Structure and Magnetoelasticity of R(Zn{sub}(1-x)Fe{sub}x) (R=Tb,Dy) Polycrystalline Alloys

摘要

In the 1970s Morin et al [1] have shown that rare earth-Zn compounds having the CsCl-type structure possess large magnetostriction at low temperatures. Recently, Cullen et al. [2] have investigated the magnetisation and magnetostriction of Tb{sub}(1-x)Dy{sub}xZn single crystals and found a saturation magnetostriction of 5000×10{sup}(-6) at 77K and a magneto-mechanical coupling coefficient of 0.96. Although the effect of substituting other rare earth elements on the magnetostriction, anisotropy and the phase diagram of TbZn have been studied [3,4], we report on the little studied effect of substituting other transition metals on the magnetostriction and Curie temperature of R(Zn{sub}(1-x)Fe{sub}x) (R=Tb, Dy) polycrystalline alloys.