Spin-wave propagation at low temperatures in YIG thin films on YSGG substrates

José Elias Abrão; Daan Weltens; Rhodri Mansell; Sebastiaan Van Dijken; Lukáš Flajšman

doi:10.1063/5.0305321

Spin-wave propagation at low temperatures in YIG thin films on YSGG substrates

José Elias Abrão, Daan Weltens, Rhodri Mansell^*, Sebastiaan Van Dijken^*, Lukáš Flajšman^*

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

Abstrakti

The use of spin waves in magnetic thin films at cryogenic temperatures has long been hindered by the lack of a suitable material platform. Yttrium iron garnet (YIG) is the leading candidate, yet it is typically grown on gadolinium gallium garnet (GGG) substrates, which develop a large paramagnetic moment at low temperatures. This substrate effect limits spin-wave propagation. In this work, we demonstrate that thin YIG films grown on yttrium scandium gallium garnet (YSGG) substrates support robust spin-wave propagation in the Damon–Eshbach geometry, measurable down to 2K under applied magnetic fields up to 150mT. Compared with YIG/GGG, YIG/YSGG films exhibit narrower ferromagnetic resonance linewidths at low temperatures and are free from the atomic interdiffusion effects that degrade the performance of YIG/GGG systems. These results establish YIG/YSGG thin films as a promising low-temperature platform, overcoming the intrinsic limitations of YIG/GGG and opening new opportunities for scalable magnonic and hybrid quantum devices operating under cryogenic conditions.

Alkuperäiskieli	Englanti
Artikkeli	222402
Sivut	1-5
Sivumäärä	5
Julkaisu	Applied Physics Letters
Vuosikerta	127
Numero	22
DOI - pysyväislinkit	https://doi.org/10.1063/5.0305321
Tila	Julkaistu - 1 jouluk. 2025
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

This work was supported by the Research Council of Finland (Grant No. 357211) and by the Finnish Quantum Flagship project (Grant No. 358877). Lithography was carried out in the OtaNano–Micronova cleanroom, supported by Aalto University. XRD was performed at the OtaNano–Nanomicroscopy Center (Aalto-NMC).

Pääsy asiakirjaan

10.1063/5.0305321

http://Spin-wave propagation at low temperatures in YIG thin films on YSGG substrates

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Spin-wave_propagation_at_low_temperatures_in_YIG_thin_films_on_YSGG_substrates
Final published version, 2,23 MB
Kielto päättyy: 01/12/2026

FQF: Finnish Quantum Flagship
Naukkarinen, O. (Vastuullinen johtaja) & Lampinen, J. (Vastuullinen johtaja)
01/01/2024 → …
Projekti: RCF Flagship
HENC: Hybrid Magnonics for Energy Efficient and Neuromorphic Computing
van Dijken, S. (Vastuullinen johtaja), Vuorio, M. (Projektin jäsen), Le Guen, Y. (Projektin jäsen), Flajsman, L. (Projektin jäsen), Weltens, D. (Projektin jäsen), Linjala, J. (Projektin jäsen), Piha, A. (Projektin jäsen), Homanen, O. (Projektin jäsen) & Kuznetsov, N. (Projektin jäsen)
01/09/2023 → 31/08/2027
Projekti: RCF Academy Project

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OtaNano Nanofab
Repo, P. (Manager) & Rissanen, A. (Other)
OtaNano
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title = "Spin-wave propagation at low temperatures in YIG thin films on YSGG substrates",

abstract = "The use of spin waves in magnetic thin films at cryogenic temperatures has long been hindered by the lack of a suitable material platform. Yttrium iron garnet (YIG) is the leading candidate, yet it is typically grown on gadolinium gallium garnet (GGG) substrates, which develop a large paramagnetic moment at low temperatures. This substrate effect limits spin-wave propagation. In this work, we demonstrate that thin YIG films grown on yttrium scandium gallium garnet (YSGG) substrates support robust spin-wave propagation in the Damon–Eshbach geometry, measurable down to 2K under applied magnetic fields up to 150mT. Compared with YIG/GGG, YIG/YSGG films exhibit narrower ferromagnetic resonance linewidths at low temperatures and are free from the atomic interdiffusion effects that degrade the performance of YIG/GGG systems. These results establish YIG/YSGG thin films as a promising low-temperature platform, overcoming the intrinsic limitations of YIG/GGG and opening new opportunities for scalable magnonic and hybrid quantum devices operating under cryogenic conditions.",

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doi = "10.1063/5.0305321",

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T1 - Spin-wave propagation at low temperatures in YIG thin films on YSGG substrates

AU - Abrão, José Elias

AU - Weltens, Daan

AU - Mansell, Rhodri

AU - Van Dijken, Sebastiaan

AU - Flajšman, Lukáš

PY - 2025/12/1

Y1 - 2025/12/1

N2 - The use of spin waves in magnetic thin films at cryogenic temperatures has long been hindered by the lack of a suitable material platform. Yttrium iron garnet (YIG) is the leading candidate, yet it is typically grown on gadolinium gallium garnet (GGG) substrates, which develop a large paramagnetic moment at low temperatures. This substrate effect limits spin-wave propagation. In this work, we demonstrate that thin YIG films grown on yttrium scandium gallium garnet (YSGG) substrates support robust spin-wave propagation in the Damon–Eshbach geometry, measurable down to 2K under applied magnetic fields up to 150mT. Compared with YIG/GGG, YIG/YSGG films exhibit narrower ferromagnetic resonance linewidths at low temperatures and are free from the atomic interdiffusion effects that degrade the performance of YIG/GGG systems. These results establish YIG/YSGG thin films as a promising low-temperature platform, overcoming the intrinsic limitations of YIG/GGG and opening new opportunities for scalable magnonic and hybrid quantum devices operating under cryogenic conditions.

AB - The use of spin waves in magnetic thin films at cryogenic temperatures has long been hindered by the lack of a suitable material platform. Yttrium iron garnet (YIG) is the leading candidate, yet it is typically grown on gadolinium gallium garnet (GGG) substrates, which develop a large paramagnetic moment at low temperatures. This substrate effect limits spin-wave propagation. In this work, we demonstrate that thin YIG films grown on yttrium scandium gallium garnet (YSGG) substrates support robust spin-wave propagation in the Damon–Eshbach geometry, measurable down to 2K under applied magnetic fields up to 150mT. Compared with YIG/GGG, YIG/YSGG films exhibit narrower ferromagnetic resonance linewidths at low temperatures and are free from the atomic interdiffusion effects that degrade the performance of YIG/GGG systems. These results establish YIG/YSGG thin films as a promising low-temperature platform, overcoming the intrinsic limitations of YIG/GGG and opening new opportunities for scalable magnonic and hybrid quantum devices operating under cryogenic conditions.

UR - https://www.scopus.com/pages/publications/105023401057

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DO - 10.1063/5.0305321

M3 - Article

AN - SCOPUS:105023401057

SN - 0003-6951

VL - 127

SP - 1

EP - 5

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 22

M1 - 222402

ER -

Spin-wave propagation at low temperatures in YIG thin films on YSGG substrates

Abstrakti

Rahoitus

Pääsy asiakirjaan

Muut tiedostot ja linkit

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Sormenjälki

Projektit

FQF: Finnish Quantum Flagship

HENC: Hybrid Magnonics for Energy Efficient and Neuromorphic Computing

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OtaNano

OtaNano Nanofab

OtaNano Nanomikroskopiakeskus

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