Magnetization dynamics triggered by surface acoustic waves

DOI PDF 5 Citations
  • S. Davis
    University of Nebraska-Lincoln Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, , Lincoln, Nebraska 68588-0299, USA
  • A. Baruth
    University of Nebraska-Lincoln Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, , Lincoln, Nebraska 68588-0299, USA
  • S. Adenwalla
    University of Nebraska-Lincoln Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, , Lincoln, Nebraska 68588-0299, USA

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<jats:p>Investigations into fast magnetization switching are of both fundamental and technological interest. Here we present a low-power, remote method for strain driven magnetization switching. A surface acoustic wave propagates across an array of ferromagnetic elements, and the resultant strain switches the magnetization from the easy axis into the hard axis direction. Investigations as a function of applied magnetic field as well as unidirectional anisotropy (the exchange bias) reveal excellent agreement with prediction, confirming the viability of this method.</jats:p>

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