DOI: 10.1063/1.96088. Negative photoconductivity of two-dimensional holes in GaAs/AlGaAs heterojunctions

Negative photoconductivity of two-dimensional holes in GaAs/AlGaAs heterojunctions

10.1063/1.96088

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

A negative photoconductivity is observed due to the two-dimensional (2D) holes at GaAs/Al0.5Ga0.5As heterojunctions under illumination by a red light-emitting diode below ∼6 K. The photoconductivity follows a nonexponential decay after the illumination is turned off. Quantum transport measurements are made to demonstrate explicitly that the photoconductivity is due to a decrease in the density and mobility of the 2D holes, and a model is proposed to explain the phenomenon.

Bibliography

Chou, M. J., Tsui, D. C., & Weimann, G. (1985). Negative photoconductivity of two-dimensional holes in GaAs/AlGaAs heterojunctions. Applied Physics Letters, 47(6), 609â611.

Authors 3

M. J. Chou (first)
D. C. Tsui (additional)
G. Weimann (additional)

References 11 Referenced 59

10.1063/1.92604 / Appl. Phys. Lett. (1981)
10.1063/1.94750 / Appl. Phys. Lett. (1984)
10.1103/PhysRevB.19.1015 / Phys. Rev. B (1979)
10.1063/1.95349 / Appl. Phys. Lett. (1984)
10.1063/1.94580 / Appl. Phys. Lett. (1984)
{'key': '2024020515081414100_r5', 'first-page': '1087', 'volume': '30', 'year': '1984', 'journal-title': 'Phys. Rev. B'} / Phys. Rev. B (1984)
{'key': '2024020515081414100_r6'}
10.1103/PhysRevB.29.4562 / Phys. Rev. B (1984)
10.1103/PhysRevLett.54.234 / Phys. Rev. Lett. (1985)
10.1103/PhysRevLett.51.126 / Phys. Rev. Lett. (1983)
10.1103/PhysRevLett.53.2579 / Phys. Rev. Lett. (1984)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:46 a.m.)
Deposited	1 year, 6 months ago (Feb. 5, 2024, 10:17 a.m.)
Indexed	2 days, 18 hours ago (Sept. 2, 2025, 6:35 a.m.)
Issued	39 years, 11 months ago (Sept. 15, 1985)
Published	39 years, 11 months ago (Sept. 15, 1985)
Published Print	39 years, 11 months ago (Sept. 15, 1985)

Funders 0

None

BibTeX

@article{Chou_1985, title={Negative photoconductivity of two-dimensional holes in GaAs/AlGaAs heterojunctions}, volume={47}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.96088}, DOI={10.1063/1.96088}, number={6}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Chou, M. J. and Tsui, D. C. and Weimann, G.}, year={1985}, month=sep, pages={609–611} }

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