The role of Snell’s law for a magnonic majority gate
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Ross_The role of Snell's.pdf
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Author(s)
Kanazawa, Naoki
Goto, Taichi
Sekiguchi, Koji
Granovsky, Alexander B.
Takagi, Hiroyuki
Nakamura, Yuichi
Uchida, Hironaga
Inoue, Mitsuteru
Ross, Caroline A
Date Issued
August 2017
Journal
Scientific Reports
Publisher
Nature Publishing Group
Citation
Kanazawa, Naoki et al. “The Role of Snell’s Law for a Magnonic Majority Gate.” Scientific Reports 7, 1 (August 2017): 7898 © 2017 The Author(s)
Version
Final published version
Abstract
In the fifty years since the postulation of Moore's Law, the increasing energy consumption in silicon electronics has motivated research into emerging devices. An attractive research direction is processing information via the phase of spin waves within magnonic-logic circuits, which function without charge transport and the accompanying heat generation. The functional completeness of magnonic logic circuits based on the majority function was recently proved. However, the performance of such logic circuits was rather poor due to the difficulty of controlling spin waves in the input junction of the waveguides. Here, we show how Snell's law describes the propagation of spin waves in the junction of a Ψ-shaped magnonic majority gate composed of yttrium iron garnet with a partially metallized surface. Based on the analysis, we propose a magnonic counterpart of a core-cladding waveguide to control the wave propagation in the junction. This study has therefore experimentally demonstrated a fundamental building block of a magnonic logic circuit.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1038/s41598-017-08114-7
