A New Stationary Mode of Coupled Oscillations in a Three-Layer Spin-Transfer Nano-Oscillator at High Currents

• Published in: Physics of metals and metallography Vol. 125; no. 1; pp. 33 - 40
• Main Authors: Antonov, G. I., Ekomasov, E. G., Zvezdin, K. A., Pugach, N. G.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 2024; Springer Nature B.V
• Subjects: Chemistry and Materials Science; Coupled modes; Electrical and Magnetic Properties; Materials Science; Metallic Materials; Oscillations; Oscillators; Spin dynamics; Vortices; magnetic vortices; spin-transfer nano-oscillator; magnetic nanodisks
• ISSN: 0031-918X; 1555-6190
• DOI: 10.1134/S0031918X23602317

The influence of a large spin-polarized current on the coupled dynamics of vortices in spin-transfer nanooscillators with a diameter of 400 nm is investigated. New stationary modes of coupled oscillations of vortices have been discovered, both for the same and opposite polarities of their cores. The dependence of the frequency of stationary coupled oscillations of magnetic vortices on the magnitude of the spin-polarized current has been studied. The found effect can be used to increase the operating frequencies of spin-transfer nano-oscillators.