Merging of spin-wave modes in obliquely magnetized circular nanodots

Julia Kharlan; Vladyslav Borynskyi; Sergey A. Bunyaev; Pavlo Bondarenko; Olga Salyuk; Vladimir Golub; Alexander A. Serga; Oleksandr V. Dobrovolskiy; Andrii Chumak; Roman Verba; Gleb N. Kakazei

doi:10.1103/PhysRevB.105.014407

Merging of spin-wave modes in obliquely magnetized circular nanodots

Julia Kharlan (Korresp. Autor*in), Vladyslav Borynskyi, Sergey A. Bunyaev, Pavlo Bondarenko, Olga Salyuk, Vladimir Golub, Alexander A. Serga, Oleksandr V. Dobrovolskiy, Andrii Chumak, Roman Verba (Korresp. Autor*in), Gleb N. Kakazei

Nanomagnetismus und Magnonik

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

Abstract

Magnetic nanoelements attract great interest due to their prospects for data storage and signal processing. Spin-wave confinement in these elements implies wave-number quantization, discrete frequency spectra and thus complex resonance patterns, strongly dependent on the elements' geometry and static magnetic configuration. Here we report experimental observation of unconventional single-frequency resonance response of flat circular Permalloy nanodots, which is achieved via the application of a magnetic field at a certain critical angle
̃
𝜃
𝐵 with respect to the dot normal. This observation is explained as the merging of spin-wave eigenmodes under the transition of the spin-wave dispersion from the forward-volume to the backward-volume type, as elucidated by micromagnetic simulations in conjunction with an analytical theory. Our results offer a way for the creation of spin-wave systems with spectrally narrow magnetic noise.

Originalsprache	Englisch
Aufsatznummer	014407
Seitenumfang	8
Fachzeitschrift	Physical Review B
Jahrgang	105
Ausgabenummer	1
DOIs	https://doi.org/10.1103/PhysRevB.105.014407
Publikationsstatus	Veröffentlicht - 5 Jan. 2022

ÖFOS 2012

103015 Kondensierte Materie
103017 Magnetismus

Zugriff auf Dokument

10.1103/PhysRevB.105.014407

Andere Dateien und Links

Verknüpfung zur Publikation in Scopus

CurviMag: Krümmungsinduzierte Effekte in magnetischen Nanostrukturen
Dobrovolskiy, O. & Chumak, A.
1/01/21 → 31/12/23
Projekt: Forschungsförderung
MagFunc: Nichtreziprokal 3D-Architekturen für magnonische Funktionen
Chumak, A., Dobrovolskiy, O., Wang, Q., Süss, D., Abert, C., Voronov, A. & Zenbaa, N.
1/10/20 → 30/09/24
Projekt: Forschungsförderung

Zitationsweisen

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title = "Merging of spin-wave modes in obliquely magnetized circular nanodots",

abstract = "Magnetic nanoelements attract great interest due to their prospects for data storage and signal processing. Spin-wave confinement in these elements implies wave-number quantization, discrete frequency spectra and thus complex resonance patterns, strongly dependent on the elements' geometry and static magnetic configuration. Here we report experimental observation of unconventional single-frequency resonance response of flat circular Permalloy nanodots, which is achieved via the application of a magnetic field at a certain critical angl{\~e}휃퐵 with respect to the dot normal. This observation is explained as the merging of spin-wave eigenmodes under the transition of the spin-wave dispersion from the forward-volume to the backward-volume type, as elucidated by micromagnetic simulations in conjunction with an analytical theory. Our results offer a way for the creation of spin-wave systems with spectrally narrow magnetic noise.",

author = "Julia Kharlan and Vladyslav Borynskyi and Bunyaev, {Sergey A.} and Pavlo Bondarenko and Olga Salyuk and Vladimir Golub and Serga, {Alexander A.} and Dobrovolskiy, {Oleksandr V.} and Andrii Chumak and Roman Verba and Kakazei, {Gleb N.}",

note = "Funding Information: This work was supported by National Academy of Sciences of Ukraine, Grant No. 23-04/13-2021. The Portuguese team acknowledges the Network of Extreme Conditions Laboratories-NECL and Portuguese Foundation of Science and Technology (FCT) support through Projects No. NORTE-01-0145-FEDER-022096, No. POCI-0145-FEDER-030085 (NOVAMAG), and No. EXPL/IF/00541/2015. The support from the European Cooperation in Science and Technology via COST Action No. CA16218 (NANOCOHYBRI), from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via TRR 173/2 - 268565370 Spin X: spin in its collective environment (Project B04), and from the Austrian Science Fund (FWF) through Grants No. I 4917-N (MagFunc) and No. I 4889 (CurviMag) is acknowledged. V.G. acknowledges support by National Research Foundation of Ukraine (Grant No. 2020.02/0261) Publisher Copyright: {\textcopyright}2022 American Physical Society Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

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AU - Kharlan, Julia

AU - Borynskyi, Vladyslav

AU - Bunyaev, Sergey A.

AU - Bondarenko, Pavlo

AU - Salyuk, Olga

AU - Golub, Vladimir

AU - Serga, Alexander A.

AU - Dobrovolskiy, Oleksandr V.

AU - Chumak, Andrii

AU - Verba, Roman

AU - Kakazei, Gleb N.

N1 - Funding Information: This work was supported by National Academy of Sciences of Ukraine, Grant No. 23-04/13-2021. The Portuguese team acknowledges the Network of Extreme Conditions Laboratories-NECL and Portuguese Foundation of Science and Technology (FCT) support through Projects No. NORTE-01-0145-FEDER-022096, No. POCI-0145-FEDER-030085 (NOVAMAG), and No. EXPL/IF/00541/2015. The support from the European Cooperation in Science and Technology via COST Action No. CA16218 (NANOCOHYBRI), from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via TRR 173/2 - 268565370 Spin X: spin in its collective environment (Project B04), and from the Austrian Science Fund (FWF) through Grants No. I 4917-N (MagFunc) and No. I 4889 (CurviMag) is acknowledged. V.G. acknowledges support by National Research Foundation of Ukraine (Grant No. 2020.02/0261) Publisher Copyright: ©2022 American Physical Society Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2022/1/5

Y1 - 2022/1/5

N2 - Magnetic nanoelements attract great interest due to their prospects for data storage and signal processing. Spin-wave confinement in these elements implies wave-number quantization, discrete frequency spectra and thus complex resonance patterns, strongly dependent on the elements' geometry and static magnetic configuration. Here we report experimental observation of unconventional single-frequency resonance response of flat circular Permalloy nanodots, which is achieved via the application of a magnetic field at a certain critical anglẽ휃퐵 with respect to the dot normal. This observation is explained as the merging of spin-wave eigenmodes under the transition of the spin-wave dispersion from the forward-volume to the backward-volume type, as elucidated by micromagnetic simulations in conjunction with an analytical theory. Our results offer a way for the creation of spin-wave systems with spectrally narrow magnetic noise.

AB - Magnetic nanoelements attract great interest due to their prospects for data storage and signal processing. Spin-wave confinement in these elements implies wave-number quantization, discrete frequency spectra and thus complex resonance patterns, strongly dependent on the elements' geometry and static magnetic configuration. Here we report experimental observation of unconventional single-frequency resonance response of flat circular Permalloy nanodots, which is achieved via the application of a magnetic field at a certain critical anglẽ휃퐵 with respect to the dot normal. This observation is explained as the merging of spin-wave eigenmodes under the transition of the spin-wave dispersion from the forward-volume to the backward-volume type, as elucidated by micromagnetic simulations in conjunction with an analytical theory. Our results offer a way for the creation of spin-wave systems with spectrally narrow magnetic noise.

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Merging of spin-wave modes in obliquely magnetized circular nanodots

Abstract

ÖFOS 2012

Zugriff auf Dokument

Andere Dateien und Links

Projekte

CurviMag: Krümmungsinduzierte Effekte in magnetischen Nanostrukturen

MagFunc: Nichtreziprokal 3D-Architekturen für magnonische Funktionen

Zitationsweisen