Dresden 2020 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 40: Thermal, acoustic and transport properties

HL 40.5: Talk

Wednesday, March 18, 2020, 10:30–10:45, POT 151

Magneto-transport properties via exact solution of the linearised Boltzmann equation — •Francesco Macheda¹ and Nicola Bonini² — ¹King's College London, Strand, London, UK — ²King's College London, Strand, London, UK

Understanding and predicting the electrical and thermal transport in crystalline materials is crucial for the development of a new generation of electronic devices. In solids, transport coefficients can be conveniently calculated via the solution of the linearized Boltzmann transport equation (BTE), where the electronic and vibrational properties of the system, including electron-phonon interactions, are computed using density functional theory. Here we will present our recent developments to compute a wide range of transport coefficients in doped semiconductors and metals, such as Hall and drift mobilities, Seebeck and magneto-Seebeck coefficients and Lorenz number, also including the effects of phonon drag. We will show several examples of these calculations for semiconductors and metals that are of interest for technological applications. We will also discuss the application of this method to mono-layer graphene, whit a particular focus on magneto-transport effects.