Highly anisotropic commensurability oscillations in two-dimensional holes at the GaAs/AlGaAs (3 1 1)A interface

J. B. Yau; J. P. Lu; H. C. Manoharan; M. Shayegan

doi:10.1016/S1386-9477(99)00209-X

Highly anisotropic commensurability oscillations in two-dimensional holes at the GaAs/AlGaAs (3 1 1)A interface

J. B. Yau, J. P. Lu, H. C. Manoharan, M. Shayegan

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

Measurements of commensurability oscillations in GaAs/AlGaAs two-dimensional (2D) hole systems grown on GaAs (3 1 1)A substrates reveal a remarkable anisotropy: the amplitude of the measured commensurability oscillations along the [2̄ 3 3] direction is about 100 times larger than along [0 1 1̄]. For 2D electron systems at similar interfaces, however, we observe nearly isotropic oscillations, suggesting that the anomalous anisotropy is intrinsic to GaAs 2D holes at the (3 1 1)A interface.

Original language	English (US)
Pages (from-to)	453-456
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	6
Issue number	1
DOIs	https://doi.org/10.1016/S1386-9477(99)00209-X
State	Published - Feb 2000
Event	13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can Duration: Aug 1 1999 → Aug 6 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/S1386-9477(99)00209-X

Cite this

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title = "Highly anisotropic commensurability oscillations in two-dimensional holes at the GaAs/AlGaAs (3 1 1)A interface",

abstract = "Measurements of commensurability oscillations in GaAs/AlGaAs two-dimensional (2D) hole systems grown on GaAs (3 1 1)A substrates reveal a remarkable anisotropy: the amplitude of the measured commensurability oscillations along the [{\=2} 3 3] direction is about 100 times larger than along [0 1 {\=1}]. For 2D electron systems at similar interfaces, however, we observe nearly isotropic oscillations, suggesting that the anomalous anisotropy is intrinsic to GaAs 2D holes at the (3 1 1)A interface.",

author = "Yau, {J. B.} and Lu, {J. P.} and Manoharan, {H. C.} and M. Shayegan",

note = "Funding Information: This work was supported by the NSF and the ARO.; 13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) ; Conference date: 01-08-1999 Through 06-08-1999",

year = "2000",

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doi = "10.1016/S1386-9477(99)00209-X",

language = "English (US)",

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journal = "Physica E: Low-Dimensional Systems and Nanostructures",

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TY - JOUR

T1 - Highly anisotropic commensurability oscillations in two-dimensional holes at the GaAs/AlGaAs (3 1 1)A interface

AU - Yau, J. B.

AU - Lu, J. P.

AU - Manoharan, H. C.

AU - Shayegan, M.

N1 - Funding Information: This work was supported by the NSF and the ARO.

PY - 2000/2

Y1 - 2000/2

N2 - Measurements of commensurability oscillations in GaAs/AlGaAs two-dimensional (2D) hole systems grown on GaAs (3 1 1)A substrates reveal a remarkable anisotropy: the amplitude of the measured commensurability oscillations along the [2̄ 3 3] direction is about 100 times larger than along [0 1 1̄]. For 2D electron systems at similar interfaces, however, we observe nearly isotropic oscillations, suggesting that the anomalous anisotropy is intrinsic to GaAs 2D holes at the (3 1 1)A interface.

AB - Measurements of commensurability oscillations in GaAs/AlGaAs two-dimensional (2D) hole systems grown on GaAs (3 1 1)A substrates reveal a remarkable anisotropy: the amplitude of the measured commensurability oscillations along the [2̄ 3 3] direction is about 100 times larger than along [0 1 1̄]. For 2D electron systems at similar interfaces, however, we observe nearly isotropic oscillations, suggesting that the anomalous anisotropy is intrinsic to GaAs 2D holes at the (3 1 1)A interface.

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U2 - 10.1016/S1386-9477(99)00209-X

DO - 10.1016/S1386-9477(99)00209-X

M3 - Conference article

AN - SCOPUS:0034139123

SN - 1386-9477

VL - 6

SP - 453

EP - 456

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1

T2 - 13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13)

Y2 - 1 August 1999 through 6 August 1999

ER -

Highly anisotropic commensurability oscillations in two-dimensional holes at the GaAs/AlGaAs (3 1 1)A interface

Abstract

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