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arXiv · 0902.4839

Phonon Hall Effect in Four-Terminal Junctions

Lifa Zhang·Jian-Sheng Wang·Baowen Li
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Abstract

Using an exact nonequilibrium Green's function formulism, the phonon Hall effect for paramagnetic dielectrics is studied in a four-terminal device setting. The temperature difference in the transverse direction of the heat current is calculated for two-dimensional models with the magnetic field perpendicular to the plane. We find a surprising result that the square lattice does not have the phonon Hall effect while a honeycomb lattice has. This can be explained by symmetry. The temperature difference changes sign if the magnetic field is sufficiently large.

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Lifa Zhang, Jian-Sheng Wang, Baowen Li. 2009-11-23. Phonon Hall Effect in Four-Terminal Junctions. https://doi.org/10.1088/1367-2630%2F11%2F11%2F113038

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