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Condensed Matter > Materials Science

arXiv:2307.14447 (cond-mat)
[Submitted on 26 Jul 2023]

Title:Tunable Magnon-Photon Coupling by Magnon Band Gap in a Layered Hybrid Perovskite Antiferromagnet

Authors:Yi Li, Timothy Draher, Andrew H. Comstock, Yuzan Xiong, Md Azimul Haque, Elham Easy, Jiang-Chao Qian, Tomas Polakovic, John E. Pearson, Ralu Divan, Jian-Min Zuo, Xian Zhang, Ulrich Welp, Wai-Kwong Kwok, Axel Hoffmann, Joseph M. Luther, Matthew C. Beard, Dali Sun, Wei Zhang, Valentine Novosad
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Abstract:Tunability of coherent coupling between fundamental excitations is an important prerequisite for expanding their functionality in hybrid quantum systems. In hybrid magnonics, the dipolar interaction between magnon and photon usually persists and cannot be switched off. Here, we demonstrate this capability by coupling a superconducting resonator to a layered hybrid perovskite antiferromagnet, which exhibits a magnon band gap due to its intrinsic Dzyaloshinskii-Moriya interaction. The pronounced temperature sensitivity of the magnon band gap location allows us to set the photon mode within the gap and to disable magnon-photon hybridization. When the resonator mode falls into the magnon band gap, the resonator damping rate increases due to the nonzero coupling to the detuned magnon mode. This phenomena can be used to quantify the magnon band gap using an analytical model. Our work brings new opportunities in controlling coherent information processing with quantum properties in complex magnetic materials.
Comments: 8 pages, 4 figures
Subjects: Materials Science (cond-mat.mtrl-sci); Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Cite as: arXiv:2307.14447 [cond-mat.mtrl-sci]
  (or arXiv:2307.14447v1 [cond-mat.mtrl-sci] for this version)
  https://doi.org/10.48550/arXiv.2307.14447

Submission history

From: Yi Li [view email]
[v1] Wed, 26 Jul 2023 18:37:58 UTC (1,768 KB)
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