The effect of Fe substitution for Co at small concentrations (x ≤ 0.1) on magnetic properties of Gd(Co_1-xFe_x)₄B compounds has been studied. Upon substitution, the compensation temperature is nearly constant, the Curie temperature changes slightly whereas the magnetic anisotropy is modified significantly. The Fe-concentration dependence of the magnetic anisotropy has been analysed by means of the individual site anisotropy (ISA) model. The magnetic phase diagram of the Gd(Co_1-xFe_x)₄ compounds is discussed. © 1995.

Thang C.V., Thuy N.P., Liu J.P., Hien N.T., Hien T.D.

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Từ khóa : Annealing; Cobalt; Crystal structure; Ingots; Iron; Magnetic anisotropy; Magnetic properties; Melting; Phase diagrams; Substitution reactions; Temperature; X ray diffraction; Arc melting; Compensation temperature; Curie temperature; Gadolinium cobalt boron compound; Individual site anisotropy model; Gadolinium compounds