Stimulated Amplification of Propagating Spin Waves

D. Breitbach; M. Schneider; B. Heinz; F. Kohl; J. Maskill; L. Scheuer; R. O. Serha; T. Brächer; B. Lägel; C. Dubs; V. S. Tiberkevich; A. N. Slavin; A. A. Serga; B. Hillebrands; A. V. Chumak; P. Pirro

doi:10.1103/PhysRevLett.131.156701

Stimulated Amplification of Propagating Spin Waves

D. Breitbach (Corresponding author)
, M. Schneider
, B. Heinz
, F. Kohl
, J. Maskill
, L. Scheuer
, R. O. Serha
, T. Brächer
, B. Lägel
, C. Dubs
, V. S. Tiberkevich
, A. N. Slavin
, A. A. Serga
, B. Hillebrands
, A. V. Chumak
, P. Pirro

Nanomagnetism and Magnonics

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

Spin-wave amplification techniques are key to the realization of magnon-based computing concepts. We introduce a novel mechanism to amplify spin waves in magnonic nanostructures. Using the technique of rapid cooling, we create a nonequilibrium state in excess of high-energy magnons and demonstrate the stimulated amplification of an externally seeded, propagating spin wave. Using an extended kinetic model, we qualitatively show that the amplification is mediated by an effective energy flux of high energy magnons into the low energy propagating mode, driven by a nonequilibrium magnon distribution.

Original language	English
Article number	156701
Number of pages	7
Journal	Physical Review Letters
Volume	131
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.131.156701
Publication status	Published - 13 Oct 2023

Funding

This research was funded by the European Research Council within the Starting Grant No. 101042439 “CoSpiN” and No. 678309 “MagnonCircuits,” by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) within the Transregional Collaborative Research Center–TRR 173–268565370 “” (project B01 and B04) and the project 271741898 and by the Austrian Science Fund (FWF) through Project No. I 4696-N. The authors acknowledge support by the Max Planck Graduate Center with the Johannes Gutenberg-Universität Mainz (MPGC). This work was supported in part by the Air Force Office of Scientific Research under the MURI Grant No. FA9550-19-1-0307.

Austrian Fields of Science 2012

103017 Magnetism

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10.1103/PhysRevLett.131.156701

Cite this

Breitbach, D., Schneider, M., Heinz, B., Kohl, F., Maskill, J., Scheuer, L., Serha, R. O., Brächer, T., Lägel, B., Dubs, C., Tiberkevich, V. S., Slavin, A. N., Serga, A. A., Hillebrands, B., Chumak, A. V., & Pirro, P. (2023). Stimulated Amplification of Propagating Spin Waves. Physical Review Letters, 131(15), Article 156701. https://doi.org/10.1103/PhysRevLett.131.156701

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title = "Stimulated Amplification of Propagating Spin Waves",

abstract = "Spin-wave amplification techniques are key to the realization of magnon-based computing concepts. We introduce a novel mechanism to amplify spin waves in magnonic nanostructures. Using the technique of rapid cooling, we create a nonequilibrium state in excess of high-energy magnons and demonstrate the stimulated amplification of an externally seeded, propagating spin wave. Using an extended kinetic model, we qualitatively show that the amplification is mediated by an effective energy flux of high energy magnons into the low energy propagating mode, driven by a nonequilibrium magnon distribution.",

author = "D. Breitbach and M. Schneider and B. Heinz and F. Kohl and J. Maskill and L. Scheuer and Serha, \{R. O.\} and T. Br{\"a}cher and B. L{\"a}gel and C. Dubs and Tiberkevich, \{V. S.\} and Slavin, \{A. N.\} and Serga, \{A. A.\} and B. Hillebrands and Chumak, \{A. V.\} and P. Pirro",

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AU - Schneider, M.

AU - Heinz, B.

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AU - Scheuer, L.

AU - Serha, R. O.

AU - Brächer, T.

AU - Lägel, B.

AU - Dubs, C.

AU - Tiberkevich, V. S.

AU - Slavin, A. N.

AU - Serga, A. A.

AU - Hillebrands, B.

AU - Chumak, A. V.

AU - Pirro, P.

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AB - Spin-wave amplification techniques are key to the realization of magnon-based computing concepts. We introduce a novel mechanism to amplify spin waves in magnonic nanostructures. Using the technique of rapid cooling, we create a nonequilibrium state in excess of high-energy magnons and demonstrate the stimulated amplification of an externally seeded, propagating spin wave. Using an extended kinetic model, we qualitatively show that the amplification is mediated by an effective energy flux of high energy magnons into the low energy propagating mode, driven by a nonequilibrium magnon distribution.

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Stimulated Amplification of Propagating Spin Waves

Abstract

Funding

Austrian Fields of Science 2012

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Functional layers of nm-thick YIG films and microstructures

MagnonCircuits: Nano-Scale Magnonic Circuits for Novel Computing Systems

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Stimulated Amplification of Propagating Spin Waves

Abstract

Funding

Austrian Fields of Science 2012

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Projects

Functional layers of nm-thick YIG films and microstructures

MagnonCircuits: Nano-Scale Magnonic Circuits for Novel Computing Systems

Cite this