title: Electrically driven magnetic relaxation in multiferroic LuFe2O4.
abstract: We report the electrical control of magnetization in multiferroic LuFe2O4 by applying short current pulses. The magnitude of the induced magnetization change depends on the pulse width and current density. The voltage variation during the applied current pulses evidences an electric-field-induced breakdown of charge order and excludes the role of Joule heating. This current driven magnetization change can be interpreted with a three-temperature model in which the delocalized electrons accelerate spin relaxation through a strong spin-charge coupling inherent to multiferroicity. The electrically assisted magnetic relaxation provides a new approach for electrical control of magnetization.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
authors.forename: Fen
authors.initials: F
authors.lastname: Wang
authors.forename: Chang-Hui
authors.initials: CH
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Zou
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
authors.forename: Young
authors.initials: Y
authors.lastname: Sun