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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: First-Principles Study of Point Defects in GaAs/AlAs Superlattice: the Phase Stability and the Effects on the Band Structure and Carrier Mobility

Fig. 2

Schematic view of geometrical structures of a ideal GaAs/AlAs superlattice; b and c GaAs/AlAs superlattice with different point defects. XY: (X, Y = Ga, Al, or As) X occupying the Y lattice site; VX: X vacancy; Xint: X interstitial. The yellow and carmine spheres represent the vacancy and interstitial defects, respectively

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