Large thermal Hall coefficient in bismuth

Details Large thermal Hall coefficient in bismuth Large thermal Hall coefficient in bismuth

2012-03-10

arxiv.org/abs/1203.2237v1

Appl. Phys. Lett. 100, 011903 (2012)

Physics

Condensed Matter

Materials Science

4pages, 3 figures

Scientific paper

We present a systematical study of thermal Hall effect on a bismuth single crystal by measuring resistivity, Hall coefficient, and thermal conductivity under magnetic field, which shows a large thermal Hall coefficient comparable to the largest one in a semiconductor HgSe. We discuss that this is mainly due to a large mobility and a low thermal conductivity comparing theoretical calculations, which will give a route for controlling heat current in electronic devices.

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