Magnetic Properties of (Cr_<1-y>Rh_y)_3Te_4

概要

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Magnetization and susceptibility are investigated on a solid solution betweenCr.Te. [a ferromagnetic (F) and canted ferromagnetic (CF) compoundl andRh.Te? [a Pauli paramagnetic one]. The ferromagnetic Curie temperattu'e T.decreases with increasing y, while the transition temperature T. between CF andF phases increases. In the higlxer y region, CF phase directly changes to theparamagnetic (P) phase at a transition temperature T... The transition tempera-turc T.. decreases with increasing y, and disappears at y=0.47.50.02 and T=55f15 K. An extra phase (Q) is found beyond CF one. Some characteristics ofspin glass or mictomagnetic states are observed in Q phase. Between 0.29-h0.03<y<0.47-[.0.02, Q phase changes to CF one as the ternperature increases.In the much higher y region, Q phase directly changes to P one. These features,together with the anomalous y-dependence of Weiss constant, are discussed onthe competition between the negative and the positive exchange interactions.
社団法人日本物理学会の論文
1983-05-15