Coherent and Dissipative Coupling in a Magnetomechanical System

Carrara, P; Brioschi, M; Silvani, R; Adeyeye, A. O.; Panaccione, G; Gubbiotti, G; Rossi, G; Cucini, R

Abstract

Hybrid elastic and spin waves hold promises for energy-efficient and versatile generation and detection of magnetic signals, with potentially long coherence times. Here we report on the combined elastic and magnetic dynamics in a one-dimensional magnetomechanical crystal composed of an array of magnetic nanostripes. Phononic and magnonic modes are impulsively excited by an optical ultrafast trigger and their decay is monitored by time-resolved magneto-optical Kerr effect. Complementary Brillouin light scattering measurements and micromagnetic simulations concur in a unified picture, in which the strength and degree of mixing of coherent and dissipative coupling of the quasiparticles are determined quantitatively.

Citation

Carrara, P., Brioschi, M., Silvani, R., Adeyeye, A. O., Adeyeye, A., Panaccione, G., …Cucini, R. (2024). Coherent and Dissipative Coupling in a Magnetomechanical System. Physical Review Letters, 132(21), Article 216701. https://doi.org/10.1103/PhysRevLett.132.216701

• Journal Article Type: Article
• Acceptance Date: Apr 8, 2024
• Online Publication Date: May 22, 2024
• Publication Date: May 22, 2024
• Deposit Date: May 29, 2024
• Publicly Available Date: May 29, 2024
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 132
• Issue: 21
• Article Number: 216701
• DOI: https://doi.org/10.1103/PhysRevLett.132.216701
• Public URL: https://durham-repository.worktribe.com/output/2467078