Tunable Strong Coupling of Mechanical Resonance between Spatially Separated FePS3Nanodrums
M. Siskins (Kavli institute of nanoscience Delft, TU Delft - QN/Steeneken Lab, TU Delft - Dynamics of Micro and Nano Systems)
E. Sokolovskaya (Kavli institute of nanoscience Delft)
Martin Lee (Kavli institute of nanoscience Delft, TU Delft - QN/Steeneken Lab)
S. Manãs-Valero (Universidad de Valencia (ICMol))
D. Davidovikj (Kavli institute of nanoscience Delft)
H. S J van der Zant (Kavli institute of nanoscience Delft, TU Delft - QN/van der Zant Lab)
Peter Steeneken (TU Delft - QN/Steeneken Lab, Kavli institute of nanoscience Delft, TU Delft - Dynamics of Micro and Nano Systems, TU Delft - Precision and Microsystems Engineering)
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Abstract
Coupled nanomechanical resonators made of two-dimensional materials are promising for processing information with mechanical modes. However, the challenge for these systems is to control the coupling. Here, we demonstrate strong coupling of motion between two suspended membranes of the magnetic 2D material FePS3. We describe a tunable electromechanical mechanism for control over both the resonance frequency and the coupling strength using a gate voltage electrode under each membrane. We show that the coupling can be utilized for transferring data between drums by amplitude modulation. Finally, we also study the temperature dependence of the coupling and how it is affected by the antiferromagnetic phase transition characteristic of this material. The presented electrical coupling of resonant magnetic 2D membranes holds the promise of transferring mechanical energy over a distance at low electrical power, thus enabling novel data readout and information processing technologies.
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