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Cavity magnomechanics.

Xufeng Zhang1, Chang-Ling Zou2, Liang Jiang3

  • 1Department of Electrical Engineering, Yale University, New Haven, CT 06511, USA.

Science Advances
|April 2, 2016
PubMed
Summary
This summary is machine-generated.

We introduce cavity magnomechanics, a new system using ferrimagnetic spheres to couple phonons and magnons. This platform enables novel interactions and applications in information transduction.

Keywords:
coherencemagnomechanical interactionmagnonphonon

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Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Materials science

Background:

  • Cavity optomechanics utilizes radiation pressure and electrostrictive forces for phonon-photon coupling.
  • Magnetic media possess magneostrictive forces, suggesting potential for phonon-magnon interactions.

Purpose of the Study:

  • To report the first demonstration of a coupled phonon-magnon system, termed cavity magnomechanics.
  • To explore coherent interactions and novel phenomena in this system.

Main Methods:

  • Utilized ferrimagnetic spheres to create a coupled phonon-magnon system.
  • Investigated interactions analogous to cavity optomechanics, including electromagnetically induced transparency and absorption.

Main Results:

  • Demonstrated coherent phonon-magnon interactions.
  • Observed strong hybridization between magnon and microwave photon modes.
  • Showcased features like parametric amplification, triple-resonant coupling, and phonon lasing.

Conclusions:

  • Established the fundamental principles of cavity magnomechanics.
  • Presented a novel platform for information transduction via coherent coupling of photons, phonons, and magnons.