title: The origin of the pseudogap in α-Ga.
abstract: Density functional theory, the free-electron empty lattice approximation and the nearly free-electron approximation are employed to investigate the electronic properties of partially covalent α-Ga. Whereas free-electron-like properties are revealed over a large energy range, a deep pseudogap at the Fermi level is characteristic of α-Ga. We explain the origin of the pseudogap in terms of a delicate interplay between the electronic states and the specific Brillouin zone geometry.
authors.affiliation: Physical Sciences and Engineering Division, KAUST, Thuwal 23955-6900, Kingdom of Saudi Arabia.
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Zhu
authors.forename: Y C
authors.initials: YC
authors.lastname: Cheng
authors.forename: U
authors.initials: U
authors.lastname: Schwingenschlögl