title: Spin torque-generated magnetic droplet solitons.
abstract: Dissipative solitons have been reported in a wide range of nonlinear systems, but the observation of their magnetic analog has been experimentally challenging. Using spin transfer torque underneath a nanocontact on a magnetic thin film with perpendicular magnetic anisotropy (PMA), we have observed the generation of dissipative magnetic droplet solitons and report on their rich dynamical properties. Micromagnetic simulations identify a wide range of automodulation frequencies, including droplet oscillatory motion, droplet "spinning," and droplet "breather" states. The droplet can be controlled by using both current and magnetic fields and is expected to have applications in spintronics, magnonics, and PMA-based domain-wall devices.
authors.affiliation: Materials Physics, School of Information and Communication Technology, KTH Royal Institute of Technology, Kista, Sweden.
authors.forename: S M
authors.initials: SM
authors.lastname: Mohseni
authors.forename: S R
authors.initials: SR
authors.lastname: Sani
authors.forename: J
authors.initials: J
authors.lastname: Persson
authors.forename: T N Anh
authors.initials: TN
authors.lastname: Nguyen
authors.forename: S
authors.initials: S
authors.lastname: Chung
authors.forename: Ye
authors.initials: Y
authors.lastname: Pogoryelov
authors.forename: P K
authors.initials: PK
authors.lastname: Muduli
authors.forename: E
authors.initials: E
authors.lastname: Iacocca
authors.forename: A
authors.initials: A
authors.lastname: Eklund
authors.forename: R K
authors.initials: RK
authors.lastname: Dumas
authors.forename: S
authors.initials: S
authors.lastname: Bonetti
authors.forename: A
authors.initials: A
authors.lastname: Deac
authors.forename: M A
authors.initials: MA
authors.lastname: Hoefer
authors.forename: J
authors.initials: J
authors.lastname: Akerman