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

doi:10.1103/PhysRevB.94.224423

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 journal › Article › peer-review

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 language	English (US)
Article number	224423
Journal	Physical Review B
Volume	94
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.94.224423
State	Published - Dec 20 2016

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.94.224423

Cite this

@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",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = dec,

day = "20",

doi = "10.1103/PhysRevB.94.224423",

language = "English (US)",

volume = "94",

journal = "Physical Review B",

issn = "2469-9950",

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

AN - SCOPUS:85007493641

SN - 2469-9950

VL - 94

JO - Physical Review B

JF - Physical Review B

IS - 22

M1 - 224423

ER -

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

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this