Spin Torque-Generated Magnetic Droplet Solitons
Journal article, 2013
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.
excitation
ClaudioSerpico
BAKOSEVICH
waves
BAIVANOV
WSerpico
C201081PHYSICAL REVIEW BnullIVANOV
states
Author
S. M. Mohseni
S. R. Sani
J. Persson
T. N. A. Nguyen
Sunjae Chung
University of Gothenburg
Yevgen Pogoryelov
University of Gothenburg
Pranaba Muduli Kishor
University of Gothenburg
Ezio Iacocca
University of Gothenburg
A. Eklund
Randy K. Dumas
University of Gothenburg
Stefano Bonetti
A. Deac
M. A. Hoefer
Johan Åkerman
University of Gothenburg
Science
0036-8075 (ISSN) 1095-9203 (eISSN)
Vol. 339 6125 1295-1298Subject Categories (SSIF 2011)
Other Natural Sciences
DOI
10.1126/science.1230155