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- Title
Magnetic-Field-Induced Optical Second-Harmonic Generation Study of Co/Pt and Co/Ta Interfaces.
- Authors
Kolmychek, I. A.; Radovskaya, V. V.; Lazareva, K. A.; Shalygina, E. E.; Gusev, N. S.; Maidykovskii, A. I.; Murzina, T. V.
- Abstract
Magnetic properties of an interface between cobalt and platinum or tantalum nanolayers have been studied by the optical second-harmonic generation and nonlinear magneto-optical Kerr effect methods. It has been shown that a high sensitivity of the second-harmonic generation method makes it possible to determine the orientation of the easy magnetization axis in the plane of a polycrystalline structure without measurement of the magnetic field dependence of second-harmonic generation. The comparison of the field dependences of magnetic-field-induced second-harmonic generation with the linear magneto-optical effect indicates the difference in the processes of magnetization reversal in Co/Pt and Co/Ta interfaces and the bulk of the cobalt film. In particular, a new linear in magnetization effect has been observed in the second harmonic that is symmetry-forbidden for uniformly magnetized structures.
- Subjects
KERR magneto-optical effect; KERR electro-optical effect; MAGNETOOPTICS; MAGNETIC field measurements; MAGNETIZATION reversal; MAGNETIC properties; MAGNETIZATION
- Publication
Journal of Experimental & Theoretical Physics, 2020, Vol 130, Issue 4, p555
- ISSN
1063-7761
- Publication type
Article
- DOI
10.1134/S1063776120030061