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Updated: Sep 23, 2025

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
Published on: May 23, 2017
Strain-Tuned Spin-Wave Interference in Micro- and Nanoscale Magnonic Interferometers
Andrey A Grachev1, Alexandr V Sadovnikov1, Sergey A Nikitov1,2
1Saratov State University, 410012 Saratov, Russia.
Abstract:
Here, we report on the experimental study of spin-wave propagation and interaction in the double-branched Mach-Zehnder interferometer (MZI) scheme. We show that the use of a piezoelectric plate (PP) with separated electrodes connected to each branch of the MZI leads to the tunable interference of the spin-wave signal at the output section. Using a finite element method, we carry out a physical investigation of the mechanisms of the impact of distributed deformations on the magnetic properties of YIG film. Micromagnetic simulations and finite-element modelling can explain the evolution of spin-wave interference patterns under strain induced via the application of an electric field to PP electrodes. We show how the multimode regime of spin-wave propagation is used in the interferometry scheme and how scaling to the nanometer size represents an important step towards a single-mode regime. Our findings provide a simple solution for the creation of tunable spin-wave interferometers for the magnonic logic paradigm.
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