Hybrid Magnonics in Hybrid Perovskite Antiferromagnets
April 1, 2023
Layered hybrid perovskite antiferromagnets with an interlayer Dzyaloshinskii—Moriya-Interaction (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. This 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.
Scientific Achievement
Hybrid magnonic systems are a newcomer for pursuing coherent information processing owing to their rich quantum engineering functionalities. Generally, hybrid magnonics are forbidden due to their opposite parity. Here we show that the DMI, a chiral antisymmetric interaction that occurs in magnetic systems with low symmetry, can lift this restriction. We report that layered hybrid perovskite antiferromagnets (HOIP-AFMs) with an interlayer DMI can lead to a strong intrinsic magnon-magnon coupling.
Significance and Impact
Our work shows that the DMI in these HOIP-AFMs holds promise for leveraging hybrid magnonics by harnessing symmetry breaking in a highly tunable, solution processable layered magnetic platform.
Research Details
- A large, intrinsic, exceptional magnon-magnon coupling in a new HOIP-AFMs platform has a more accessible frequency range (i.e., GHz).
- An optical magnon mode (dark magnon) existing far above the saturation field is observed, activated by antisymmetric nature of the DMI.
Related People
Matthew Beard
National Renewable Energy Laboratory
Dali Sun
North Carolina State University
