Thermal rectification in the vicinity of a structural phase transition

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

doi:10.1143/APEX.5.027302

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 journal › Article

26 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 language	English
Article number	027302
Journal	Applied Physics Express
Volume	5
Issue number	2
DOIs	https://doi.org/10.1143/APEX.5.027302
Publication status	Published - 2012 Feb

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ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Cite this

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, 5(2), [027302]. https://doi.org/10.1143/APEX.5.027302

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Access to Document

10.1143/APEX.5.027302