title: L1₀ FePtCu bit patterned media.
abstract: Chemically ordered 5 nm-thick L1₀ FePtCu films with strong perpendicular magnetic anisotropy were post-patterned by nanoimprint lithography into a dot array over a 3 mm-wide circumferential band on a 3 inch Si wafer. The dots with a diameter of 30 nm and a center-to-center pitch of 60 nm appear as single domain and reveal an enhanced switching field as compared to the continuous film. We demonstrate successful recording on a single track using shingled writing with a conventional hard disk drive write/read head.
authors.affiliation: Institute of Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Brombacher
authors.forename: M
authors.initials: M
authors.lastname: Grobis
authors.forename: J
authors.initials: J
authors.lastname: Lee
authors.forename: J
authors.initials: J
authors.lastname: Fidler
authors.forename: T
authors.initials: T
authors.lastname: Eriksson
authors.forename: T
authors.initials: T
authors.lastname: Werner
authors.forename: O
authors.initials: O
authors.lastname: Hellwig
authors.forename: M
authors.initials: M
authors.lastname: Albrecht