Thermal rectification in the vicinity of a structural phase transition

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

    Research output: Contribution to journalArticle

    25 Citations (Scopus)

    Abstract

    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
    Volume5
    Issue number2
    DOIs
    Publication statusPublished - 2012 Feb

    Fingerprint

    rectifiers
    rectification
    temperature gradients
    Phase transitions
    Thermal conductivity
    thermal conductivity
    orbitals
    Temperature
    Oxides
    oxides
    coefficients
    electronics
    Hot Temperature

    ASJC Scopus subject areas

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

    Cite this

    Thermal rectification in the vicinity of a structural phase transition. / Kobayashi, Wataru; Sawaki, Daisuke; Omura, Tsubasa; Katsufuji, Takuro; Moritomo, Yutaka; Terasaki, Ichiro.

    In: Applied Physics Express, Vol. 5, No. 2, 027302, 02.2012.

    Research output: Contribution to journalArticle

    Kobayashi, W, Sawaki, D, Omura, T, Katsufuji, T, Moritomo, Y & Terasaki, I 2012, 'Thermal rectification in the vicinity of a structural phase transition', Applied Physics Express, vol. 5, no. 2, 027302. https://doi.org/10.1143/APEX.5.027302
    Kobayashi, Wataru ; Sawaki, Daisuke ; Omura, Tsubasa ; Katsufuji, Takuro ; Moritomo, Yutaka ; Terasaki, Ichiro. / Thermal rectification in the vicinity of a structural phase transition. In: Applied Physics Express. 2012 ; Vol. 5, No. 2.
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    AU - Terasaki, Ichiro

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