The compounds BaNiS2 and Ba1-xBixNiS2 (x=0.03, 0.07, 0.1) were prepared and their electrical resistivity, Seebeck coefficient, Hall coefficient and magnetic susceptibility were measured in the temperature range from 4.2 K to 280 K. BaNiS2 shows metallic behavior with a high anisotropy in resistivity, reflecting the layer structure, and Pauli paramagnetism with a weak temperature dependence. The Seebeck coefficient of BaNIS2 has a positive broad peak at about 200 K. Substituting of Bi for Ba site the majority charge-carrier changes from hole to electron. It is also noticed that the resistivity on the sample with x=0.07 shows a peculiar step-like change around 220 K, corresponding to the temperature at which the Seebeck coefficient has an abnormal behavior.
|ジャーナル||Journal De Physique. IV : JP|
|出版物ステータス||出版済み - 7 1993|
|イベント||Proceedings of the International Workshop on Electronic Crystals (ECRYS 93) - Carry-le-Rouet, Fr|
継続期間: 6 2 1993 → 6 4 1993
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)