Propagating spin-wave spectroscopy in a liquid-phase epitaxial nanometer-thick YIG film at millikelvin temperatures

Sebastian Knauer; Kristýna Davídková; David Schmoll; Rostyslav O. Serha; Andrey Voronov; Qi Wang; Roman Verba; Oleksandr V. Dobrovolskiy; Morris Lindner; Timmy Reimann; Carsten Dubs; Michal Urbánek; Andrii V. Chumak

doi:10.1063/5.0137437

Propagating spin-wave spectroscopy in a liquid-phase epitaxial nanometer-thick YIG film at millikelvin temperatures

Sebastian Knauer (Corresponding author)
, Kristýna Davídková
, David Schmoll
, Rostyslav O. Serha
, Andrey Voronov
, Qi Wang
, Roman Verba
, Oleksandr V. Dobrovolskiy
, Morris Lindner
, Timmy Reimann
, Carsten Dubs
, Michal Urbánek
, Andrii V. Chumak

Nanomagnetism and Magnonics

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

Performing propagating spin-wave spectroscopy of thin films at millikelvin temperatures is the next step toward the realization of large-scale integrated magnonic circuits for quantum applications. Here, we demonstrate spin-wave propagation in a 100 nm-thick yttrium-iron-garnet (YIG) film at temperatures down to 45 mK, using stripline nanoantennas deposited on YIG surface for electrical excitation and detection. The clear transmission characteristics over the distance of 10 μ m are measured and the extracted spin-wave group velocity and the YIG saturation magnetization agree well with the theoretical values. We show that the gadolinium-gallium-garnet (GGG) substrate influences the spin-wave propagation characteristics only for the applied magnetic fields beyond 75 mT, originating from a GGG magnetization up to 62 kA / m at 45 mK. Our results show that the developed fabrication and measurement methodologies enable the realization of integrated magnonic quantum nanotechnologies at millikelvin temperatures.

Original language	English
Article number	143905
Number of pages	8
Journal	Journal of Applied Physics
Volume	133
Issue number	14
DOIs	https://doi.org/10.1063/5.0137437
Publication status	Published - 14 Apr 2023

Funding

The authors thank Vincent Vlaminck for useful discussions and feedback. S.K. acknowledges the support by the H2020-MSCA-IF under Grant No. 101025758 (OMNI). K.D. was supported by the Erasmus+ program of the European Union. The authors acknowledge CzechNanoLab Research Infrastructure supported by MEYS CR (LM2018110). A.V.C. acknowledges the support by the Austrian Science Fund (FWF) through Project No. I 4696-N. The work of C.D. was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Grant No. 271741898. The work of M.L. was supported by the German Bundesministerium für Wirtschaft und Energie (BMWi) under Grant No. 49MF180119. O.V.D. acknowledges support by the Austrian Science Fund (FWF) under Grant No. I 6079-N (FluMag). C.D. thanks O. Surzhenko and R. Meyer (INNOVENT) for their support.

Austrian Fields of Science 2012

103017 Magnetism

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10.1063/5.0137437Licence: CC BY 4.0

https://phaidra.univie.ac.at/o:1978965Licence: CC BY 4.0

Cite this

Knauer, S., Davídková, K., Schmoll, D., Serha, R. O., Voronov, A., Wang, Q., Verba, R., Dobrovolskiy, O. V., Lindner, M., Reimann, T., Dubs, C., Urbánek, M., & Chumak, A. V. (2023). Propagating spin-wave spectroscopy in a liquid-phase epitaxial nanometer-thick YIG film at millikelvin temperatures. Journal of Applied Physics, 133(14), Article 143905. https://doi.org/10.1063/5.0137437

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title = "Propagating spin-wave spectroscopy in a liquid-phase epitaxial nanometer-thick YIG film at millikelvin temperatures",

abstract = "Performing propagating spin-wave spectroscopy of thin films at millikelvin temperatures is the next step toward the realization of large-scale integrated magnonic circuits for quantum applications. Here, we demonstrate spin-wave propagation in a 100 nm-thick yttrium-iron-garnet (YIG) film at temperatures down to 45 mK, using stripline nanoantennas deposited on YIG surface for electrical excitation and detection. The clear transmission characteristics over the distance of 10 μ m are measured and the extracted spin-wave group velocity and the YIG saturation magnetization agree well with the theoretical values. We show that the gadolinium-gallium-garnet (GGG) substrate influences the spin-wave propagation characteristics only for the applied magnetic fields beyond 75 mT, originating from a GGG magnetization up to 62 kA / m at 45 mK. Our results show that the developed fabrication and measurement methodologies enable the realization of integrated magnonic quantum nanotechnologies at millikelvin temperatures. ",

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T1 - Propagating spin-wave spectroscopy in a liquid-phase epitaxial nanometer-thick YIG film at millikelvin temperatures

AU - Knauer, Sebastian

AU - Davídková, Kristýna

AU - Schmoll, David

AU - Serha, Rostyslav O.

AU - Voronov, Andrey

AU - Wang, Qi

AU - Verba, Roman

AU - Dobrovolskiy, Oleksandr V.

AU - Lindner, Morris

AU - Reimann, Timmy

AU - Dubs, Carsten

AU - Urbánek, Michal

AU - Chumak, Andrii V.

PY - 2023/4/14

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N2 - Performing propagating spin-wave spectroscopy of thin films at millikelvin temperatures is the next step toward the realization of large-scale integrated magnonic circuits for quantum applications. Here, we demonstrate spin-wave propagation in a 100 nm-thick yttrium-iron-garnet (YIG) film at temperatures down to 45 mK, using stripline nanoantennas deposited on YIG surface for electrical excitation and detection. The clear transmission characteristics over the distance of 10 μ m are measured and the extracted spin-wave group velocity and the YIG saturation magnetization agree well with the theoretical values. We show that the gadolinium-gallium-garnet (GGG) substrate influences the spin-wave propagation characteristics only for the applied magnetic fields beyond 75 mT, originating from a GGG magnetization up to 62 kA / m at 45 mK. Our results show that the developed fabrication and measurement methodologies enable the realization of integrated magnonic quantum nanotechnologies at millikelvin temperatures.

AB - Performing propagating spin-wave spectroscopy of thin films at millikelvin temperatures is the next step toward the realization of large-scale integrated magnonic circuits for quantum applications. Here, we demonstrate spin-wave propagation in a 100 nm-thick yttrium-iron-garnet (YIG) film at temperatures down to 45 mK, using stripline nanoantennas deposited on YIG surface for electrical excitation and detection. The clear transmission characteristics over the distance of 10 μ m are measured and the extracted spin-wave group velocity and the YIG saturation magnetization agree well with the theoretical values. We show that the gadolinium-gallium-garnet (GGG) substrate influences the spin-wave propagation characteristics only for the applied magnetic fields beyond 75 mT, originating from a GGG magnetization up to 62 kA / m at 45 mK. Our results show that the developed fabrication and measurement methodologies enable the realization of integrated magnonic quantum nanotechnologies at millikelvin temperatures.

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SN - 0021-8979

VL - 133

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JF - Journal of Applied Physics

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ER -

Propagating spin-wave spectroscopy in a liquid-phase epitaxial nanometer-thick YIG film at millikelvin temperatures

Abstract

Funding

Austrian Fields of Science 2012

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Propagating spin-wave spectroscopy in a liquid-phase epitaxial nanometer-thick YIG film at millikelvin temperatures

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Funding

Austrian Fields of Science 2012

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