Abstract

Density functional theory is used to determine the electronic band structure and eigenstates of dilute InAsBi bulk materials. The results serve as input for fully microscopic many-body models calculating the composition and carrier density dependent losses due to Auger recombination. At low to intermediate carrier concentrations, the Auger loss coefficients are found to be in the range of 10-27cm6/s for a low Bi content and around 10-25cm6/s for compositions suitable for long wavelength emission. It is shown that due to the fact that in InAsBi, the spin-orbit splitting is larger than the bandgap for all Bi contents, the Bi-dependent increase in the spin-orbit splitting does not lead to a significant suppression of the losses. Instead, unlike in GaAsBi, a mostly exponential increase in the losses with the decreasing bandgap is found for all compositions.

Original languageEnglish (US)
Article number192106
JournalApplied Physics Letters
Volume112
Issue number19
DOIs
StatePublished - May 7 2018

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orbits
eigenvectors
retarding
density functional theory
coefficients
electronics
wavelengths

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Hader, J., Badescu, S. C., Bannow, L. C., Moloney, J. V., Johnson, S., & Koch, S. W. (2018). Auger losses in dilute InAsBi. Applied Physics Letters, 112(19), [192106]. https://doi.org/10.1063/1.5022775

Auger losses in dilute InAsBi. / Hader, J.; Badescu, S. C.; Bannow, L. C.; Moloney, J. V.; Johnson, Shane; Koch, S. W.

In: Applied Physics Letters, Vol. 112, No. 19, 192106, 07.05.2018.

Research output: Contribution to journalArticle

Hader, J, Badescu, SC, Bannow, LC, Moloney, JV, Johnson, S & Koch, SW 2018, 'Auger losses in dilute InAsBi', Applied Physics Letters, vol. 112, no. 19, 192106. https://doi.org/10.1063/1.5022775
Hader J, Badescu SC, Bannow LC, Moloney JV, Johnson S, Koch SW. Auger losses in dilute InAsBi. Applied Physics Letters. 2018 May 7;112(19). 192106. https://doi.org/10.1063/1.5022775
Hader, J. ; Badescu, S. C. ; Bannow, L. C. ; Moloney, J. V. ; Johnson, Shane ; Koch, S. W. / Auger losses in dilute InAsBi. In: Applied Physics Letters. 2018 ; Vol. 112, No. 19.
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