Au(111) surface structures induced by adsorption: LEED I(E) analysis of (1 × 1) and (5 × 5) Au(111)-S phases

► Experiments show the influence of emitting filaments on the adsorption of S on Au. ► A coverage/exposure/AES-intensity chart monitors the succession of the Au-S phases. ► A LEED study of the Au(1 × 1)-S phase found a 1% expansion of the first Au spacing. ► The analysis of the (5 × 5) Au-S phase finds 7 S atoms per unit cell, in fcc sites.