Thermal rectification in the vicinity of a structural phase transition

Wataru Kobayashi, Daisuke Sawaki, Tsubasa Omura, Takuro Katsufuji, Yutaka Moritomo, Ichiro Terasaki

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    We have fabricated an oxide thermal rectifier made of La 1:98Nd 0:02CuO 4 and MnV 2O 4. By utilizing a jump of a thermal conductivity originated in the structural phase transition accompanied by the orbital ordering in MnV 2O 4, a rectifying coefficient of 1.14 has been achieved in the presence of a small temperature difference of 2 K. A thermal rectifier operating under a small temperature difference will play an important role for realizing heatcurrent control in electronic devices.

    Original languageEnglish
    Article number027302
    JournalApplied Physics Express
    Issue number2
    Publication statusPublished - 2012 Feb


    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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