Proceedings of TUSUR University / Archive / Issue of Journal № 2, t. 28, 2025 / Detection of Acoustic Oscillations Excited by Strong Magnetoelastic Coupling in an Antiferromagnetic α-Fe2O3/Pt Heterostructure

Detection of Acoustic Oscillations Excited by Strong Magnetoelastic Coupling in an Antiferromagnetic α-Fe2O3/Pt Heterostructure

DOI: 10.21293/1818-0442-2025-28-2-7-13

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Abstract: Acoustic spin pumping from the antiferromagnet α-Fe2O3 into a normal metal (Pt) was experimentally investigated. It was demonstrated that the excitation of acoustic resonance in hema-tite leads to spin accumulation at the interface with Pt and the generation of charge currents, which are detected via the inverse spin Hall effect (ISHE). An equivalent radiotechnical circuit has been proposed and implemented, enabling a qualitative descrip-tion of the interaction between the elastic and magnetic subsys-tems, as well as the parameters of the resonator.

Keywords: spin pumping, acoustic resonance, antiferromagnet, hematite, α-Fe2O3, inverse spin Hall effect, magnetoelastic coupling, equivalent circuit, spintronics, magnetoacoustics

Funding: This work was supported by a Russian Federation government assignment to the V.A. Kotelnikov Institute of Radioelectronics and Electronics of the Russian Academy of Sciences.

For citation:
Gabrielyan D. A., Samoylenko K. D., Volkov D. A., Mihaylov M. S., Komarov A. A., Safin A. R. Detection of Acoustic Oscillations Excited by Strong Magnetoelastic Coupling in an Antiferromagnetic α-Fe2O3/Pt Heterostructure. Doklady Tomskogo gosudarstvennogo universiteta sistem upravleniya i radioelektroniki, 2025, vol. 28, no. 2, pp. 7–13. DOI: 10.21293/1818-0442-2025-28-2-7-13

Authors and copyright holders:

Gabrielyan D. A. , National Research University «MPEI» (Moscow, Russia),, Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences (Moscow, Russia)
Samoylenko K. D. , Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences (Moscow, Russia), Moscow Institute of Physics and Technology (Dolgoprudny, Russia)
Volkov D. A. , Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences (Moscow, Russia)
Mihaylov M. S. , National Research University «MPEI» (Moscow, Russia)
Komarov A. A. , National Research University «MPEI» (Moscow, Russia)
Safin A. R. , Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences (Moscow, Russia),, National Research University «MPEI» (Moscow, Russia)

1. Nikitov S.A., Safin A.R., Kalyabin D.V., Sadovnikov A.V., Beginin E.N., Logunov M.V., Morozova M.A., Odintsov S.A., Osokin S.A., Sharaevskaya A.Y., Sharaevsky Y.P., Kirilyuk A.I. Dielectric magnonics: From gigahertz to terahertz. Phys.-Usp., 2020, vol. 63, pp. 945–974.
2. Baltz V., Manchon A., Tsoi M., Moriyama T., Ono T., Tserkovnyak Y. Antiferromagnetic spintronics. Rev. Mod. Phys., 2018, vol. 90, р. 015005.
3. Turov E.A., Kolchanov A.V., Men’shenin V.V., Mirsaev I.F. Symmetry and physical properties of antiferromagnetics. Cambridge, Cambridge Int. Science Publishing, 2004.
4. Strugatsky M., Skibinsky K. Acoustic resonances in antiferromagnet FeBO3. J. Magn. Magn. Mater., 2007, vol. 309, no. 1, pp. 64–70.
5. Wang H., Xiao Y., Guo M., Lee-Wong E., Yan G.Q., Cheng R., Du C.R. Spin pumping of an easy-plane antiferromagnet enhanced by Dzyaloshinskii-Moriya interaction. Phys. Rev. Lett., 2021, vol. 127, р. 117202.
6. Boventer I., Simensen H.T., Anane A., Kläui M., Brataas A., Lebrun R. Room-temperature antiferromagnetic resonance and inverse spin-Hall voltage in canted antiferromagnets. Phys. Rev. Lett., 2021, vol. 126, р. 187201.
7. Lebrun R., Ross A., Gomonay O., Baltz V., Ebels U., Barra A.-L., Qaiumzadeh A., Brataas A., Sinova J., Kläui M. Long-distance spin transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet α-Fe2O3. Nat. Commun., 2020, vol. 11, р. 6332.
8. Hamdi M., Posva F., Grundler D. Spin wave dispersion of ultra-low damping hematite (α-Fe2O3) at GHz frequencies. Phys. Rev. Mater., 2023, vol. 7, р. 054407.
9. Gabrielyan D., Volkov D., Kozlova E., Safin A., Kalyabin D., Nikitov S. Room-temperature spin pumping from canted antiferromagnet α-Fe2O3. J. Appl. Phys., 2024, vol. 136, no. 8.
10. Gabrielyan D.A., Volkov D.A., Kozlova E.E., Safin A.R., Kalyabin D.V., Klimov A.A., Preobrazhensky V.L., Strugatsky M.B., Yagupov S.V., Moskal I.E., Ovsyannikov G.A., Nikitov S.A. Microwave spin-pumping from an antiferromagnet FeBO3. J. Phys. D: Appl. Phys., 2024, vol. 57, no. 30, р. 305003.
11. Cheng R., Xiao J., Niu Q., Brataas A. Spin pumping and spin-transfer torques in antiferromagnets. Phys. Rev. Lett., 2014, vol. 113, р. 057601.
12. Cheng R., Xiao D., Brataas A. Terahertz antiferromagnetic spin Hall nano-oscillator. Phys. Rev. Lett., 2016, vol. 116, р. 207603.
13. Khymyn R., Tiberkevich V., Slavin A. Antiferromagnetic spin current rectifier. AIP Adv., 2017, vol. 7, р. 055931.
14. Fetisov Y.K., Preobrazhenskii V., Pernod P. Bistability in a nonlinear magnetoacoustic resonator. J. Commun. Technol. Electron., 2006, vol. 51, pp. 218–230.
15. Ozhogin V.I., Preobrazhensky V.L. Anharmonicity of mixed modes and giant acoustic nonlinearity of antiferromagnetics. Sov. Phys. Usp., 1988, vol. 31, pp. 713–729.
16. Safant’evskiy A.P. Kvazistatsionarnaya elektronnaya tsep’ v kachestve ekvivalentnoy skhemy ferritovoy sfery [Quasistationary electronic circuit as an equivalent scheme of a ferrite sphere]. Elektronnaya tekhnika. Ser. Ferritovaya tekhnika, 1969, no. 5, pp. 44–51 (in Russ.)