Cavity-magnon-polariton spectroscopy of strongly hybridized electro-nuclear spin excitations in LiHoF4
We first present a formalism that incorporates the input-output formalism and the linear response theory to employ cavity-magnon-polariton coupling as a spectroscopic tool for investigating strongly hybridized electro-nuclear spin excitations. A microscopic relation between the generalized susceptib...
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Veröffentlicht in: | Scientific reports 2024-10, Vol.14 (1), p.25227-14, Article 25227 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We first present a formalism that incorporates the input-output formalism and the linear response theory to employ cavity-magnon-polariton coupling as a spectroscopic tool for investigating strongly hybridized electro-nuclear spin excitations. A microscopic relation between the generalized susceptibility and the scattering parameter
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11
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in strongly hybridized cavity-magnon-polariton systems has been derived without resorting to semi-classical approximations. The formalism is then applied to both analyze and simulate a specific systems comprising a model quantum Ising magnet (
LiHoF
4
) and a high-finesse 3D re-entrant cavity resonator. Quantitative information on the electro-nuclear spin states in
LiHoF
4
is extracted, and the experimental observations across a broad parameter range were numerically reproduced, including an external magnetic field traversing a quantum critical point. The method potentially opens a new avenue not only for further studies on the quantum phase transition in
LiHoF
4
but also for a wide range of complex magnetic systems. |
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ISSN: | 2045-2322 2045-2322 |
DOI: | 10.1038/s41598-024-75978-x |