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

^*この研究の対応する著者

先進理工学部

研究成果: Article › 査読

45 被引用数 (Scopus)

抄録

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.

本文言語	English
論文番号	027302
ジャーナル	Applied Physics Express
巻	5
号	2
DOI	https://doi.org/10.1143/APEX.5.027302
出版ステータス	Published - 2012 2月

ASJC Scopus subject areas

工学（全般）
物理学および天文学（全般）

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10.1143/APEX.5.027302

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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.",

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AU - Kobayashi, Wataru

AU - Sawaki, Daisuke

AU - Omura, Tsubasa

AU - Katsufuji, Takuro

AU - Moritomo, Yutaka

AU - Terasaki, Ichiro

PY - 2012/2

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N2 - 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.

AB - 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.

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Thermal rectification in the vicinity of a structural phase transition

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