Thermal rectification in bulk materials with asymmetric shape
arXiv:1102.4182 · doi:10.1063/1.3559615
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.
4 pages, 4 figures, accepted for publication in Appl. Phys. Lett
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