Abstract

Two new Au-induced reconstructed phases on the GaN(0001) surface have been identified and investigated by STM/STS method. Ringlike and c(2×12) surface nanostructures were observed on STM images. The commensurate c(2×12) structure (α-phase), according to our spectroscopic measurements, demonstrates properties of a 1D system, whereas the incommensurate β-phase looks similar to a disordered 2D system.

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