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Abstract:
Using scanned energy mode photoelectron diffraction we show that in the potassium-induced reconstruction of the Cu{110} surface the K atoms occupy four-fold hollow sites formed by second layer Cu atoms. This same site, which is the key to the reconstruction, is observed both at low coverages, where the reconstruction is local in nature, and at coverages corresponding to the (1 × 3) and(1 × 2) missing row structures.
