Spin Torque-Generated Magnetic Droplet Solitons
2013 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 339, no 6125, 1295-1298 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2013. Vol. 339, no 6125, 1295-1298 p.
Waves, Excitation, States
IdentifiersURN: urn:nbn:se:kth:diva-105274DOI: 10.1126/science.1230155ISI: 000316053400031ScopusID: 2-s2.0-84874995646OAI: oai:DiVA.org:kth-105274DiVA: diva2:570492
FunderEU, FP7, Seventh Framework Programme, ICT-257159 "MACALO"Swedish Foundation for Strategic Research Swedish Research CouncilKnut and Alice Wallenberg Foundation
QC 201304112012-11-192012-11-192013-05-27Bibliographically approved