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 magneto-mechanical crystal composed of an array of magnetic nanowires. Phononic and magnonic modes are impulsively excited by an optical ultrafast trigger and their decay is monitored by time resolved Magneto Optical Kerr Effect, with complementary Brillouin Light Scattering measurements and micromagnetic simulations. The strength and degree of mixing of coherent and dissipative coupling of the quasi-particles is determined quantitatively.
Coherent and dissipative coupling in a magnetomechanical system / P. Carrara, M. Brioschi, R. Silvani, A.O. Adeyeye, G. Panaccione, G. Gubbiotti, G. Rossi, R. Cucini. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 132:(2024 May), pp. 216701.1-216701.6. [10.1103/PhysRevLett.132.216701]
Coherent and dissipative coupling in a magnetomechanical system
P. CarraraCo-primo
;M. BrioschiCo-primo
;G. Rossi
Penultimo
;
2024
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 magneto-mechanical crystal composed of an array of magnetic nanowires. Phononic and magnonic modes are impulsively excited by an optical ultrafast trigger and their decay is monitored by time resolved Magneto Optical Kerr Effect, with complementary Brillouin Light Scattering measurements and micromagnetic simulations. The strength and degree of mixing of coherent and dissipative coupling of the quasi-particles is determined quantitatively.File | Dimensione | Formato | |
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