title: Control of the Ultrafast Photoinduced Magnetization across the Morin Transition in DyFeO_{3}.
abstract: Excitation of the collinear compensated antiferromagnet DyFeO_{3} with a single 60 fs laser pulse triggers a phase transition across the Morin point into a noncollinear spin state with a net magnetization. Time-resolved imaging of the magnetization dynamics of this process reveals that the pulse first excites the spin oscillations upon damping of which the noncollinear spin state emerges. The sign of the photoinduced magnetization is defined by the relative orientation of the pump polarization and the direction of the antiferromagnetic vector in the initial collinear spin state.
authors.affiliation: Radboud University, Institute for Molecules and Materials, 6525 AJ Nijmegen, The Netherlands.
authors.forename: D
authors.initials: D
authors.lastname: Afanasiev
authors.affiliation: Institute of Magnetism, National Academy of Sciences, 03142 Kiev, Ukraine.|Taras Shevchenko National University of Kiev, 01601 Kiev, Ukraine.
authors.forename: B A
authors.initials: BA
authors.lastname: Ivanov
authors.affiliation: Radboud University, Institute for Molecules and Materials, 6525 AJ Nijmegen, The Netherlands.
authors.forename: A
authors.initials: A
authors.lastname: Kirilyuk
authors.affiliation: Radboud University, Institute for Molecules and Materials, 6525 AJ Nijmegen, The Netherlands.
authors.forename: Th
authors.initials: T
authors.lastname: Rasing
authors.affiliation: Ioffe Physical-Technical Institute RAS, 194021 St. Petersburg, Russia.
authors.forename: R V
authors.initials: RV
authors.lastname: Pisarev
authors.affiliation: Radboud University, Institute for Molecules and Materials, 6525 AJ Nijmegen, The Netherlands.
authors.forename: A V
authors.initials: AV
authors.lastname: Kimel