Hybrid magnonics in hybrid perovskite antiferromagnets

Andrew H Comstock; Chung-Tao Chou; Zhiyu Wang; Tonghui Wang; Ruyi Song; Joseph Sklenar; Aram Amassian; Wei Zhang; Haipeng Lu; Luqiao Liu; Matthew C Beard; Dali Sun

doi:10.1038/s41467-023-37505-w

Hybrid magnonics in hybrid perovskite antiferromagnets

Nat Commun. 2023 Apr 1;14(1):1834. doi: 10.1038/s41467-023-37505-w.

Authors

Andrew H Comstock^#^{1

2}, Chung-Tao Chou^#³, Zhiyu Wang⁴, Tonghui Wang^{2

5}, Ruyi Song⁶, Joseph Sklenar⁷, Aram Amassian^{2

5}, Wei Zhang⁸, Haipeng Lu^{9

10}, Luqiao Liu¹¹, Matthew C Beard¹², Dali Sun^{13

14}

Affiliations

¹ Department of Physics, North Carolina State University, Raleigh, NC, 27695, USA.
² Organic and Carbon Electronics Laboratory (ORACEL), North Carolina State University, Raleigh, NC, 27695, USA.
³ Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
⁴ Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Kowloon, 999077, Hong Kong (SAR), China.
⁵ Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695, USA.
⁶ Department of Mechanical Engineering and Material Science, Duke University, Durham, NC, 27708, USA.
⁷ Department of Physics and Astronomy, Wayne State University, Detroit, MI, 48202, USA.
⁸ Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
⁹ Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Kowloon, 999077, Hong Kong (SAR), China. haipenglu@ust.hk.
¹⁰ Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA. haipenglu@ust.hk.
¹¹ Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA. luqiao@mit.edu.
¹² Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA. matt.beard@nrel.gov.
¹³ Department of Physics, North Carolina State University, Raleigh, NC, 27695, USA. dsun4@ncsu.edu.
¹⁴ Organic and Carbon Electronics Laboratory (ORACEL), North Carolina State University, Raleigh, NC, 27695, USA. dsun4@ncsu.edu.

^# Contributed equally.

Abstract

Hybrid magnonic systems are a newcomer for pursuing coherent information processing owing to their rich quantum engineering functionalities. One prototypical example is hybrid magnonics in antiferromagnets with an easy-plane anisotropy that resembles a quantum-mechanically mixed two-level spin system through the coupling of acoustic and optical magnons. Generally, the coupling between these orthogonal modes is forbidden due to their opposite parity. Here we show that the Dzyaloshinskii-Moriya-Interaction (DMI), a chiral antisymmetric interaction that occurs in magnetic systems with low symmetry, can lift this restriction. We report that layered hybrid perovskite antiferromagnets with an interlayer DMI can lead to a strong intrinsic magnon-magnon coupling strength up to 0.24 GHz, which is four times greater than the dissipation rates of the acoustic/optical modes. Our work shows that the DMI in these hybrid antiferromagnets holds promise for leveraging magnon-magnon coupling by harnessing symmetry breaking in a highly tunable, solution-processable layered magnetic platform.

Abstract

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