First-order phase transition in the ternary sulfide NiV2S4
نویسندگان
چکیده
Abstract We report our investigations of the electrical resistivity, Seebeck coefficient, thermal conductivity, and heat capacity on the ternary sulfide NiV2S4 as a function of temperature. All measured physical quantities exhibit pronounced anomalies at around 165 K, with a significant hysteresis of about 10 K. The results of electrical transport measurements show conventional metallic-like characteristics below and above the transition, indicative of the first-order metal–metal transition in NiV2S4. The anomalous features of NiV2S4 are compared to those of other thiospinels, and possible origins responsible for the present transition are provided.
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