View in EDS

Perturbative input–output theory of floquet cavity magnonics and magnon energy shifts.

Saved in:
Bibliographic Details
Title: Perturbative input–output theory of floquet cavity magnonics and magnon energy shifts.
Authors: Aguiar, T1 (AUTHOR) taguiarcf@gmail.com, de Oliveira, M C1 (AUTHOR) marcos@ifi.unicamp.br
Source: New Journal of Physics. 2026, Vol. 28 Issue 4, p1-16. 16p.
Subjects: Magnons, Zeeman effect, Spin waves, Transmittance (Physics), Reflectance spectroscopy
Abstract: We develop a perturbative input–output formalism to compute the reflectance and transmittance spectra of cavity magnonics systems subject to a Floquet modulation. The method exploits the strong hierarchy between the magnetic-dipole couplings transverse (drive field) and parallel (modulation field) to the static bias field, which naturally introduces the small parameter ϵ = (2 N s) − 1 / 2 associated with the total spin Ns of the ferromagnet. By organizing the cavity and magnon fields in a systematic expansion in ε, we obtain compact analytic expressions for the spectra up to second order. Using these results, we reproduce the characteristic sideband structure observed in recent Floquet cavity electromagnonics experiments (Xu et al 2020 Phys. Rev. Lett. 125 237201). Furthermore, accounting for the Zeeman interaction between the modulation field and the fully polarized ground state—a contribution typically neglected in previous treatments-we predict an additional magnon detuning of approximately 0.8 GHz , independent of both modulation frequency and sample size and determined solely by the spatial volume occupied by the modulation field and the saturation magnetization of the material sample M s . This identifies a measurable and previously overlooked shift relevant for the interpretation and design of cavity magnonics experiments. [ABSTRACT FROM AUTHOR]
Copyright of New Journal of Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 192724575
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Perturbative input–output theory of floquet cavity magnonics and magnon energy shifts.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Aguiar%2C+T%22">Aguiar, T</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> taguiarcf@gmail.com</i><br /><searchLink fieldCode="AR" term="%22de+Oliveira%2C+M+C%22">de Oliveira, M C</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> marcos@ifi.unicamp.br</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22New+Journal+of+Physics%22">New Journal of Physics</searchLink>. 2026, Vol. 28 Issue 4, p1-16. 16p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Magnons%22">Magnons</searchLink><br /><searchLink fieldCode="DE" term="%22Zeeman+effect%22">Zeeman effect</searchLink><br /><searchLink fieldCode="DE" term="%22Spin+waves%22">Spin waves</searchLink><br /><searchLink fieldCode="DE" term="%22Transmittance+%28Physics%29%22">Transmittance (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Reflectance+spectroscopy%22">Reflectance spectroscopy</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We develop a perturbative input–output formalism to compute the reflectance and transmittance spectra of cavity magnonics systems subject to a Floquet modulation. The method exploits the strong hierarchy between the magnetic-dipole couplings transverse (drive field) and parallel (modulation field) to the static bias field, which naturally introduces the small parameter ϵ = (2 N s) − 1 / 2 associated with the total spin Ns of the ferromagnet. By organizing the cavity and magnon fields in a systematic expansion in ε, we obtain compact analytic expressions for the spectra up to second order. Using these results, we reproduce the characteristic sideband structure observed in recent Floquet cavity electromagnonics experiments (Xu et al 2020 Phys. Rev. Lett. 125 237201). Furthermore, accounting for the Zeeman interaction between the modulation field and the fully polarized ground state—a contribution typically neglected in previous treatments-we predict an additional magnon detuning of approximately 0.8 GHz , independent of both modulation frequency and sample size and determined solely by the spatial volume occupied by the modulation field and the saturation magnetization of the material sample M s . This identifies a measurable and previously overlooked shift relevant for the interpretation and design of cavity magnonics experiments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of New Journal of Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192724575
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1088/1367-2630/ae537d
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1
    Subjects:
      – SubjectFull: Magnons
        Type: general
      – SubjectFull: Zeeman effect
        Type: general
      – SubjectFull: Spin waves
        Type: general
      – SubjectFull: Transmittance (Physics)
        Type: general
      – SubjectFull: Reflectance spectroscopy
        Type: general
    Titles:
      – TitleFull: Perturbative input–output theory of floquet cavity magnonics and magnon energy shifts.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Aguiar, T
      – PersonEntity:
          Name:
            NameFull: de Oliveira, M C
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 04
              Text: 2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 13672630
          Numbering:
            – Type: volume
              Value: 28
            – Type: issue
              Value: 4
          Titles:
            – TitleFull: New Journal of Physics
              Type: main
ResultId 1