Thermal rectification in the vicinity of a structural phase transition

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)


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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