Ferromagnet/Superconductor Hybrid Magnonic Metamaterials

Igor A. Golovchanskiy*, Nikolay N. Abramov, Vasily S. Stolyarov, Pavel S. Dzhumaev, Olga V. Emelyanova, Alexander A. Golubov, Valery V. Ryazanov, Alexey V. Ustinov

*Corresponding author for this work

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Abstract

In this work, a class of metamaterials is proposed on the basis of ferromagnet/superconductor hybridization for applications in magnonics. These metamaterials comprise of a ferromagnetic magnon medium that is coupled inductively to a superconducting periodic microstructure. Spectroscopy of magnetization dynamics in such hybrid evidences formation of areas in the medium with alternating dispersions for spin wave propagation, which is the basic requirement for the development of metamaterials known as magnonic crystals. The spectrum allows for derivation of the impact of the superconducting structure on the dispersion: it takes place due to a diamagnetic response of superconductors on the external and stray magnetic fields. In addition, the spectrum displays a dependence on the superconducting critical state of the structure: the Meissner and the mixed states of a type II superconductor are distinguished. This dependence hints toward nonlinear response of hybrid metamaterials on the magnetic field. Investigation of the spin wave dispersion in hybrid metamaterials shows formation of allowed and forbidden bands for spin wave propagation. The band structures are governed by the geometry of spin wave propagation: in the backward volume geometry the band structure is conventional, while in the surface geometry the band structure is nonreciprocal and is formed by indirect band gaps.

Original languageEnglish
Article number1900435
JournalAdvanced science
Volume6
Issue number16
DOIs
Publication statusPublished - 21 Aug 2019

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Magnets
Metamaterials
Spin waves
Superconducting materials
magnons
Magnetic Fields
Band structure
Wave propagation
wave propagation
Geometry
Spectrum Analysis
Magnetic fields
forbidden bands
surface geometry
wave dispersion
geometry
Dispersions
magnetic fields
Magnetization
Energy gap

Keywords

  • ferromagnetic resonance
  • magnonic crystals
  • spin waves
  • superconductivity

Cite this

Golovchanskiy, I. A., Abramov, N. N., Stolyarov, V. S., Dzhumaev, P. S., Emelyanova, O. V., Golubov, A. A., ... Ustinov, A. V. (2019). Ferromagnet/Superconductor Hybrid Magnonic Metamaterials. Advanced science, 6(16), [1900435]. https://doi.org/10.1002/advs.201900435
Golovchanskiy, Igor A. ; Abramov, Nikolay N. ; Stolyarov, Vasily S. ; Dzhumaev, Pavel S. ; Emelyanova, Olga V. ; Golubov, Alexander A. ; Ryazanov, Valery V. ; Ustinov, Alexey V. / Ferromagnet/Superconductor Hybrid Magnonic Metamaterials. In: Advanced science. 2019 ; Vol. 6, No. 16.
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Golovchanskiy, IA, Abramov, NN, Stolyarov, VS, Dzhumaev, PS, Emelyanova, OV, Golubov, AA, Ryazanov, VV & Ustinov, AV 2019, 'Ferromagnet/Superconductor Hybrid Magnonic Metamaterials', Advanced science, vol. 6, no. 16, 1900435. https://doi.org/10.1002/advs.201900435

Ferromagnet/Superconductor Hybrid Magnonic Metamaterials. / Golovchanskiy, Igor A.; Abramov, Nikolay N.; Stolyarov, Vasily S.; Dzhumaev, Pavel S.; Emelyanova, Olga V.; Golubov, Alexander A.; Ryazanov, Valery V.; Ustinov, Alexey V.

In: Advanced science, Vol. 6, No. 16, 1900435, 21.08.2019.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Emelyanova, Olga V.

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AU - Ryazanov, Valery V.

AU - Ustinov, Alexey V.

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N2 - In this work, a class of metamaterials is proposed on the basis of ferromagnet/superconductor hybridization for applications in magnonics. These metamaterials comprise of a ferromagnetic magnon medium that is coupled inductively to a superconducting periodic microstructure. Spectroscopy of magnetization dynamics in such hybrid evidences formation of areas in the medium with alternating dispersions for spin wave propagation, which is the basic requirement for the development of metamaterials known as magnonic crystals. The spectrum allows for derivation of the impact of the superconducting structure on the dispersion: it takes place due to a diamagnetic response of superconductors on the external and stray magnetic fields. In addition, the spectrum displays a dependence on the superconducting critical state of the structure: the Meissner and the mixed states of a type II superconductor are distinguished. This dependence hints toward nonlinear response of hybrid metamaterials on the magnetic field. Investigation of the spin wave dispersion in hybrid metamaterials shows formation of allowed and forbidden bands for spin wave propagation. The band structures are governed by the geometry of spin wave propagation: in the backward volume geometry the band structure is conventional, while in the surface geometry the band structure is nonreciprocal and is formed by indirect band gaps.

AB - In this work, a class of metamaterials is proposed on the basis of ferromagnet/superconductor hybridization for applications in magnonics. These metamaterials comprise of a ferromagnetic magnon medium that is coupled inductively to a superconducting periodic microstructure. Spectroscopy of magnetization dynamics in such hybrid evidences formation of areas in the medium with alternating dispersions for spin wave propagation, which is the basic requirement for the development of metamaterials known as magnonic crystals. The spectrum allows for derivation of the impact of the superconducting structure on the dispersion: it takes place due to a diamagnetic response of superconductors on the external and stray magnetic fields. In addition, the spectrum displays a dependence on the superconducting critical state of the structure: the Meissner and the mixed states of a type II superconductor are distinguished. This dependence hints toward nonlinear response of hybrid metamaterials on the magnetic field. Investigation of the spin wave dispersion in hybrid metamaterials shows formation of allowed and forbidden bands for spin wave propagation. The band structures are governed by the geometry of spin wave propagation: in the backward volume geometry the band structure is conventional, while in the surface geometry the band structure is nonreciprocal and is formed by indirect band gaps.

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Golovchanskiy IA, Abramov NN, Stolyarov VS, Dzhumaev PS, Emelyanova OV, Golubov AA et al. Ferromagnet/Superconductor Hybrid Magnonic Metamaterials. Advanced science. 2019 Aug 21;6(16). 1900435. https://doi.org/10.1002/advs.201900435