Nonlinear dynamics and magneto-elasticity of nanodrums near the phase transition

Makars Šiškins (), Ata Keşkekler, Maurits J. A. Houmes, Samuel Mañas-Valero, Maciej Koperski, Eugenio Coronado, Yaroslav M. Blanter, Herre S. J. Zant, Peter G. Steeneken and Farbod Alijani ()
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Makars Šiškins: Delft University of Technology
Ata Keşkekler: Delft University of Technology
Maurits J. A. Houmes: Delft University of Technology
Samuel Mañas-Valero: Delft University of Technology
Maciej Koperski: National University of Singapore
Eugenio Coronado: Universitat de València
Yaroslav M. Blanter: Delft University of Technology
Herre S. J. Zant: Delft University of Technology
Peter G. Steeneken: Delft University of Technology
Farbod Alijani: Delft University of Technology

Nature Communications, 2025, vol. 16, issue 1, 1-9

Abstract: Abstract Nanomechanical resonances of two-dimensional (2D) materials are sensitive probes for condensedmatter physics, offering new insights into magnetic and electronic phase transitions. Despite extensive research, the influence of the spin dynamics near a phase transition on the nonlinear dynamics of 2D membranes has remained largely unexplored. Here, we investigate nonlinear magneto-mechanical coupling to antiferromagnetic order in suspended FePS3-based heterostructure membranes. By monitoring the motion of these membranes as a function of temperature, we observe characteristic features in both nonlinear stiffness and damping close to the Néel temperature TN. We account for these experimental observations with an analytical magnetostriction model in which these nonlinearities emerge from a coupling between mechanical and magnetic oscillations, demonstrating that magneto-elasticity can lead to nonlinear damping. Our findings thus provide insights into the thermodynamics and magneto-mechanical energy dissipation mechanisms in nanomechanical resonators due to the material’s phase change and magnetic order relaxation.

Date: 2025
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DOI: 10.1038/s41467-025-57317-4

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