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; T. K. Ng; S. Z. Wang

doi:10.1063/1.1767614

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, T. K. Ng, S. Z. Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 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 language	English (US)
Pages (from-to)	2010-2014
Number of pages	5
Journal	Journal of Applied Physics
Volume	96
Issue number	4
DOIs	https://doi.org/10.1063/1.1767614
State	Published - Aug 15 2004
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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

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.",

author = "Wang, {S. Z.} and Yoon, {S. F.} and Fan, {W. J.} and Loke, {W. K.} and Ng, {T. K.} and Wang, {S. Z.}",

note = "Funding Information: The authors would like to express their appreciation to R. Liu and A. Wee from the Department of Physics, National University of Singapore, for the measurements. The authors would also like to acknowledge Singapore-Massachusetts Institute of Technology Alliance for the financial support.",

year = "2004",

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doi = "10.1063/1.1767614",

language = "English (US)",

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T1 - The role of nitrogen-nitrogen pairs in the deviation of the GaAsN lattice parameter from Vegard's law

AU - Wang, S. Z.

AU - Yoon, S. F.

AU - Fan, W. J.

AU - Loke, W. K.

AU - Ng, T. K.

AU - Wang, S. Z.

N1 - Funding Information: The authors would like to express their appreciation to R. Liu and A. Wee from the Department of Physics, National University of Singapore, for the measurements. The authors would also like to acknowledge Singapore-Massachusetts Institute of Technology Alliance for the financial support.

PY - 2004/8/15

Y1 - 2004/8/15

N2 - 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.

AB - 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.

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JO - Journal of Applied Physics

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

Abstract

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