Spin Torque-Generated Magnetic Droplet Solitons

Seyed Majid Mohseni, Sohrab R. Sani, J. Persson, T. N. Anh Nguyen, Sunjae Chung, Ye Pogoryelov, Pranaba K. Muduli, Ezio Iacocca, Anders Eklund, Randy K. Dumas, Stefano Bonetti, A. Deac, Mark A. Hoefer, Johan Akerman

Research output: Contribution to journalArticlepeer-review

196 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)1295-1298
JournalScience
Volume339
Issue number6125
DOIs
Publication statusPublished - 15 Mar 2013
Externally publishedYes

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