title: Electronic band structure of Cu(2)O by spin density functional theory.
abstract: The band structure of Cu(2)O is calculated using density functional theory in the generalized gradient approximation. By taking spin-orbit coupling into account the split between the Γ(7)(+) and the Γ(8)(+) valence band states is obtained as 128 meV. The highest valence band shows a noticeable nonparabolicity close to the Γ point. This is important for the quantitative description of excitons in this material, which is considered to be the best candidate for the confirmation that Bose-Einstein condensation also occurs in excitonic systems.
authors.affiliation: Institut für Physik, Universität Rostock, D-18051 Rostock, Germany.
authors.forename: M
authors.initials: M
authors.lastname: French
authors.forename: R
authors.initials: R
authors.lastname: Schwartz
authors.forename: H
authors.initials: H
authors.lastname: Stolz
authors.forename: R
authors.initials: R
authors.lastname: Redmer