Transmission of spin waves in ordered FeRh epitaxial thin films

Takamasa Usami; Ippei Suzuki; Mitsuru Itoh; Tomoyasu Taniyama

doi:10.1063/1.4953464

Transmission of spin waves in ordered FeRh epitaxial thin films

Materials Science 2016-11-01 v1

Authors: Takamasa Usami , Ippei Suzuki , Mitsuru Itoh , Tomoyasu Taniyama

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Abstract

We report on B2-ordering dependence of magnetostatic surface spin waves in ferromagnetic FeRh at room temperature. Spin waves transmit over a distance longer than 21 {\mu}m in highly ordered FeRh alloys even with relatively large spin-orbit interaction. The long-range transmission likely arises from the induced Rh moments of the ordered FeRh due to ferromagnetic exchange interaction between Fe and Rh. The results indicate a potential of using FeRh in spintronic and magnonic applications by integrating with other fascinating magnetic characteristics of FeRh such as electric field induced magnetic phase transition.

Keywords

spin waves FeRh B2-ordering magnetostatic surface spin waves spintronics magnonics epitaxial thin films

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@article{arxiv.1605.03798,
  title  = {Transmission of spin waves in ordered FeRh epitaxial thin films},
  author = {Takamasa Usami and Ippei Suzuki and Mitsuru Itoh and Tomoyasu Taniyama},
  journal= {arXiv preprint arXiv:1605.03798},
  year   = {2016}
}

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5 pages, 4 figures

Transmission of spin waves in ordered FeRh epitaxial thin films

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