Spin transport and dynamics in all-oxide perovskite La2/3Sr1/3MnO3/SrRuO3 bilayers probed by ferromagnetic resonance

Satoru Emori, Urusa S. Alaan, Matthew T. Gray, Volker Sluka, Yizhang Chen, Andrew D. Kent, Y. Suzuki

    Research output: Contribution to journalArticle

    Abstract

    Thin films of perovskite oxides offer the possibility of combining emerging concepts of strongly correlated electron phenomena and spin current in magnetic devices. However, spin transport and magnetization dynamics in these complex oxide materials are not well understood. Here, we experimentally quantify spin transport parameters and magnetization damping in epitaxial perovskite ferromagnet/paramagnet bilayers of La2/3Sr1/3MnO3/SrRuO3 (LSMO/SRO) by broadband ferromagnetic resonance spectroscopy. From the SRO thickness dependence of the Gilbert damping, we estimate a short spin diffusion length of 1 nm in SRO and an interfacial spin-mixing conductance comparable to other ferromagnet/paramagnetic-metal bilayers. Moreover, we find that anisotropic non-Gilbert damping due to two-magnon scattering also increases with the addition of SRO. Our results demonstrate LSMO/SRO as a spin-source/spin-sink system that may be a foundation for examining spin-current transport in various perovskite heterostructures.

    Original languageEnglish (US)
    Article number224423
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume94
    Issue number22
    DOIs
    StatePublished - Dec 20 2016

    Fingerprint

    Ferromagnetic resonance
    ferromagnetic resonance
    Perovskite
    Oxides
    Damping
    oxides
    Magnetization
    Magnetic devices
    Heterojunctions
    damping
    Metals
    Spectroscopy
    Scattering
    Thin films
    Electrons
    magnetization
    perovskite
    diffusion length
    sinks
    emerging

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Cite this

    Spin transport and dynamics in all-oxide perovskite La2/3Sr1/3MnO3/SrRuO3 bilayers probed by ferromagnetic resonance. / Emori, Satoru; Alaan, Urusa S.; Gray, Matthew T.; Sluka, Volker; Chen, Yizhang; Kent, Andrew D.; Suzuki, Y.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 94, No. 22, 224423, 20.12.2016.

    Research output: Contribution to journalArticle

    Emori, Satoru ; Alaan, Urusa S. ; Gray, Matthew T. ; Sluka, Volker ; Chen, Yizhang ; Kent, Andrew D. ; Suzuki, Y. / Spin transport and dynamics in all-oxide perovskite La2/3Sr1/3MnO3/SrRuO3 bilayers probed by ferromagnetic resonance. In: Physical Review B - Condensed Matter and Materials Physics. 2016 ; Vol. 94, No. 22.
    @article{176b51fe62714d01b25f34896e24e58e,
    title = "Spin transport and dynamics in all-oxide perovskite La2/3Sr1/3MnO3/SrRuO3 bilayers probed by ferromagnetic resonance",
    abstract = "Thin films of perovskite oxides offer the possibility of combining emerging concepts of strongly correlated electron phenomena and spin current in magnetic devices. However, spin transport and magnetization dynamics in these complex oxide materials are not well understood. Here, we experimentally quantify spin transport parameters and magnetization damping in epitaxial perovskite ferromagnet/paramagnet bilayers of La2/3Sr1/3MnO3/SrRuO3 (LSMO/SRO) by broadband ferromagnetic resonance spectroscopy. From the SRO thickness dependence of the Gilbert damping, we estimate a short spin diffusion length of 1 nm in SRO and an interfacial spin-mixing conductance comparable to other ferromagnet/paramagnetic-metal bilayers. Moreover, we find that anisotropic non-Gilbert damping due to two-magnon scattering also increases with the addition of SRO. Our results demonstrate LSMO/SRO as a spin-source/spin-sink system that may be a foundation for examining spin-current transport in various perovskite heterostructures.",
    author = "Satoru Emori and Alaan, {Urusa S.} and Gray, {Matthew T.} and Volker Sluka and Yizhang Chen and Kent, {Andrew D.} and Y. Suzuki",
    year = "2016",
    month = "12",
    day = "20",
    doi = "10.1103/PhysRevB.94.224423",
    language = "English (US)",
    volume = "94",
    journal = "Physical Review B-Condensed Matter",
    issn = "1098-0121",
    publisher = "American Physical Society",
    number = "22",

    }

    TY - JOUR

    T1 - Spin transport and dynamics in all-oxide perovskite La2/3Sr1/3MnO3/SrRuO3 bilayers probed by ferromagnetic resonance

    AU - Emori, Satoru

    AU - Alaan, Urusa S.

    AU - Gray, Matthew T.

    AU - Sluka, Volker

    AU - Chen, Yizhang

    AU - Kent, Andrew D.

    AU - Suzuki, Y.

    PY - 2016/12/20

    Y1 - 2016/12/20

    N2 - Thin films of perovskite oxides offer the possibility of combining emerging concepts of strongly correlated electron phenomena and spin current in magnetic devices. However, spin transport and magnetization dynamics in these complex oxide materials are not well understood. Here, we experimentally quantify spin transport parameters and magnetization damping in epitaxial perovskite ferromagnet/paramagnet bilayers of La2/3Sr1/3MnO3/SrRuO3 (LSMO/SRO) by broadband ferromagnetic resonance spectroscopy. From the SRO thickness dependence of the Gilbert damping, we estimate a short spin diffusion length of 1 nm in SRO and an interfacial spin-mixing conductance comparable to other ferromagnet/paramagnetic-metal bilayers. Moreover, we find that anisotropic non-Gilbert damping due to two-magnon scattering also increases with the addition of SRO. Our results demonstrate LSMO/SRO as a spin-source/spin-sink system that may be a foundation for examining spin-current transport in various perovskite heterostructures.

    AB - Thin films of perovskite oxides offer the possibility of combining emerging concepts of strongly correlated electron phenomena and spin current in magnetic devices. However, spin transport and magnetization dynamics in these complex oxide materials are not well understood. Here, we experimentally quantify spin transport parameters and magnetization damping in epitaxial perovskite ferromagnet/paramagnet bilayers of La2/3Sr1/3MnO3/SrRuO3 (LSMO/SRO) by broadband ferromagnetic resonance spectroscopy. From the SRO thickness dependence of the Gilbert damping, we estimate a short spin diffusion length of 1 nm in SRO and an interfacial spin-mixing conductance comparable to other ferromagnet/paramagnetic-metal bilayers. Moreover, we find that anisotropic non-Gilbert damping due to two-magnon scattering also increases with the addition of SRO. Our results demonstrate LSMO/SRO as a spin-source/spin-sink system that may be a foundation for examining spin-current transport in various perovskite heterostructures.

    UR - http://www.scopus.com/inward/record.url?scp=85007493641&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=85007493641&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevB.94.224423

    DO - 10.1103/PhysRevB.94.224423

    M3 - Article

    VL - 94

    JO - Physical Review B-Condensed Matter

    JF - Physical Review B-Condensed Matter

    SN - 1098-0121

    IS - 22

    M1 - 224423

    ER -