Comparison of wurtzite atomistic and piezoelectric continuum strain models: Implications for the electronic band structure

D. Barettin, S. Madsen, B. Lassen, Morten Willatzen

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

We compare continuum and atomistic models for the electromechanical fields in wurtzite GaN/AlN quantum dots and their relative impact on the electronic band structure. Qualitative agreement between atomistic strain calculations and continuum elastic models for a wurtzite hexagonal quantum-dot structure is demonstrated; however, significant quantitative discrepancies of up to 100 meV are observed. A smaller difference of approximately 15 meV is found between fully coupled and semi-coupled continuum models.
Original languageEnglish
JournalSuperlattices and Microstructures
Volume47
Issue number1
Pages (from-to)134-138
ISSN0749-6036
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event9th International Conference on Physics of Light-Matter Coupling in Nanostructures (PLMCN 2009) - Lecce , Italy
Duration: 1 Jan 2009 → …
Conference number: 9

Conference

Conference9th International Conference on Physics of Light-Matter Coupling in Nanostructures (PLMCN 2009)
Number9
CountryItaly
CityLecce
Period01/01/2009 → …

Keywords

  • Wurtzite
  • Piezoelectric
  • Continuum
  • Valence force field
  • Electronic band structure

Fingerprint Dive into the research topics of 'Comparison of wurtzite atomistic and piezoelectric continuum strain models: Implications for the electronic band structure'. Together they form a unique fingerprint.

Cite this