Magnetization and ac susceptibility measurements have been performed on Tb_xY_1-xCo₂ compounds. Samples with x > 0.1 order ferromagnetically below room temperature. The cobalt magnetic moments in these compounds are induced by the internal magnetic field exerted by the terbium moments on the cobalt atoms. The ac susceptibility measurements indicate a change from second order to first order in the ferromagnetic transition for samples with x-values equal or smaller than 0.5. © 1983.

Franse J.J.M., Hien T.D., Ngan N.H.K., Duc N.H.

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Từ khóa : INTERMETALLICS; MAGNETISM - Ferromagnetism; MAGNETIZATION; TERBIUM; AC SUSCEPTIBILITY; YTTERBIUM COMPOUNDS