mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal University10.26907/mrsej-19302mrisel-52Research ArticleСтатьиFMR line shape effect on spin pumping in bilayer structuresAtsarkinV. A.

Mokhovaya 11, Moscow 125009

atsarkin@cplire.ruDemidovV. V.

Mokhovaya 11, Moscow 125009

ShaikhulovT. A.

Mokhovaya 11, Moscow 125009

OvsyannikovG. A.

Mokhovaya 11, Moscow 125009

V.A. Kotel'nikov Institute of Radio Engineering and Electronics of RASRussian Federation201919042019213SPECIAL ISSUE dedicated to Boris I. Kochelaev's 85th birthday19302 (6 pp.)Copyright © Atsarkin V.A., Demidov V.V., Shaikhulov T.A., Ovsyannikov G.A., 20242024Atsarkin V.A., Demidov V.V., Shaikhulov T.A., Ovsyannikov G.A.Atsarkin V.A., Demidov V.V., Shaikhulov T.A., Ovsyannikov G.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.mrsej.ru/jour/article/view/52

Pure spin current induced by ferromagnetic resonance (FMR) excitation in thin-film heterostructures consisting of ferromagnetic (FM) and normal metal (NM) layers is studied as a function of FMR line shape and width. Experiments were carried out with thin films of ferromagnetic La2/3Sr1/3MnO3 (LSMO) grown epitaxially on NdGaO3 substrate and covered with Pt. The spin current injected into the NM layer was measured using the inverse spin Hall effect (ISHE) in the temperature range of 100-350 K. The samples under study revealed different width of the FMR line, which was attributed to inhomogeneous broadening with a specific Voigt shape of the ISHE signal. To take this effect into account, substantial corrections are proposed to the existing theory of spin pumping.

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The authors declare that there are no conflicts of interest present.