Nonlinear dynamics and magneto-elasticity of nanodrums near the phase transition
Makars \v{S}i\v{s}kinsAta Ke\c{s}keklerMaurits J. A. HoumesSamuel Ma\~nas-ValeroEugenio CoronadoYaroslav M. BlanterHerre S. J. van der ZantPeter G. SteenekenFarbod Alijani
Makars \v{S}i\v{s}kinsAta Ke\c{s}keklerMaurits J. A. Houmes
...+5
Farbod Alijani
Sep 2023
0被引用
0笔记
开学季活动火爆进行中，iPad、蓝牙耳机、拍立得、键盘鼠标套装等你来拿
摘要原文
Nanomechanical resonances of two-dimensional (2D) materials are sensitive probes for condensed-matter physics, offering new insights into magnetic and electronic phase transitions. Despite extensive research, the influence of the spin dynamics near a second-order 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 FePS$_3$-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 N\'{e}el temperature $T_{\rm{N}}$. 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.
