Control of magnon-photon coupling by spin torque

Anish Rai; Benjamin Jungfleisch

doi:10.1117/12.2677252

28 September 2023 Control of magnon-photon coupling by spin torque

Anish Rai, Benjamin Jungfleisch

Proceedings Volume PC12656, Spintronics XVI; PC126561X (2023) https://doi.org/10.1117/12.2677252
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

Magnons, the collective excitations of spin waves in magnetically ordered systems, can couple with microwave photons via dipolar interaction, demonstrating level repulsion of the hybridized modes. However, the hybridized modes can also coalesce, resulting in level attraction. Efficient control of magnon-photon coupling, for example, by spin torque, is important for creating hybrid magnonic quantum systems. Here, we theoretically examine the role of damping and field-like torques in the magnon-photon coupling process [J. Magn. Magn. Mater 571, 170558 (2023)]. Our analysis suggests that enhancing the coupling strength for level repulsion is possible if a certain magnitude and direction of the dc current density is reached. Research supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-SC0020308.

Conference Presentation

Citation Download Citation

Anish Rai and Benjamin Jungfleisch "Control of magnon-photon coupling by spin torque", Proc. SPIE PC12656, Spintronics XVI, PC126561X (28 September 2023); https://doi.org/10.1117/12.2677252

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