title: Universal electromotive force induced by domain wall motion.
abstract: The electromotive force induced by a moving magnetic domain wall in a nanostrip has been calculated theoretically and detected experimentally. It is found that the emf depends only on the domain wall transformation frequency through a universal Josephson type relation, which is closely related to the topological nature of the domain wall. Our experimental measurements confirm the theoretical prediction.
authors.affiliation: Department of Physics, The University of Texas, Austin, Texas, 78712-0264, USA.
authors.forename: Shengyuan A
authors.initials: SA
authors.lastname: Yang
authors.forename: Geoffrey S D
authors.initials: GS
authors.lastname: Beach
authors.forename: Carl
authors.initials: C
authors.lastname: Knutson
authors.forename: Di
authors.initials: D
authors.lastname: Xiao
authors.forename: Qian
authors.initials: Q
authors.lastname: Niu
authors.forename: Maxim
authors.initials: M
authors.lastname: Tsoi
authors.forename: James L
authors.initials: JL
authors.lastname: Erskine