Scanning Tunneling Spectroscopy Observation of Electronic Resonances Originating from 1 ×1 Potential on the Dense Pb Overlayer on Si(111) - Lu, Shin-Ming; Chan, Wen-Yuan; Chou, Hsing-Yi; Chiu, Ya-Ping; Su, Wei-Bin; Chu, Pei-Hong; Jiang, Chi-Lun; Chang, Chia-Seng; Hsiao, Hsi-Lien; Tsong, Tien Tzou (Japanese Journal of Applied Physics, 2012)