Thermo-Magnetostrictive Effect for Driving Antiferromagnetic Two-Dimensional Material Resonators

Thermo-Magnetostrictive Effect for Driving Antiferromagnetic Two-Dimensional Material Resonators

Baglioni, G. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft)
Siskins, M. (TU Delft Dynamics of Micro and Nano Systems; Kavli institute of nanoscience Delft)
Houmes, M.J.A. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft)
Lee, M. (TU Delft QN/Steeneken Lab; Kavli institute of nanoscience Delft)
Shin, D. (TU Delft Dynamics of Micro and Nano Systems; Kavli institute of nanoscience Delft)
Mañas Valero, S. (TU Delft QN/vanderSarlab; TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft; Universidad de Valencia (ICMol))
Coronado, Eugenio (Universidad de Valencia (ICMol))
Blanter, Y.M. (TU Delft QN/Blanter Group; Kavli institute of nanoscience Delft)
van der Zant, H.S.J. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft)
Steeneken, P.G. (TU Delft Dynamics of Micro and Nano Systems; TU Delft QN/Steeneken Lab; Kavli institute of nanoscience Delft)

2023

Magnetostrictive coupling has recently attracted interest as a sensitive method for studying magnetism in two-dimensional (2D) materials by mechanical means. However, its application in high-frequency magnetic actuators and transducers requires rapid modulation of the magnetic order, which is difficult to achieve with external magnets, especially when dealing with antiferromagnets. Here, we optothermally modulate the magnetization in antiferromagnetic 2D material membranes of metal phosphor trisulfides (MPS₃), to induce a large high-frequency magnetostrictive driving force. From the analysis of the temperature-dependent resonance amplitude, we provide evidence that the force is due to a thermo-magnetostrictive effect, which significantly increases near the Neél temperature, due to the strong temperature dependence of the magnetization. By studying its angle dependence, we find the effect is observed to follow anisotropic magnetostriction of the crystal lattice. The results show that the thermo-magnetostrictive effect results in a strongly enhanced thermal expansion force near the critical temperature of magnetostrictive 2D materials, which can enable more efficient actuation of nano-magnetomechanical devices and can also provide a route for studying the high-frequency coupling among magnetic, mechanical, and thermodynamic degrees of freedom down to the 2D limit.

magnetic materials
nanomechanics
phase transitions
two-dimensional materials

http://resolver.tudelft.nl/uuid:998ae873-aeb0-4950-90c6-80a5ffe5dd5d

https://doi.org/10.1021/acs.nanolett.3c01610

1530-6984

Nano Letters: a journal dedicated to nanoscience and nanotechnology, 23 (15), 6973-6978

Institutional Repository

journal article

© 2023 G. Baglioni, M. Siskins, M.J.A. Houmes, M. Lee, D. Shin, S. Mañas Valero, Eugenio Coronado, Y.M. Blanter, H.S.J. van der Zant, P.G. Steeneken