The Open UniversitySkip to content
 

Nonlinear stability of E centers in Si1-xGex: electronic structure calculations

Chroneos, A.; Bracht, H.; Jiang, C. and Uberuaga, B. P. (2008). Nonlinear stability of E centers in Si1-xGex: electronic structure calculations. Physical Review B, 78(19) p. 195201.

Full text available as:
[img]
Preview
PDF (Version of Record) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (304Kb) | Preview
DOI (Digital Object Identifier) Link: http://doi.org/10.1103/PhysRevB.78.195201
Google Scholar: Look up in Google Scholar

Abstract

Electronic structure calculations are used to investigate the binding energies of defect pairs composed of lattice vacancies and phosphorus or arsenic atoms (E centers) in silicon-germanium alloys. To describe the local environment surrounding the E center we have generated special quasirandom structures that represent random silicon-germanium alloys. It is predicted that the stability of E centers does not vary linearly with the composition of the silicon-germanium alloy. Interestingly, we predict that the nonlinear behavior does not depend on the donor atom of the E center but only on the host lattice. The impact on diffusion properties is discussed in view of recent experimental and theoretical results.

Item Type: Journal Article
Copyright Holders: 2008 The American Physical Society
ISSN: 1550-235X
Academic Unit/Department: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 35176
Depositing User: Alexander Chroneos
Date Deposited: 07 Nov 2012 12:05
Last Modified: 02 Aug 2016 16:46
URI: http://oro.open.ac.uk/id/eprint/35176
Share this page:

Altmetrics

Scopus Citations

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

▼ Automated document suggestions from open access sources

Actions (login may be required)

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk