---
_id: '18470'
abstract:
- lang: eng
  text: Using ab initio computational methods, we study the structural and electronic
    properties of strained silicon, which has emerged as a promising technology to
    improve the performance of silicon-based metal-oxide-semiconductor field-effect
    transistors. In particular, higher electron mobilities are observed in n-doped
    samples with monoclinic strain along the [110] direction, and experimental evidence
    relates this to changes in the effective mass as well as the scattering rates.
    To assess the relative importance of these two factors, we combine density-functional
    theory in the local-density approximation with the GW approximation for the electronic
    self-energy and investigate the effect of uniaxial and biaxial strains along the
    [110] direction on the structural and electronic properties of Si. Longitudinal
    and transverse components of the electron effective mass as a function of the
    strain are derived from fits to the quasiparticle band structure and a diagonalization
    of the full effective-mass tensor. The changes in the effective masses and the
    energy splitting of the conduction-band valleys for uniaxial and biaxial strains
    as well as their impact on the electron mobility are analyzed. The self-energy
    corrections within GW lead to band gaps in excellent agreement with experimental
    measurements and slightly larger effective masses than in the local-density approximation.
article_number: '453125'
article_type: original
author:
- first_name: Mohammed
  full_name: Bouhassoune, Mohammed
  last_name: Bouhassoune
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
citation:
  ama: Bouhassoune M, Schindlmayr A. Ab initio study of strain effects on the quasiparticle
    bands and effective masses in silicon. <i>Advances in Condensed Matter Physics</i>.
    2015;2015. doi:<a href="https://doi.org/10.1155/2015/453125">10.1155/2015/453125</a>
  apa: Bouhassoune, M., &#38; Schindlmayr, A. (2015). Ab initio study of strain effects
    on the quasiparticle bands and effective masses in silicon. <i>Advances in Condensed
    Matter Physics</i>, <i>2015</i>, Article 453125. <a href="https://doi.org/10.1155/2015/453125">https://doi.org/10.1155/2015/453125</a>
  bibtex: '@article{Bouhassoune_Schindlmayr_2015, title={Ab initio study of strain
    effects on the quasiparticle bands and effective masses in silicon}, volume={2015},
    DOI={<a href="https://doi.org/10.1155/2015/453125">10.1155/2015/453125</a>}, number={453125},
    journal={Advances in Condensed Matter Physics}, publisher={Hindawi}, author={Bouhassoune,
    Mohammed and Schindlmayr, Arno}, year={2015} }'
  chicago: Bouhassoune, Mohammed, and Arno Schindlmayr. “Ab Initio Study of Strain
    Effects on the Quasiparticle Bands and Effective Masses in Silicon.” <i>Advances
    in Condensed Matter Physics</i> 2015 (2015). <a href="https://doi.org/10.1155/2015/453125">https://doi.org/10.1155/2015/453125</a>.
  ieee: 'M. Bouhassoune and A. Schindlmayr, “Ab initio study of strain effects on
    the quasiparticle bands and effective masses in silicon,” <i>Advances in Condensed
    Matter Physics</i>, vol. 2015, Art. no. 453125, 2015, doi: <a href="https://doi.org/10.1155/2015/453125">10.1155/2015/453125</a>.'
  mla: Bouhassoune, Mohammed, and Arno Schindlmayr. “Ab Initio Study of Strain Effects
    on the Quasiparticle Bands and Effective Masses in Silicon.” <i>Advances in Condensed
    Matter Physics</i>, vol. 2015, 453125, Hindawi, 2015, doi:<a href="https://doi.org/10.1155/2015/453125">10.1155/2015/453125</a>.
  short: M. Bouhassoune, A. Schindlmayr, Advances in Condensed Matter Physics 2015
    (2015).
date_created: 2020-08-27T20:45:37Z
date_updated: 2025-12-16T11:08:01Z
ddc:
- '530'
department:
- _id: '296'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1155/2015/453125
external_id:
  isi:
  - '000350656500001'
file:
- access_level: open_access
  content_type: application/pdf
  creator: schindlm
  date_created: 2020-08-28T09:42:44Z
  date_updated: 2020-08-30T14:45:29Z
  description: Creative Commons Attribution 3.0 Unported Public License (CC BY 3.0)
  file_id: '18540'
  file_name: 453125.pdf
  file_size: 560248
  relation: main_file
  title: Ab initio study of strain effects on the quasiparticle bands and effective
    masses in silicon
file_date_updated: 2020-08-30T14:45:29Z
has_accepted_license: '1'
intvolume: '      2015'
isi: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/3.0/
oa: '1'
publication: Advances in Condensed Matter Physics
publication_identifier:
  eissn:
  - 1687-8124
  issn:
  - 1687-8108
publication_status: published
publisher: Hindawi
quality_controlled: '1'
status: public
title: Ab initio study of strain effects on the quasiparticle bands and effective
  masses in silicon
type: journal_article
user_id: '16199'
volume: 2015
year: '2015'
...