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Experimental realization of a passive Gigahertz frequency-division demultiplexer for magnonic logic networks

マグノン論理回路におけるギガヘルツ受動的ディマルチプレクサの実験室実証

Heussner, F.*; Talmelli, G.*; Geilen, M.*; Heinz, B.*; Br$"a$cher, T.*; Meyer, T.*; Ciubotaru, F.*; Adelmann, C.*; 山本 慧; Serga, A. A.*; Hillebrands, B.*; Pirro, P.*

Heussner, F.*; Talmelli, G.*; Geilen, M.*; Heinz, B.*; Br$"a$cher, T.*; Meyer, T.*; Ciubotaru, F.*; Adelmann, C.*; Yamamoto, Kei; Serga, A. A.*; Hillebrands, B.*; Pirro, P.*

The emerging field of magnonics employs spin waves and their quanta, magnons, to implement wave-based computing on the micro- and nanoscales. Multi-frequency magnon networks would allow for parallel data processing within single logic elements whereas this is not the case with conventional transistor-based electric logic. However, a lack of experimental proven solutions to efficiently combine and separate magnons of different frequencies has impeded the intensive use of this concept. In this Letter, the experimental realization of a spin-wave demultiplexer enabling frequency-dependent separation of magnetic signals in the GHz range is demonstrated. The device is based on two-dimensional magnon transport in the form of spin-wave beams in unpatterned magnetic films. The intrinsic frequency-dependence of the beam direction is exploited to realize a passive functioning obviating an external control and additional power consumption. This approach paves the way to magnonic multiplexing circuits enabling simultaneous information transport and processing.

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パーセンタイル:100

分野:Materials Science, Multidisciplinary

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