Identifying the dominant interstitial complex in dilute GaAsN alloys

T. Jen; G. Vardar; Yongqiang Wang; R. S. Goldman

doi:10.1063/1.4935857

Identifying the dominant interstitial complex in dilute GaAsN alloys

T. Jen
, G. Vardar
, Yongqiang Wang
, R. S. Goldman

Los Alamos National Laboratory

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

15 Scopus citations

Abstract

Significant composition-dependent incorporation of N into non-substitutional sites is often reported for dilute GaAsN alloys. To distinguish (N-N)_As, (N-As)_As, and (As_Ga-N_As) complexes, we compare Rutherford backscattering spectrometry and nuclear reaction analysis (NRA) spectra with Monte Carlo-Molecular Dynamics simulations along the [100], [110], and [111] directions. For the Monte Carlo simulation, we assume that (N-N)_As is aligned along the [111] direction, while (N-As)_As is aligned along the [010] direction. The measured channeling NRA spectra exhibit the highest (lowest) yield in the [111] ([100]) directions. Similar trends are observed for simulations of (N-As)_As, suggesting that (N-As)_As is the dominant interstitial complex in dilute GaAsN.

Original language	English
Article number	221904
Journal	Applied Physics Letters
Volume	107
Issue number	22
DOIs	https://doi.org/10.1063/1.4935857
State	Published - Nov 30 2015

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title = "Identifying the dominant interstitial complex in dilute GaAsN alloys",

abstract = "Significant composition-dependent incorporation of N into non-substitutional sites is often reported for dilute GaAsN alloys. To distinguish (N-N)As, (N-As)As, and (AsGa-NAs) complexes, we compare Rutherford backscattering spectrometry and nuclear reaction analysis (NRA) spectra with Monte Carlo-Molecular Dynamics simulations along the [100], [110], and [111] directions. For the Monte Carlo simulation, we assume that (N-N)As is aligned along the [111] direction, while (N-As)As is aligned along the [010] direction. The measured channeling NRA spectra exhibit the highest (lowest) yield in the [111] ([100]) directions. Similar trends are observed for simulations of (N-As)As, suggesting that (N-As)As is the dominant interstitial complex in dilute GaAsN.",

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T1 - Identifying the dominant interstitial complex in dilute GaAsN alloys

AU - Jen, T.

AU - Vardar, G.

AU - Wang, Yongqiang

AU - Goldman, R. S.

PY - 2015/11/30

Y1 - 2015/11/30

N2 - Significant composition-dependent incorporation of N into non-substitutional sites is often reported for dilute GaAsN alloys. To distinguish (N-N)As, (N-As)As, and (AsGa-NAs) complexes, we compare Rutherford backscattering spectrometry and nuclear reaction analysis (NRA) spectra with Monte Carlo-Molecular Dynamics simulations along the [100], [110], and [111] directions. For the Monte Carlo simulation, we assume that (N-N)As is aligned along the [111] direction, while (N-As)As is aligned along the [010] direction. The measured channeling NRA spectra exhibit the highest (lowest) yield in the [111] ([100]) directions. Similar trends are observed for simulations of (N-As)As, suggesting that (N-As)As is the dominant interstitial complex in dilute GaAsN.

AB - Significant composition-dependent incorporation of N into non-substitutional sites is often reported for dilute GaAsN alloys. To distinguish (N-N)As, (N-As)As, and (AsGa-NAs) complexes, we compare Rutherford backscattering spectrometry and nuclear reaction analysis (NRA) spectra with Monte Carlo-Molecular Dynamics simulations along the [100], [110], and [111] directions. For the Monte Carlo simulation, we assume that (N-N)As is aligned along the [111] direction, while (N-As)As is aligned along the [010] direction. The measured channeling NRA spectra exhibit the highest (lowest) yield in the [111] ([100]) directions. Similar trends are observed for simulations of (N-As)As, suggesting that (N-As)As is the dominant interstitial complex in dilute GaAsN.

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DO - 10.1063/1.4935857

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VL - 107

JO - Applied Physics Letters

JF - Applied Physics Letters

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Identifying the dominant interstitial complex in dilute GaAsN alloys

Abstract

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