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Experimental Realization of Synthetic Magnonic Lattice via Floquet Engineering
Amin Pishehvar1, Jayakrishnan M P Nair2, Zhaoyou Wang3
1Northeastern University, Department of Electrical and Computer Engineering, Boston, Massachusetts 02115, USA.
Physical Review Letters
|August 10, 2026
Summary
Researchers created a synthetic dimension in magnonic systems using Floquet modulation. This enables scalable, programmable control of spin waves in yttrium iron garnet (YIG) devices for advanced information processing.
Area of Science:
- Spintronics and Quantum Information Science
- Condensed Matter Physics
Background:
- Magnonic systems utilize spin waves for information processing, offering low dissipation and nonlinearities.
- Scaling challenges exist for magnonic circuits, especially with difficult-to-pattern materials like yttrium iron garnet (YIG).
Purpose of the Study:
- To experimentally demonstrate a scalable approach for controlling magnonic systems.
- To engineer reconfigurable magnonic devices using synthetic dimensions.
Main Methods:
- Coupling multimode magnon resonances in the frequency domain via time-periodic Floquet modulation.
- Utilizing yttrium iron garnet (YIG) devices to create a synthetic dimension.
Main Results:
- Achieved electronically tunable interactions between discrete magnon modes within a single YIG device.
- Formed a reconfigurable mode-space lattice supporting functionalities like Bloch oscillations.
- Demonstrated high-dimensional magnonic dynamics without increasing device footprint.
Conclusions:
- Synthetic dimensions offer a scalable and programmable route for integrated magnonic technologies.
- This approach enables the engineering of emergent phenomena in magnonic systems.
- Advances magnonic systems as a platform for novel information processing and fundamental physics exploration.
