Magnetic and magnetostrictive properties of Tb-Dy-Ho-Fe-Co alloys

摘要

In this work, the structural and magnetic properties of single-phase Tb_xDy_yHo_z(Fe,Co)_2(x + y + z = 1) alloys have been investigated by means of X-ray diffraction, ~(57)FeMossbauerspectroscopy, magnetization measurements and a standard strain gage technique. Themagnetostriction of Tb_xDy_yHo_z(Fe,Co)_2was examined against an applied magnetic field up to 10kOe in 80 - 400 K temperature range. The Co-containing compounds are found to have high valuesof magnetostrictive susceptibility due to compensation of magnetic anisotropy in both the rare-earthand 3d transition metals sublattices