Resonant driving of magnetization precession in a ferromagnetic layer by coherent monochromatic phonons

J. V. Jäger; A. V. Scherbakov; B. A. Glavin; A. S. Salasyuk; R. P. Campion; A. W. Rushforth; D. R. Yakovlev; A. V. Akimov; M. Bayer

Resonant driving of magnetization precession in a ferromagnetic layer by coherent monochromatic phonons

Mesoscale and Nanoscale Physics 2015-05-08 v1

Authors: J. V. Jäger , A. V. Scherbakov , B. A. Glavin , A. S. Salasyuk , R. P. Campion , A. W. Rushforth , D. R. Yakovlev , A. V. Akimov , M. Bayer

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Abstract

We realize resonant driving of the magnetization precession by monochromatic phonons in a thin ferromagnetic layer embedded into a phononic Fabry-Perot resonator. A femtosecond laser pulse excites resonant phonon modes of the structure in the 10-40 GHz frequency range. By applying an external magnetic field, we tune the precession frequency relative to the frequency of the phonons localized in the cavity and observe the enormous increase in the amplitude of the magnetization precession when the frequencies of free magnetization precession and phonons localized in the cavity are equal.

Keywords

magnetization precession monochromatic phonons ferromagnetic layer phononic Fabry-Perot resonator resonant driving femtosecond laser excitation

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@article{arxiv.1505.01729,
  title  = {Resonant driving of magnetization precession in a ferromagnetic layer by coherent monochromatic phonons},
  author = {J. V. Jäger and A. V. Scherbakov and B. A. Glavin and A. S. Salasyuk and R. P. Campion and A. W. Rushforth and D. R. Yakovlev and A. V. Akimov and M. Bayer},
  journal= {arXiv preprint arXiv:1505.01729},
  year   = {2015}
}

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11 pages, 3 figures

Resonant driving of magnetization precession in a ferromagnetic layer by coherent monochromatic phonons

Abstract

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