Abstract
We propose and experimentally demonstrate a means of broadband phonon-magnon interconversion that relies on combining magnetoelastic coupling with translational symmetry breaking in the important experimental material yttrium iron garnet (YIG). As well as being of interest for its basic physics, this quasiparticle coupling mechanism adds to the range of effects that potentially find useful application in hybrid solid-state quantum computing devices as well as low-power wave-based classical computing architectures.
Highlights
Until now, a notable gap has existed in the catalogue of magnonic conversion effects
The effect is predicated on a new quasiparticle coupling mechanism with two essential ingredients: magnetoelastic coupling of sufficient strength and appropriate symmetry in the magnonic host material; and energy-momentum matching between the phonons and the magnons
The key requirement of magnetoelastic coupling is present to exactly the right degree in the magnetic material we choose for our experiments, the popular electrically insulating ferrimagnet yttrium iron garnet or YIG (Y3Fe5O12)
Summary
Until now, a notable gap has existed in the catalogue of magnonic conversion effects. We mimic this approach by using a piezoelectric transducer to send a narrow pulsed microwave acoustic beam which impinges locally on a magnonic waveguide fashioned from a YIG film that is subject to an externally applied magnetic field.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
