DOI: 10.1063/1.338270. Determination of the (100) InAs/GaSb heterojunction valence-band discontinuity by x-ray photoemission core level spectroscopy

Determination of the (100) InAs/GaSb heterojunction valence-band discontinuity by x-ray photoemission core level spectroscopy

10.1063/1.338270

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The valence-band discontinuity ΔEv has been determined for the (100) InAs/GaSb system by x-ray photoemission core level spectroscopy. For 20 Å of InAs on GaSb we find that ΔEv=0.53 eV. The reverse structure, consisting of a 20-Å layer of GaSb on InAs, gave a measured value of ΔEv=0.48 eV. Since the difference in these two values lies within our experimental uncertainty, we report an average offset of 0.51±0.1 eV. The large value of the valence-band discontinuity in this system shows the band lineup to be of the broken gap variety with the InAs conduction-band energy lying below that of the GaSb valence band. This result is in good agreement with theoretical predictions.

Bibliography

Gualtieri, G. J., Schwartz, G. P., Nuzzo, R. G., Malik, R. J., & Walker, J. F. (1987). Determination of the (100) InAs/GaSb heterojunction valence-band discontinuity by x-ray photoemission core level spectroscopy. Journal of Applied Physics, 61(12), 5337â5341.

Authors 5

G. J. Gualtieri (first)
G. P. Schwartz (additional)
R. G. Nuzzo (additional)
R. J. Malik (additional)
J. F. Walker (additional)

References 33 Referenced 54

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:55 a.m.)
Deposited	1 year, 6 months ago (Feb. 4, 2024, 1:34 a.m.)
Indexed	1 year, 6 months ago (Feb. 10, 2024, 6 a.m.)
Issued	38 years, 2 months ago (June 15, 1987)
Published	38 years, 2 months ago (June 15, 1987)
Published Print	38 years, 2 months ago (June 15, 1987)

Funders 0

None

BibTeX

@article{Gualtieri_1987, title={Determination of the (100) InAs/GaSb heterojunction valence-band discontinuity by x-ray photoemission core level spectroscopy}, volume={61}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.338270}, DOI={10.1063/1.338270}, number={12}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Gualtieri, G. J. and Schwartz, G. P. and Nuzzo, R. G. and Malik, R. J. and Walker, J. F.}, year={1987}, month=jun, pages={5337–5341} }

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