The inter-adsorbate interaction mediated by Shockley-type surface state electrons and dipole moment: Cs and Ba atoms absorbed on Ag (111) films

Flat AgTe Honeycomb Monolayer on Ag(111)

“…To illustrate the electronic structure of AgTe in experiment, we conducted ARPES characterization of AgTe on Ag(111) substrate. Figure d indicates that the surface states of Ag(111) are totally modulated by the epitaxy of monolayer AgTe . In addition to the bands with strong intensity from −6 eV to −4 eV which are donated by Ag(111) substrate, near the Fermi level, electron-like bands of the Ag(111) surface disappears, and hole-like bands above −2 eV are detected.…”

“…Figure 2d indicates that the surface states of Ag(111) are totally modulated by the epitaxy of monolayer AgTe. 39 In addition to the bands with strong intensity from −6 eV to −4 eV which are donated by Ag(111) substrate, near the Fermi level, electron-like bands of the Ag(111) surface disappears, and hole-like bands above −2 eV are detected. Our DFT calculations of monolayer AgTe on Ag(111) with SOC effect demonstrate that there are two hole-like bands contributed by AgTe (Figure 2e).…”