Thermal conductivity of thermoelectric rhodium oxides measured by a modified harman method

Wataru Kobayashi, Wataru Tamura, Ichiro Terasaki

    研究成果: Article査読

    6 被引用数 (Scopus)

    抄録

    We report the thermal conductivity κ and figure of merit Z of thermoelectric rhodium oxides using a modified Harman method. κ and Z are obtained to be 30 mW/(cm·K) and 1 × 10-4 K-1 at 200 K, respectively, which are comparable to those of thermoelectric-layered cobalt oxides. In particular, Z = 2.3 × 10-4 K-1 is found in the pseudo-one-dimensional Ba1.2Rh8O16 at 75 K, which is the second-best value among oxides below 300 K. We show that the modified Harman method is a convenient and powerful tool for investigating the thermoelectric properties of small crystals.

    本文言語English
    論文番号074606
    ジャーナルJournal of the Physical Society of Japan
    77
    7
    DOI
    出版ステータスPublished - 2008 7

    ASJC Scopus subject areas

    • 物理学および天文学(全般)

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