Abstract
Using a full band description of electronic bandstructure, the Landauer approach to diffusive transport is mathematically related to the solution of the Boltzmann transport equation, and expressions for the thermoelectric parameters in both formalisms are presented. Quantum mechanical and semiclassical techniques to obtain from a full description of the bandstructure, E(k)E(k), the density of modes in the Landauer approach or the transport distribution in the Boltzmann solution are compared and thermoelectric transport coefficients are evaluated. Several example calculations for representative bulk materials are presented and the full band results are related to the more common effective mass formalism. Finally, given a full E(k)E(k) for a crystal, a procedure to extract an accurate, effective mass level description is presented.
Date of this Version
2010
DOI
10.1063/1.3291120
Published in:
J. Appl. Phys. 107, 023707 (2010)
Comments
Copyright (2010) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 107, 023707 (2010) and may be found at http://dx.doi.org/10.1063/1.3291120. The following article has been submitted to/accepted by Journal of Applied Physics. Copyright (2010) Changwook Jeong, Raseong Kim, Mathieu Luisier, Supriyo Datta and Mark Lundstrom. This article is distributed under a Creative Commons Attribution 3.0 Unported License.