title: High pressure synthesis of late rare earth RFeAs(O,F) superconductors; R = Tb and Dy.
abstract: New TbFeAs(O,F) and DyFeAs(O,F) superconductors with critical temperatures T(c) = 46 and 45 K and very high critical fields, >or=100 T, have been prepared at 1100-1150 degrees C and 10-12 GPa, demonstrating that high pressure may be used to synthesise late rare earth derivatives of the recently reported RFeAs(O,F) (R = La-Nd, Sm, Gd) high temperature superconductors.
authors.affiliation: Centre for Science at Extreme Conditions, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh, UKEH9 3JZ.
authors.forename: Jan-Willem G
authors.initials: JW
authors.lastname: Bos
authors.forename: George B S
authors.initials: GB
authors.lastname: Penny
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Rodgers
authors.forename: Dmitry A
authors.initials: DA
authors.lastname: Sokolov
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Huxley
authors.forename: J Paul
authors.initials: JP
authors.lastname: Attfield