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  Magnetic resonance imaging of spin-wave transport and interference in a magnetic insulator

Bertelli, I., Carmiggelt, J. J., Yu, T., Simon, B. G., Pothoven, C. C., Bauer, G. E. W., et al. (2020). Magnetic resonance imaging of spin-wave transport and interference in a magnetic insulator. Science Advances, 6(46): eabd3556. doi:10.1126/sciadv.abd3556.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-2C0D-B Version Permalink: http://hdl.handle.net/21.11116/0000-0007-606C-4
Genre: Journal Article

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This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
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© the Author(s), some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
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abd3556_SM.pdf (Supplementary material), 687KB
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Supplementary Text, Sections S1 to S3, Figs. S1 to S9, References
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https://arxiv.org/abs/2004.07746 (Preprint)
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https://dx.doi.org/10.1126/sciadv.abd3556 (Publisher version)
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 Creators:
Bertelli, I.1, 2, Author
Carmiggelt, J. J.1, Author
Yu, T.1, 3, Author              
Simon, B. G.1, Author
Pothoven, C. C.1, Author
Bauer, G. E. W.1, 4, Author
Blanter, Y. M.1, Author
Aarts, J.2, Author
van der Sar, T.1, Author
Affiliations:
1Department of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, ou_persistent22              
2Huygens - Kamerlingh Onnes Laboratorium, Leiden University, ou_persistent22              
3Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              
4Institute for Materials Research and WPI-AIMR and CSRN, Tohoku University, ou_persistent22              

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 Abstract: Spin waves—the elementary excitations of magnetic materials—are prime candidate signal carriers for low-dissipation information processing. Being able to image coherent spin-wave transport is crucial for developing interference-based spin-wave devices. We introduce magnetic resonance imaging of the microwave magnetic stray fields that are generated by spin waves as a new approach for imaging coherent spin-wave transport. We realize this approach using a dense layer of electronic sensor spins in a diamond chip, which combines the ability to detect small magnetic fields with a sensitivity to their polarization. Focusing on a thin-film magnetic insulator, we quantify spin-wave amplitudes, visualize spin-wave dispersion and interference, and demonstrate time-domain measurements of spin-wave packets. We theoretically explain the observed anisotropic spin-wave patterns in terms of chiral spin-wave excitation and stray-field coupling to the sensor spins. Our results pave the way for probing spin waves in atomically thin magnets, even when embedded between opaque materials.

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Language(s): eng - English
 Dates: 2020-06-162020-09-252020-11-11
 Publication Status: Published online
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 Rev. Type: Peer
 Identifiers: arXiv: 2004.07746
DOI: 10.1126/sciadv.abd3556
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Title: Science Advances
  Other : Sci. Adv.
Source Genre: Journal
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Publ. Info: Washington : AAAS
Pages: - Volume / Issue: 6 (46) Sequence Number: eabd3556 Start / End Page: - Identifier: ISSN: 2375-2548
CoNE: https://pure.mpg.de/cone/journals/resource/2375-2548