Abstract
We suggest a new theoretical model to study the anisotropic scattering effect of the elongated quantum dots embedded in the GaAs/InGaAs double hetero-junction quantum well on the two-dimensional electron gas (2DEG). The elongated quantum dot (QD) with geometry which differs from ball-shaped quantum dot having isotropic cross section is assumed to be ellipsoid in the present calculation. The results show that the scattering in the direction parallel to the ellipsoid orientation (having small cross section) is weaker than that in the direction perpendicular to the ellipsoid orientation (having larger cross section) for the elongated QD when the mobile 2DEG is confined within the channel plane.
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