title: Structure and superconductivity of LiFeAs.
abstract: Lithium iron arsenide phases with compositions close to LiFeAs exhibit superconductivity at temperatures at least as high as 16 K, demonstrating that superconducting [FeAs](-) anionic layers with the anti-PbO structure type occur in at least three different structure types and with a wide range of As-Fe-As bond angles.
authors.affiliation: Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, UK OX1 3QR.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Pitcher
authors.forename: Dinah R
authors.initials: DR
authors.lastname: Parker
authors.forename: Paul
authors.initials: P
authors.lastname: Adamson
authors.forename: Sebastian J C
authors.initials: SJ
authors.lastname: Herkelrath
authors.forename: Andrew T
authors.initials: AT
authors.lastname: Boothroyd
authors.forename: Richard M
authors.initials: RM
authors.lastname: Ibberson
authors.forename: Michela
authors.initials: M
authors.lastname: Brunelli
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Clarke