Title :
Quasi-magnetoelastic aftereffect and induced magnetic anisotropy caused by absorbed hydrogen in rare-earth MgCu2-structure compounds
Author :
Korolyov, A.V. ; Gaviko, V.S. ; Mushnikov, N.V.
Author_Institution :
Inst. of Metal Phys., Ekaterinburg, Russia
fDate :
11/1/1993 12:00:00 AM
Abstract :
The new phenomenon, called the quasi-magnetoelastic aftereffect, is described. It is found that in Sm(Fe1-xCox)2 Hn (n~0.1) compounds that the fast change in orientation of the magnetization initiates a slow change in the sample size. The deformation of the sample can achieve the value of 10-13. The induced magnetic anisotropy and the magnetic annealing effect also are observed in these compounds. The results are explained using the model of the orientational ordering of hydrogen atoms, which is caused by the magnetostrictive deformation of the crystal lattice
Keywords :
cobalt alloys; ferromagnetic properties of substances; induced anisotropy (magnetic); iron alloys; magnetic aftereffect; magnetic annealing; magnetisation; magnetostriction; order-disorder transformations; permanent magnets; samarium alloys; Sm(Fe1-xCox)2Hx; absorbed H; induced magnetic anisotropy; magnetic annealing effect; magnetisation orientation; magnetostrictive deformation; orientational ordering; quasi-magnetoelastic aftereffect; rare-earth MgCu2-structure compounds; sample size; Distortion measurement; Hydrogen; Lattices; Magnetic anisotropy; Magnetic field measurement; Magnetic flux; Magnetization; Magnetostriction; Perpendicular magnetic anisotropy; Powders;
Journal_Title :
Magnetics, IEEE Transactions on
