The role of nitrogen-nitrogen pairs in the deviation of the GaAsN lattice parameter from Vegard's law

S. Z. Wang, S. F. Yoon*, W. J. Fan, W. K. Loke, Tien Khee Ng, S. Z. Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The physical mechanisms, that accounted for the difference between the secondary ion mass spectroscopy (SIMS) nitrogen composition and the x-ray diffraction (XRD) nitrogen composition of the GaAsN materials, were discussed. It was found that as long as all the nitrogen atoms in the GaAsN alloys were located at the substitutional arsenic sites, Vegard's law remained valid. The results show that the N-N pairs were the predominant nitrogen-related defects. They cause deviation from the GaAsN lattice constant as predicted by Vegard's law.

Original languageEnglish (US)
Pages (from-to)2010-2014
Number of pages5
JournalJournal of Applied Physics
Volume96
Issue number4
DOIs
StatePublished - Aug 15 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'The role of nitrogen-nitrogen pairs in the deviation of the GaAsN lattice parameter from Vegard's law'. Together they form a unique fingerprint.

Cite this