title: Structural and electronic response upon hole doping of rare-earth iron oxyarsenides Nd(1-)(x)Sr(x)FeAsO (0 < x< or = 0.2).
abstract: Hole doping of NdFeAsO via partial replacement of Nd3+ by Sr2+ is a successful route to obtaining superconducting phases (T(c) = 13.5 K for a Sr2+ content of 20%); however, the structural and electronic response with doping is different from and non-symmetric to that in the electron-doped side of the phase diagram.
authors.affiliation: School of Chemistry, University of Edinburgh, Edinburgh, UKEH9 3JJ.
authors.forename: Karolina
authors.initials: K
authors.lastname: Kasperkiewicz
authors.forename: Jan-Willem G
authors.initials: JW
authors.lastname: Bos
authors.forename: Andrew N
authors.initials: AN
authors.lastname: Fitch
authors.forename: Kosmas
authors.initials: K
authors.lastname: Prassides
authors.forename: Serena
authors.initials: S
authors.lastname: Margadonna