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Methods for anisotropic selection of final states in the full band ensemble Monte Carlo simulation framework
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.ORCID iD: 0000-0002-3790-0729
Responsible organisation
2002 (English)In: Simulation practice and theory, ISSN 1569-190X, Vol. 9, no 6-8, 321-332 p.Article in journal (Refereed) Published
Abstract [en]

In this paper we discuss different algorithms to select final states after scattering within the full band ensemble Monte Carlo (MC) simulation framework. Faster computers have made it possible to use more elaborate microscopic models for simulation of advanced semiconductor devices. Microscopic details like the band structures, the phonon dispersions and k-vector dependent deformation potentials are becoming accessible, which demand good algorithms for the selection of final states after scattering. The algorithm should also be adapted for a numerical representation of the band structure. Such an algorithm based on the rejection method is presented, which has been studied and compared in terms of efficiency and accuracy with two other algorithms for final state selection. The rejection algorithm is considered as suitable for anisotropic scattering mechanisms and when a relatively slow method is used for calculation of the wave-function overlap integral. It is shown that an accurate model of acoustic phonon scattering results in two characters of the process: one short-q process and one long-q process, very similar to a nonpolar optical intervalley process.

Place, publisher, year, edition, pages
2002. Vol. 9, no 6-8, 321-332 p.
Keyword [en]
Monte Carlo, scattering, algorithm, Carrier transport, Monte Carlo models, Quantum mechanical scattering
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-1677DOI: 10.1016/S0928-4869(01)00047-7ISI: 000176797400005Scopus ID: 2-s2.0-0037096032Local ID: 553OAI: oai:DiVA.org:miun-1677DiVA: diva2:26709
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2016-10-25Bibliographically approved

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Hjelm, MatsNilsson, Hans-Erik
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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
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  • vancouver
  • Other style
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  • de-DE
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  • en-US
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  • nn-NB
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