Abstract
The surface and bulk contributions have been distinguished in the angle-resolved X-ray photoemission spectra of Te(3d52) electronic state from the CdTe(1̄1̄1̄) surface with the binding energies Eb1 = 574.0 eV (±0.1 eV) and Eb2 = 572.8 eV (± 0.1 eV), respectively. Several reconstructions, namely (1 × 1), (2 × 2), (2√3 × 2√3)R30° and c(8 × 4) have been observed for the CdTe(1̄1̄1̄) MBE-grown surfaces for different tellurium fluxes as a function of the substrate temperature. The growth of subsequent CdTe(1̄1̄1̄) layers on the reconstructed surfaces was attempted under different conditions such as different tellurium pressure and sample temperature. A correlation between the reconstruction type and the phase of the corresponding RHEED oscillations observed during the growth was found. Bilayer surface representations derived from the “hexagonal ring” model recently proposed for the √19 structure observed on the GaAs(1̄1̄1̄) surface [1] are suggested for the (2 × 2), c(8 × 4) and (2√3 × 2√3)R30° CdTe(1̄1̄1̄) structure
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