Year: 2016
Type: article
Abstract: We report a study of interlayer exchange interaction in multilayer [Co/Pt]n/Pt/Co structures. The structures consist of a periodic [Co/Pt]n multilayer film with a perpendicular anisotropy and a thick Co layer with an in-plane anisotropy. The subsystems are separated by a Pt spacer with variable thickness. The magnetooptical Kerr effect and the ferromagnetic resonance measurements show the essentially non-collinear state of magnetic moments of the layers and strong exchange coupling between the [Co/Pt]n and the Co subsystems. A simple model based on the Landau-Lifshitz-Gilbert equation shows that the exchange coupling is ferromagnetic. The exchange constant is estimated in this simple model. The estimated value is J=2 erg/cm2.
Source: Journal of Applied Physics
DOI: 10.1063/1.4967163
Authors: E. S. Demidov, N. S. Gusev, L. I. Budarin, E. A. Karashtin, V. L. Mironov, A. A. Fraerman
Institution: Institute for Physics of Microstructures
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1102266395, G5470986544
OpenAlex ID: W2398659035