Magnon–phonon coupling: from fundamental physics to applications

Wang, Ke; Ren, Kai; Hou, Yinlong; Cheng, Yuan; Zhang, Gang

doi:10.1039/d3cp02683c

Cited by 13 publications

(8 citation statements)

References 130 publications

(160 reference statements)

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“…Magnons are bosons, which can couple with other excitations such as photons [12,38], phonons [39,40], and magnons [41,42] or simultaneously couple to both photons and phonons forming a tripartite hybrid system [43][44][45]. Magnon modes can be controlled using an external magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Controlling magnon-photon coupling in a planar geometry

Wagle,

Rai,

Kaffash

et al. 2024

J. Phys. Mater.

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The tunability of magnons enables their interaction with various other quantum excitations, including photons, paving the route for novel hybrid quantum systems. Here, we study magnon-photon coupling using a high-quality factor split-ring resonator and single-crystal yttrium iron garnet (YIG) spheres at room temperature. We investigate the dependence of the coupling strength on the size of the sphere and find that the coupling is stronger for spheres with a larger diameter as predicted by theory. Furthermore, we demonstrate strong magnon-photon coupling by varying the position of the YIG sphere within the resonator. Our experimental results reveal a theoretically-expected correlation between the coupling strength and the rf magnetic field. These findings demonstrate the control of coherent magnon-photon coupling through the theoretically predicted square-root dependence on the spin density in the ferromagnetic medium and the magnetic dipolar interaction in a planar resonator.

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Section: Introductionmentioning

confidence: 99%

Controlling magnon-photon coupling in a planar geometry

Wagle,

Rai,

Kaffash

et al. 2024

J. Phys. Mater.

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“…[ 30 ] For example, some groups have used optomagnonic systems to prepare entanglement, [ 32 ] while others have specifically explored the related applications of magnon–phonon coupling. [ 33 ] Considering that the advantages of the cavity magnonics system and the cavity optomechanical system can be combined, a group has designed a hybrid optomechanical‐ferromagnet system to study magnon and photon blockade. [ 34 ] Thus, is it possible for long‐distance entanglement preparation with the combination of magnons and mechanical oscillators?…”

Section: Introductionmentioning

confidence: 99%

Preparation of Distant Quantum Entanglement and One‐way Quantum Steering in Hybrid Cavity‐Magnonics‐and‐Cavity‐Optomechanical Systems

Wan,

Lin,

Lin

et al. 2024

Annalen der Physik

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A hybrid system that combines cavity magnonics and cavity optomechanics is proposed to facilitate the generation of long‐distance entanglement and enable one‐way steering between magnons and phonons. This configuration involves two directly coupled cavities, with one interacting with magnons and the other coupling with a mechanical oscillator (i.e., phonons). By driving the microwave cavity with a weak squeezed vacuum field generated by a flux‐driven Josephson parametric amplifier, entanglement and one‐way steering can be further enhanced. Moreover, the results demonstrate that magnon–phonon entanglement and one‐way quantum steering exhibit robustness against temperature variations, which has significant implications for quantum information processing and storage.

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“…The coupling between SW and SAW is weak [18][19][20]. Therefore, the (anti)crossings of magnon and phonon dispersion branches should be analyzed carefully [21]. Additionally, the magnetoelastic interaction depends on the orientation of the wave vector relative to the direction of the static magnetic field, as well as the spatial profiles of the SAWs [12,22].…”

Section: Introductionmentioning

confidence: 99%

Investigation of phonons and magnons in [Ni₈₀Fe₂₀/Au/Co/Au] _N multilayers

Zdunek,

Shekhar,

Mielcarek

et al. 2024

J. Phys.: Condens. Matter

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The interaction between phonons and magnons is a rapidly developing area of research, particularly in the field of acoustic spintronics. To discuss this interaction, it is necessary to observe two different waves (acoustic and spin waves) with the same frequency and wavelength. In the Ni80Fe20/Au/Co/Au system deposited on a silicon substrate, we observe the interaction between spin waves and surface acoustic waves using Brillouin light scattering spectroscopy. As a result, we can selectively control (activate or deactivate) the magnetoelastic interaction between the fundamental spin wave mode and surface acoustic waves. This is achieved by adjusting the magnetostrictive layer thickness in the multilayer. We demonstrate that by adjusting the number of layers in a multilayer structure, it is possible to precisely control the dispersion of surface acoustic waves while having minimal impact on the fundamental spin wave mode.

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Magnon–phonon coupling: from fundamental physics to applications

Abstract: In recent decades, there are immense applications for bulk and few-layer magnetic insulators in biomedicine, data storage, and signal transfer. In these applications, the interaction between spin and lattice vibration...

Cited by 13 publications

References 130 publications

Controlling magnon-photon coupling in a planar geometry

Controlling magnon-photon coupling in a planar geometry

Preparation of Distant Quantum Entanglement and One‐way Quantum Steering in Hybrid Cavity‐Magnonics‐and‐Cavity‐Optomechanical Systems

Investigation of phonons and magnons in [Ni₈₀Fe₂₀/Au/Co/Au] _N multilayers

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Magnon–phonon coupling: from fundamental physics to applications

Abstract: In recent decades, there are immense applications for bulk and few-layer magnetic insulators in biomedicine, data storage, and signal transfer. In these applications, the interaction between spin and lattice vibration...

Cited by 13 publications

References 130 publications

Controlling magnon-photon coupling in a planar geometry

Controlling magnon-photon coupling in a planar geometry

Preparation of Distant Quantum Entanglement and One‐way Quantum Steering in Hybrid Cavity‐Magnonics‐and‐Cavity‐Optomechanical Systems

Investigation of phonons and magnons in [Ni80Fe20/Au/Co/Au] N multilayers

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Product

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Investigation of phonons and magnons in [Ni₈₀Fe₂₀/Au/Co/Au] _N multilayers