnetic transitions of RE-TM ferrimagnetic compounds in high magnetic fields
Author :
Asti, G. ; Solzi, M. ; Albertini, F. ; Bolzoni, F.
Author_Institution :
Dipartimento di Fisica, Parma Univ., Italy
fDate :
3/1/1994 12:00:00 AM
Abstract :
On the basis of a phenomenological model of the anisotropic ferrimagnet, the analysis of the critical behavior of ferrimagnetic RE-TM compounds in dependence on the applied field and temperature has been carried out. The model has been applied to some RE2TM 17 intermetallic compounds in which the presence of the intermediate saturation has been experimentally verified by utilizing the SPD technique. The best-fit of the measured magnetization curves allows the achievement of information on the RE-TM exchange and on the RE and TM anisotropy and to predict the occurrence of spin-flop transitions at higher applied fields
Keywords :
exchange interactions (electron); ferrimagnetic properties of substances; magnetic anisotropy; magnetic transitions; magnetisation; rare earth alloys; spin dynamics; transition metal alloys; RE-TM exchange; RE-TM ferrimagnetic compounds; RE2TM17 intermetallic compounds; SPD technique; anisotropic ferrimagnet; anisotropy; applied field; critical behavior; high magnetic fields; intermediate saturation; magnetic transitions; magnetization; phenomenological model; spin-flop transitions; Anisotropic magnetoresistance; Equations; Ferrimagnetic materials; Magnetic analysis; Magnetic anisotropy; Magnetic field measurement; Magnetic fields; Perpendicular magnetic anisotropy; Saturation magnetization; Temperature dependence;
Journal_Title :
Magnetics, IEEE Transactions on
