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arXiv · 1808.10131

Magneto-transport phenomena in p-doped diamond from first principles

Francesco Macheda·Nicola Bonini
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Abstract

We present a first-principles study of the magnetotransport phenomena in p-doped diamond via the exact solution of the linearized Boltzmann transport equation, in which the materials' parameters, including electron-phonon and phonon-phonon interactions, are obtained from density functional theory. This approach gives results in very good agreement with experimental data for Hall and drift mobilities, low- and high-field magnetoresistance and Seebeck coefficient, including the phonon-drag effect, in a range of temperatures and carrier concentrations. In particular, our results provide a detailed characterisation of the exceptionally high values for mobility and Seebeck coefficient, and predict a large magnetic field driven enhancement of the Seebeck coefficient, of up to 30% in a magnetic field of 40 kOe already at room temperature.

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Francesco Macheda, Nicola Bonini. 2018-08-30. Magneto-transport phenomena in p-doped diamond from first principles. https://doi.org/10.1103/physrevb.98.201201

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