Experimental study of spin-wave dispersion in Py/Pt film structures in the presence of an interface Dzyaloshinskii-Moriya interaction

A.A. Stashkevich, M. Belmeguenai, Y. Roussigné, S.M. Cherif, Mikhail Kostylev, M. Gabor, D. Lacour, C. Tiusan, M. Hehn

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    Abstract

    © 2015 American Physical Society. Brillouin light scattering (BLS), complemented by ferromagnetic resonance (FMR) characterization, has been used for studying spin-wave (SW) propagation in Py(L)/Pt(6-nm) bilayers of various Py thicknesses (4nm≤L≤10nm). The FMR measurements allowed determination of the pertinent magnetic parameters and revealed the existence of a normal surface anisotropy. A pronounced asymmetry of Damon-Eshbach (DE) wave frequencies has been evidenced by BLS. Therefore, the difference between Stokes and anti-Stokes DE frequencies has been measured versus SW wave number for all the samples. A detailed discussion about the origin of this frequency difference is reported, which concludes that this is due to interface Dzyaloshinskii-Moriya interaction (IDMI).
    Original languageEnglish
    Pages (from-to)214409-1 - 214409-9
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume91
    Issue number21
    DOIs
    Publication statusPublished - 8 Jun 2015

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    Brillouin scattering
    Ferromagnetic resonance
    Spin waves
    wave dispersion
    Light scattering
    magnons
    ferromagnetic resonance
    light scattering
    Wave propagation
    Anisotropy
    interactions
    wave propagation
    asymmetry
    anisotropy

    Cite this

    Stashkevich, A.A. ; Belmeguenai, M. ; Roussigné, Y. ; Cherif, S.M. ; Kostylev, Mikhail ; Gabor, M. ; Lacour, D. ; Tiusan, C. ; Hehn, M. / Experimental study of spin-wave dispersion in Py/Pt film structures in the presence of an interface Dzyaloshinskii-Moriya interaction. In: Physical Review B - Condensed Matter and Materials Physics. 2015 ; Vol. 91, No. 21. pp. 214409-1 - 214409-9.
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    abstract = "{\circledC} 2015 American Physical Society. Brillouin light scattering (BLS), complemented by ferromagnetic resonance (FMR) characterization, has been used for studying spin-wave (SW) propagation in Py(L)/Pt(6-nm) bilayers of various Py thicknesses (4nm≤L≤10nm). The FMR measurements allowed determination of the pertinent magnetic parameters and revealed the existence of a normal surface anisotropy. A pronounced asymmetry of Damon-Eshbach (DE) wave frequencies has been evidenced by BLS. Therefore, the difference between Stokes and anti-Stokes DE frequencies has been measured versus SW wave number for all the samples. A detailed discussion about the origin of this frequency difference is reported, which concludes that this is due to interface Dzyaloshinskii-Moriya interaction (IDMI).",
    author = "A.A. Stashkevich and M. Belmeguenai and Y. Roussign{\'e} and S.M. Cherif and Mikhail Kostylev and M. Gabor and D. Lacour and C. Tiusan and M. Hehn",
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    Experimental study of spin-wave dispersion in Py/Pt film structures in the presence of an interface Dzyaloshinskii-Moriya interaction. / Stashkevich, A.A.; Belmeguenai, M.; Roussigné, Y.; Cherif, S.M.; Kostylev, Mikhail; Gabor, M.; Lacour, D.; Tiusan, C.; Hehn, M.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 91, No. 21, 08.06.2015, p. 214409-1 - 214409-9.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Experimental study of spin-wave dispersion in Py/Pt film structures in the presence of an interface Dzyaloshinskii-Moriya interaction

    AU - Stashkevich, A.A.

    AU - Belmeguenai, M.

    AU - Roussigné, Y.

    AU - Cherif, S.M.

    AU - Kostylev, Mikhail

    AU - Gabor, M.

    AU - Lacour, D.

    AU - Tiusan, C.

    AU - Hehn, M.

    PY - 2015/6/8

    Y1 - 2015/6/8

    N2 - © 2015 American Physical Society. Brillouin light scattering (BLS), complemented by ferromagnetic resonance (FMR) characterization, has been used for studying spin-wave (SW) propagation in Py(L)/Pt(6-nm) bilayers of various Py thicknesses (4nm≤L≤10nm). The FMR measurements allowed determination of the pertinent magnetic parameters and revealed the existence of a normal surface anisotropy. A pronounced asymmetry of Damon-Eshbach (DE) wave frequencies has been evidenced by BLS. Therefore, the difference between Stokes and anti-Stokes DE frequencies has been measured versus SW wave number for all the samples. A detailed discussion about the origin of this frequency difference is reported, which concludes that this is due to interface Dzyaloshinskii-Moriya interaction (IDMI).

    AB - © 2015 American Physical Society. Brillouin light scattering (BLS), complemented by ferromagnetic resonance (FMR) characterization, has been used for studying spin-wave (SW) propagation in Py(L)/Pt(6-nm) bilayers of various Py thicknesses (4nm≤L≤10nm). The FMR measurements allowed determination of the pertinent magnetic parameters and revealed the existence of a normal surface anisotropy. A pronounced asymmetry of Damon-Eshbach (DE) wave frequencies has been evidenced by BLS. Therefore, the difference between Stokes and anti-Stokes DE frequencies has been measured versus SW wave number for all the samples. A detailed discussion about the origin of this frequency difference is reported, which concludes that this is due to interface Dzyaloshinskii-Moriya interaction (IDMI).

    U2 - 10.1103/PhysRevB.91.214409

    DO - 10.1103/PhysRevB.91.214409

    M3 - Article

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    SP - 214409-1 - 214409-9

    JO - Physical Review B

    JF - Physical Review B

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