Title :
Effects of Dy on spin-flop and magnetostriction in exchange-coupled Tb-Dy-Fe/Fe-Cu-Nb-Si-B multilayers
Author :
Shima, T. ; Takanashi, K. ; Fujimori, H.
Author_Institution :
Inst. of Mater. Res., Tohoku Univ., Sendai, Japan
fDate :
7/1/2001 12:00:00 AM
Abstract :
Magnetostrictive changes arising from magnetic transitions are investigated in Tb-Dy-Fe/Fe-Cu-Nb-Si-B multilayer systems. The spin-flop behavior of the magnetization is clearly observed in the samples with in-plane anisotropy. The magnetostriction measured in the longitudinal (transverse) direction shows an up and down (down and up) change associated with the spin-flop. It is found that the spin-flop field decreases and susceptibility increases with increasing the Dy content
Keywords :
boron alloys; copper alloys; dysprosium alloys; exchange interactions (electron); iron alloys; magnetic anisotropy; magnetic multilayers; magnetic susceptibility; magnetic transitions; magnetisation; magnetostriction; niobium alloys; silicon alloys; terbium alloys; Dy content; Tb-Dy-Fe/Fe-Cu-Nb-Si-B multilayer; TbDyFe-FeCuNbSiB; exchange coupling; giant magnetostriction; magnetic anisotropy; magnetic susceptibility; magnetic transition; magnetization; spin flop; Anisotropic magnetoresistance; Iron; Magnetic anisotropy; Magnetic field induced strain; Magnetic field measurement; Magnetic materials; Magnetic multilayers; Magnetostriction; Perpendicular magnetic anisotropy; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
