H. Kuriyama, M. Nohara, T. Sasagawa, K. Takubo, T. Mizokawa, K. Kimura, H. Takagi
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引用次数: 9
Abstract
We report high temperature thermoelectric properties of doped Delafossite oxide CuRh1-xMgxO2. The parent compound CuRhO2 is a band insulator and becomes metallic upon Mg doping for Rh. We found that polycrystalline CuRh1-xMgxO2 shows a large thermoelectric power S ~ +270 muV/K despite its low resistivity ~6 mOmegacm at high temperatures around 1000 K. Combining these with a thermal conductivity kappa ~ 80 mW/cm K, we estimate a large dimensionless figure of merit ZT 7sim; 0.15 at 1000 K
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