Controlling the chirality and polarity of vortices in magnetic tunnel junctions - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Applied Physics Letters Year : 2014

Controlling the chirality and polarity of vortices in magnetic tunnel junctions

Abstract

Static and dynamic control of the chirality and polarity of a magnetic vortex confined in a magnetic tunnel junction is demonstrated. The modes associated with the four chirality/polarity vortex configurations are first explored by resonant excitation with a low power rf current. When the rf power is increased, both the chirality and polarity of the vortex can be resonantly switched, which—as shown by micromagnetic simulations—involves vortex expulsion and renucleation. This tunable resonant switching of the vortex parameters are an exciting step forward for the viability of magnetic vortex-based applications.
Not file

Dates and versions

cea-01377124 , version 1 (06-10-2016)

Identifiers

Cite

S. Jenkins, E. Grimaldi, P. Bortolotti, R. Lebrun, H. Kubota, et al.. Controlling the chirality and polarity of vortices in magnetic tunnel junctions. Applied Physics Letters, 2014, 105 (17), ⟨10.1063/1.4900743⟩. ⟨cea-01377124⟩
118 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More