Hybrid Magnonics in Hybrid Perovskite Antiferromagnets: Article No. 1834

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

Research output: Contribution to journalArticlepeer-review

10 Scopus Citations

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.
Original languageAmerican English
Number of pages7
JournalNature Communications
Volume14
DOIs
StatePublished - 2023

NREL Publication Number

  • NREL/JA-5900-83150

Keywords

  • hybrid perovskite
  • layered 2D antiferromagnets
  • magnonics
  • quantum information science

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