New Identification of Metallic Phases of In Atomic layers on Si(111) Surfaces

Abstract

We report first-principles calculations that clarify atomic structures and coverage of the metallic phases of In overlayers on Si (111) surfaces. Calculated energy bands and scanning tunneling microscopy images along with the obtained energetics of various phases reveal that the two metallic phases with the $\sqrt{7}\times \sqrt{3}$ periodicity observed experimentally are single and double In overlayers, as opposed to prevailing assignments.

References in corpus (2)

• Metallic behavior and related phenomena in two dimensions
• Macroscopic Superconducting Current through a Silicon Surface Reconstruction with Indium Adatoms: Si(111)-(R7$\times$R3)-In

Cited by in corpus (4)

• Disorder-induced suppression of superconductivity in the Si(111)-($\sqrt{7}\times \sqrt{3}$)-In surface: Scanning tunneling microscopy study
• Hexagonal Indium Double Layer on Si(111)-($\sqrt{7}\times \sqrt{3})$
• Non-charge-transfer origin of Tc Enhancement in a Surface Superconductor Si(111)-(root7xroot3)-In with Adsorbed Organic Molecules
• Engineering topological superconductors using surface atomic-layer/molecule hybrid materials