Magnetic vortex oscillators

Gino Hrkac, Paul S. Keatley, Matthew T. Bryan, Keith Butler

Research output: Contribution to journalArticlepeer-review

42 Citations (SciVal)


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.

Original languageEnglish
Article number453001
JournalJournal of Physics D: Applied Physics
Issue number45
Early online date6 Oct 2015
Publication statusPublished - 2015


  • Magnetic oscillator
  • Magnetic vortex
  • Spin torque


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