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Highly anisotropic commensurability oscillations in two-dimensional holes at the GaAs/AlGaAs (311)A interface

Jeng-Bang Yau·Jeng-Ping Lu·Harindran C. Manoharan·Mansour Shayegan
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Abstract

Measurements of commensurability oscillations in GaAs/AlGaAs two-dimensional (2D) hole systems grown on GaAs (311)A substrates reveal a remarkable anisotropy: the amplitude of the measured commensurability oscillations along the [$\bar{2}$33] direction is about 100 times larger than along [01$\bar{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 (311)A interface.

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Jeng-Bang Yau, Jeng-Ping Lu, Harindran C. Manoharan, Mansour Shayegan. 2000-09-22. Highly anisotropic commensurability oscillations in two-dimensional holes at the GaAs/AlGaAs (311)A interface. https://doi.org/10.1016/s1386-9477(99)00209-x

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