Spin Torque-Generated Magnetic Droplet Solitons

Research output: Contribution to journalArticle

DOI

Authors

  • 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

External departments

  • KTH Royal Institute of Technology
  • University of Gothenburg
  • Stanford University
  • North Carolina State University
  • Helmholtz-Zentrum

Details

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

Research output: Contribution to journalArticle

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.