Magnetic vortex oscillators

The magnetic vortex has sparked the interest of the academic and industrial communities over the last few decades. From their discovery in the 1970s for bubble memory devices to their modern application as radio frequency oscillators, magnetic vortices have been adopted to modern telecommunication a...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2015-11, Vol.48 (45), p.453001-453011
Main Authors: Hrkac, Gino, Keatley, Paul S, Bryan, Matthew T, Butler, Keith
Format: Article
Language:English
Subjects:
Devices
Dynamics
Fluid flow
Hybrid structures
magnetic oscillator
Magnetic properties
magnetic vortex
Nanostructure
Oscillators
spin torque
Vortices
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Summary:The magnetic vortex has sparked the interest of the academic and industrial communities over the last few decades. From their discovery in the 1970s for bubble memory devices to their modern application as radio frequency oscillators, magnetic vortices have been adopted to modern telecommunication and sensor applications. Basic properties of vortex structures in the static and dynamic regime, from a theoretical and experimental point of view, are presented as well as their application in spin torque driven nano-pillar and magnetic tunnel junction devices. Single vortex excitations and phase locking phenomena of coupled oscillators are discussed with an outlook of vortex oscillators in magnetic hybrid structures with imprinted domain confinement and dynamic encryption devices.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/48/45/453001