title: Construction of the B88 Exchange-Energy Functional in Two Dimensions.
abstract: We construct a generalized-gradient approximation for the exchange-energy density of finite two-dimensional systems. Guided by nonempirical principles, we include the proper small-gradient limit and the proper tail for the exchange-hole potential. The observed performance is superior to that of the two-dimensional local-density approximation, which underlines the usefulness of the approach in practical applications.
authors.affiliation: Instituto de Ciencia de Materiales de Madrid, CSIC 28049 Madrid, Spain.|Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid , Campus de Cantoblanco, Madrid 28049, Spain.
authors.forename: J G
authors.initials: JG
authors.lastname: Vilhena
authors.affiliation: Department of Physics, Tampere University of Technology , FI-33101 Tampere, Finland.
authors.forename: E
authors.initials: E
authors.lastname: Räsänen
authors.affiliation: Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon , F-69622 Villeurbanne Cedex, France.
authors.forename: M A L
authors.initials: MA
authors.lastname: Marques
authors.affiliation: CNR-Istituto di Nanoscienze , Via Campi 213A, I-41125 Modena, Italy.|Department of Chemistry, University of California , Irvine, California 92697, United States.
authors.forename: S
authors.initials: S
authors.lastname: Pittalis