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- Title
Effective Influence of an Electric Current on Brillouin Spectra in the NiFe/IrMn Structure.
- Authors
Morgunov, R. B.; Bakhmetiev, M. V.; Chernov, A. I.; Khutieva, A. B.; Sadovnikov, A. V.
- Abstract
When an electric current flows through the NiFe/IrMn structure, a significant redistribution of the intensities of the direct Stokes and inverse anti-Stokes lines in spectra of Brillouin scattering on thermal spin waves is observed. This is due to a change in the orientation of uniaxial anisotropy and the corresponding easy axis of the exchange shift under the action of the spin–orbit torque in the IrMn antiferromagnet, which in turn affects the dynamics of spin waves in the neighboring ferromagnetic NiFe layer. The detected effect indicates that spin-wave processes in a ferromagnet can be controlled by applying a spin current to change the magnetic anisotropy of the NiFe/IrMn interface.
- Subjects
ELECTRIC currents; BRILLOUIN scattering; SPIN waves; MAGNETIC anisotropy; FERROMAGNETIC materials; ANISOTROPY; SPIN-orbit interactions
- Publication
JETP Letters, 2024, Vol 119, Issue 4, p299
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364023603998