Helimagnon Resonances in an Intrinsic Chiral Magnonic Crystal

Kurzanzeige
dc.contributor.authorWeiler, Mathias
dc.contributor.authorAqeel, Aisha
dc.contributor.authorMostovoy, Maxim
dc.contributor.authorLeonov, Andrey
dc.contributor.authorGeprägs, Stephan
dc.contributor.authorGross, Rudolf
dc.contributor.authorHuebl, Hans
dc.contributor.authorPalstra, Thomas T. M.
dc.contributor.authorGoennenwein, Sebastian T. B.
dc.date.accessioned2020-11-13T13:42:11Z
dc.date.available2020-11-13T13:42:11Z
dc.date.issued2017-12-08eng
dc.description.abstractWe experimentally study magnetic resonances in the helical and conical magnetic phases of the chiral magnetic insulator Cu2OSeO3 at the temperature T=5  K. Using a broadband microwave spectroscopy technique based on vector network analysis, we identify three distinct sets of helimagnon resonances in the frequency range 2  GHz≤f≤20  GHz with low magnetic damping α≤0.003. The extracted resonance frequencies are in accordance with calculations of the helimagnon band structure found in an intrinsic chiral magnonic crystal. The periodic modulation of the equilibrium spin direction that leads to the formation of the magnonic crystal is a direct consequence of the chiral magnetic ordering caused by the Dzyaloshinskii-Moriya interaction. The mode coupling in the magnonic crystal allows excitation of helimagnons with wave vectors that are multiples of the spiral wave vector.eng
dc.description.versionpublishedeng
dc.identifier.arxiv1705.02874v2eng
dc.identifier.doi10.1103/PhysRevLett.119.237204eng
dc.identifier.pmid29286698eng
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/51787
dc.language.isoengeng
dc.rightsterms-of-use
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dc.subject.ddc530eng
dc.titleHelimagnon Resonances in an Intrinsic Chiral Magnonic Crystaleng
dc.typeJOURNAL_ARTICLEeng
dspace.entity.typePublication
kops.citation.bibtex
@article{Weiler2017-12-08Helim-51787,
  year={2017},
  doi={10.1103/PhysRevLett.119.237204},
  title={Helimagnon Resonances in an Intrinsic Chiral Magnonic Crystal},
  number={23},
  volume={119},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Weiler, Mathias and Aqeel, Aisha and Mostovoy, Maxim and Leonov, Andrey and Geprägs, Stephan and Gross, Rudolf and Huebl, Hans and Palstra, Thomas T. M. and Goennenwein, Sebastian T. B.},
  note={Article Number: 237204}
}
kops.citation.iso690WEILER, Mathias, Aisha AQEEL, Maxim MOSTOVOY, Andrey LEONOV, Stephan GEPRÄGS, Rudolf GROSS, Hans HUEBL, Thomas T. M. PALSTRA, Sebastian T. B. GOENNENWEIN, 2017. Helimagnon Resonances in an Intrinsic Chiral Magnonic Crystal. In: Physical Review Letters. American Physical Society (APS). 2017, 119(23), 237204. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.119.237204deu
kops.citation.iso690WEILER, Mathias, Aisha AQEEL, Maxim MOSTOVOY, Andrey LEONOV, Stephan GEPRÄGS, Rudolf GROSS, Hans HUEBL, Thomas T. M. PALSTRA, Sebastian T. B. GOENNENWEIN, 2017. Helimagnon Resonances in an Intrinsic Chiral Magnonic Crystal. In: Physical Review Letters. American Physical Society (APS). 2017, 119(23), 237204. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.119.237204eng
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    <dcterms:abstract xml:lang="eng">We experimentally study magnetic resonances in the helical and conical magnetic phases of the chiral magnetic insulator Cu&lt;sub&gt;2&lt;/sub&gt;OSeO&lt;sub&gt;3&lt;/sub&gt; at the temperature T=5  K. Using a broadband microwave spectroscopy technique based on vector network analysis, we identify three distinct sets of helimagnon resonances in the frequency range 2  GHz≤f≤20  GHz with low magnetic damping α≤0.003. The extracted resonance frequencies are in accordance with calculations of the helimagnon band structure found in an intrinsic chiral magnonic crystal. The periodic modulation of the equilibrium spin direction that leads to the formation of the magnonic crystal is a direct consequence of the chiral magnetic ordering caused by the Dzyaloshinskii-Moriya interaction. The mode coupling in the magnonic crystal allows excitation of helimagnons with wave vectors that are multiples of the spiral wave vector.</dcterms:abstract>
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kops.sourcefieldPhysical Review Letters. American Physical Society (APS). 2017, <b>119</b>(23), 237204. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.119.237204deu
kops.sourcefield.plainPhysical Review Letters. American Physical Society (APS). 2017, 119(23), 237204. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.119.237204deu
kops.sourcefield.plainPhysical Review Letters. American Physical Society (APS). 2017, 119(23), 237204. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.119.237204eng
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source.bibliographicInfo.articleNumber237204eng
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source.identifier.eissn1079-7114eng
source.identifier.issn0031-9007eng
source.periodicalTitlePhysical Review Letterseng
source.publisherAmerican Physical Society (APS)eng

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