Abstract
Reconstructions of clean CdTe(100) surfaces and CdTe(100) surfaces misoriented toward the (110) plane by 2°, 4° and 6°, were investigated by low energy electron diffraction (LEED) and Auger electron spectroscopy (AES). The c(2 × 2) reconstruction was observed on all CdTe(100) surfaces investigated after Ar + sputtering and annealing at 700 K. LEED from the misoriented surfaces exhibited diffraction patterns with split spots, which indicated that those surfaces have stable stepped surface structures. Steps with edges toward the (110) plane have a height of two interplanar distances (one-half the lattice spacing) of the (100) plane. AES results showed that all the misoriented CdTe(100) surfaces are Cd-stabilized. A surface structure model for the stepped surfaces of misoriented CdTe(100) is proposed.
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