Control of magnon–photon coupling by spin torque

A Rai, MB Jungfleisch - Journal of Magnetism and Magnetic Materials, 2023 - Elsevier
We demonstrate the influence of damping and field-like torques in the magnon–photon
coupling process by classically integrating the generalized Landau–Lifshitz–Gilbert …

Coherent spin pumping in a strongly coupled magnon-magnon hybrid system

Y Li, W Cao, VP Amin, Z Zhang, J Gibbons, J Sklenar… - Physical review …, 2020 - APS
We experimentally identify coherent spin pumping in the magnon-magnon hybrid modes of
yttrium iron garnet/permalloy (YIG/Py) bilayers. By reducing the YIG and Py thicknesses, the …

Optical manipulation of a magnon-photon hybrid system

C Braggio, G Carugno, M Guarise, A Ortolan… - Physical Review Letters, 2017 - APS
We demonstrate an all-optical method for manipulating the magnetization in a 1-mm yttrium-
iron-garnet (YIG) sphere placed in a∼ 0.17 T uniform magnetic field. A harmonic of the …

Spin pumping in strongly coupled magnon-photon systems

H Maier-Flaig, M Harder, R Gross, H Huebl… - Physical Review B, 2016 - APS
We experimentally investigate magnon polaritons arising in ferrimagnetic resonance
experiments in a microwave cavity with a tunable quality factor. To this end, we …

Spin-transfer-assisted parametric pumping of magnons in yttrium iron garnet

T Frostad, HL Skarsvåg, A Qaiumzadeh, A Brataas - Physical Review B, 2022 - APS
The combination of parametric pumping and spin-transfer torque is a powerful approach that
enables high-level control over magnetic excitations in thin-film ferromagnets. The excitation …

Tunable magnon-photon coupling in a compensating ferrimagnet—from weak to strong coupling

H Maier-Flaig, M Harder, S Klingler, Z Qiu… - Applied Physics …, 2017 - pubs.aip.org
We experimentally study the magnon-photon coupling in a system consisting of a
compensating ferrimagnet gadolinium iron garnet (GdIG) and a three-dimensional …

Controllable switching of the magnonic excitation based on the magnetostrictive effect

H Xiong - Applied Physics Letters, 2024 - pubs.aip.org
The magnetostrictive effect in a yttrium iron garnet sphere induces a coherent interaction
between magnetization and elastic strain. The dispersive-type coupling between the …

Controlling magnon-photon coupling in a planar geometry

D Wagle, A Rai, MT Kaffash… - Journal of Physics …, 2024 - iopscience.iop.org
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 …

Negative gilbert damping

Y Cao, P Yan - Physical Review B, 2022 - APS
Modern ferromagnetism theory is based on the Landau-Lifshitz-Gilbert equation that
governs the dynamics of magnetic moment in a ferromagnet. As a deep-rooted notion, the …

Magnon polarons induced by a magnetic field gradient

N Vidal-Silva, E Aguilera, A Roldán-Molina, RA Duine… - Physical Review B, 2020 - APS
In this paper, we report the theoretical possibility of generating magnon-polaron excitations
through a space-varying magnetic field. The spatial dependence of the magnetic field in the …