title: Global and local superconductivity in boron-doped granular diamond.
abstract: Strong granularity-correlated and intragrain modulations of the superconducting order parameter are demonstrated in heavily boron-doped diamond situated not yet in the vicinity of the metal-insulator transition. These modulations at the superconducting state (SC) and at the global normal state (NS) above the resistive superconducting transition, reveal that local Cooper pairing sets in prior to the global phase coherence.
authors.affiliation: INPAC-Insititute for Nanoscale Physics and Chemistry, KU Leuven, Celestijnenlaan 200D, B-3001, Leuven, Belgium.
authors.forename: Gufei
authors.initials: G
authors.lastname: Zhang
authors.forename: Stuart
authors.initials: S
authors.lastname: Turner
authors.forename: Evgeny A
authors.initials: EA
authors.lastname: Ekimov
authors.forename: Johan
authors.initials: J
authors.lastname: Vanacken
authors.forename: Matias
authors.initials: M
authors.lastname: Timmermans
authors.forename: Tomás
authors.initials: T
authors.lastname: Samuely
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Sidorov
authors.forename: Sergei M
authors.initials: SM
authors.lastname: Stishov
authors.forename: Yinggang
authors.initials: Y
authors.lastname: Lu
authors.forename: Bart
authors.initials: B
authors.lastname: Deloof
authors.forename: Bart
authors.initials: B
authors.lastname: Goderis
authors.forename: Gustaaf
authors.initials: G
authors.lastname: Van Tendeloo
authors.forename: Joris
authors.initials: J
authors.lastname: Van de Vondel
authors.forename: Victor V
authors.initials: VV
authors.lastname: Moshchalkov
keywords: diamond; granular disorder; substitutional boron doping; superconductivity