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Title: Bi-enhanced N incorporation in GaAsNBi alloys

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4984227· OSTI ID:1427392

We have examined the influence of bismuth (Bi) and nitrogen (N) fluxes on N and Bi incorporation during molecular-beam epitaxy of GaAs1-x-yNxBiy alloys. The incorporation of Bi is found to be independent of N flux, while the total N incorporation and the fraction of N atoms occupying non-substitutional lattice sites increase with increasing Bi flux. A comparison of channeling nuclear reaction analysis along the [100], [110], and [111] directions with Monte Carlo-Molecular Dynamics simulations indicates that the non-substitutional N primarily incorporate as (N-As)As interstitial complexes. We discuss the influence of Bi adatoms on the formation of arsenic-terminated [110]-oriented step-edges and the resulting enhancement in total N incorporation via the formation of additional (N-As)As.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1427392
Report Number(s):
LA-UR-18-21407; TRN: US1802856
Journal Information:
Applied Physics Letters, Vol. 110, Issue 24; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Cited By (6)

Surfactant-induced chemical ordering of GaAsN:Bi journal November 2018
Mapping the composition-dependence of the energy bandgap of GaAsNBi alloys journal August 2019
Lattice-constant and band-gap tuning in wurtzite and zincblende BInGaN alloys journal August 2019
Impact of Bi incorporation on the evolution of microstructure during growth of low-temperature GaAs:Bi/Ga(As,Bi) layers journal August 2019
First principles study of the structural, electronic and optical properties of epitaxial GaSb 1−x−y N y Bi x , lattice matched to GaSb journal September 2018
Composition Dependence of Structural and Electronic Properties of Quaternary InGaNBi journal May 2019

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