Spin Glass State of Mn_xNi_<1-x>Sb: Synthesis in High Pressure and High Temperature Atmospheres

概要

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The solid solution between ferromagnetic MnSb and paramagnetic NiSb,Mn,Ni. ,Sb (0<,r<1.0), with Nips structure was synthesized in high pressureand high temperature atmospheres. The decomposition temperature was defer-mined to be 420 -480 K. The critical concentration of ferromagnetism wasobtained to be ,v.=O.65 at absolute zero. A new type spin glass state with doubletransition points, T... and T..., was found in a wide range of 0.2<,v<0.65 in theparamagnetic phase. The maximum transition point was estimated to be T...60 K and 7p..= 190 K. The electrical resistivity showed no anomaly correspondingto T s.. and 17..., and the temperature dependence in the spin glass state was givento be T' and T"' at lower temperature. Some discussions arc given for the experi-mental results.
社団法人日本物理学会の論文
1978-01-15