Abstract
Changes in the structures of the (111) and (110) surfaces of iron single crystal due to ion-bombardment and subsequent heating in vacuum were investigated by means of LEED and Auger emission spectroscopy.It was shown that with rising temperature to 500°C, (110) facets developed in the (111) suriace, and oxygen and sulfur atoms gathered around (110) and (111) in each stage, respectively, resulting in a reconstruction of the surface forming a superlattice.Based on the LEED pattern obtained, possible arrangements of the lattice of the oxygen and sulfur atoms on the surface in each stage were determined.
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