Thermal rectification in bulk materials with asymmetric shape

D. Sawaki, Wataru Kobayashi, Y. Moritomo, I. Terasaki

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Abstract

We investigate thermal rectification in a bulk material with a pyramid shape to elucidate shape dependence of the thermal rectification, and find that rectifying coefficient R is 1.35 for this shape, which is smaller than R=1.43 for a rectangular shape. This result is fully duplicated by our numerical calculation based on Fourier's law. We also apply this calculation to a given shape, and show a possible way to increase R depending on the shape.

Original languageEnglish
Article number081915
JournalApplied Physics Letters
Volume98
Issue number8
DOIs
Publication statusPublished - 2011 Feb 21
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Sawaki, D., Kobayashi, W., Moritomo, Y., & Terasaki, I. (2011). Thermal rectification in bulk materials with asymmetric shape. Applied Physics Letters, 98(8), [081915]. https://doi.org/10.1063/1.3559615