title: Induced magnetic ordering by proton irradiation in graphite.
abstract: We provide evidence that proton irradiation of energy 2.25 MeV on highly oriented pyrolytic graphite samples triggers ferro- or ferrimagnetism. Measurements performed with a superconducting quantum interferometer device and magnetic force microscopy reveal that the magnetic ordering is stable at room temperature.
authors.affiliation: Institut für Experimentelle Physik II, Universität Leipzig, Linnéstrasse 5, D-04103 Leipzig, Germany. esquin@physik.uni-leipzig.de
authors.forename: P
authors.initials: P
authors.lastname: Esquinazi
authors.forename: D
authors.initials: D
authors.lastname: Spemann
authors.forename: R
authors.initials: R
authors.lastname: Höhne
authors.forename: A
authors.initials: A
authors.lastname: Setzer
authors.forename: K-H
authors.initials: KH
authors.lastname: Han
authors.forename: T
authors.initials: T
authors.lastname: Butz