Title :
Different contributions of the two cobalt sites to the magnetocrystalline anisotropy of YCo5and related compounds
Author :
Déportes, J. ; Givord, D. ; Schweizer, J. ; Tasset, F.
Author_Institution :
C.N.R.S. Grenoble-cedex, France
fDate :
11/1/1976 12:00:00 AM
Abstract :
The properties of permanent magnets based on RCo5compounds arise from their strong uniaxial anisotropy. The anisotropy field at 4.2 K in YCo5is about 200 kOe. A polarized neutron study of YCo5revealed a very large orbital contribution to the magnetic moment on the CoI(2c) site, which indicates that the major part of the cobalt anisotropy originates from this site. The variations of the magnetic anisotropy of YCo5which occur when different substitutional atoms (Ni, Fe, Co pairs) modify the ideal structure, are in agreement with this view.
Keywords :
Magnetic anisotropy; Permanent magnet materials; Anisotropic magnetoresistance; Cobalt; Iron; Magnetic anisotropy; Magnetic moments; Magnetic properties; Neutrons; Permanent magnets; Perpendicular magnetic anisotropy; Polarization;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1976.1059185
