Ferromagnetic Resonance Revised – Electrodynamic Approach

Abstract Resonance in a ferromagnetic sphere, known in the body of literature as the mode of uniform precession, has recently been proven to be magnetic plasmon resonance (MPR). This finding has prompted research which is presented in this paper on the relation between the Q-factor at the MPR and th...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jerzy Krupka, Pavlo Aleshkevych, Bartlomiej Salski, Pawel Kopyt, Adam Pacewicz
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c0f8c42f79b34b17b3ecc87e5fc7a0db
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:c0f8c42f79b34b17b3ecc87e5fc7a0db
record_format	dspace
spelling	oai:doaj.org-article:c0f8c42f79b34b17b3ecc87e5fc7a0db2021-12-02T15:06:17ZFerromagnetic Resonance Revised – Electrodynamic Approach10.1038/s41598-017-05827-72045-2322https://doaj.org/article/c0f8c42f79b34b17b3ecc87e5fc7a0db2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05827-7https://doaj.org/toc/2045-2322Abstract Resonance in a ferromagnetic sphere, known in the body of literature as the mode of uniform precession, has recently been proven to be magnetic plasmon resonance (MPR). This finding has prompted research which is presented in this paper on the relation between the Q-factor at the MPR and the ferromagnetic resonance (FMR) linewidth ΔH, which is a parameter of magnetized gyromagnetic materials. It is proven in this paper that ΔH can be unequivocally determined from the Q-factor measured at the MPR, if all losses in the resonance system are properly accounted for. It can be undertaken through a rigorous but simple electrodynamic study involving the transcendental equation, as proposed in this paper. The present study also reveals that electric losses have a substantially reduced impact on ΔH due to the large magnetic to electric energy storage ratio at the MPR. Theoretical results are supported by measurements of the Q-factors on a monocrystalline yttrium iron garnet (YIG) sphere.Jerzy KrupkaPavlo AleshkevychBartlomiej SalskiPawel KopytAdam PacewiczNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jerzy Krupka Pavlo Aleshkevych Bartlomiej Salski Pawel Kopyt Adam Pacewicz Ferromagnetic Resonance Revised – Electrodynamic Approach
description	Abstract Resonance in a ferromagnetic sphere, known in the body of literature as the mode of uniform precession, has recently been proven to be magnetic plasmon resonance (MPR). This finding has prompted research which is presented in this paper on the relation between the Q-factor at the MPR and the ferromagnetic resonance (FMR) linewidth ΔH, which is a parameter of magnetized gyromagnetic materials. It is proven in this paper that ΔH can be unequivocally determined from the Q-factor measured at the MPR, if all losses in the resonance system are properly accounted for. It can be undertaken through a rigorous but simple electrodynamic study involving the transcendental equation, as proposed in this paper. The present study also reveals that electric losses have a substantially reduced impact on ΔH due to the large magnetic to electric energy storage ratio at the MPR. Theoretical results are supported by measurements of the Q-factors on a monocrystalline yttrium iron garnet (YIG) sphere.
format	article
author	Jerzy Krupka Pavlo Aleshkevych Bartlomiej Salski Pawel Kopyt Adam Pacewicz
author_facet	Jerzy Krupka Pavlo Aleshkevych Bartlomiej Salski Pawel Kopyt Adam Pacewicz
author_sort	Jerzy Krupka
title	Ferromagnetic Resonance Revised – Electrodynamic Approach
title_short	Ferromagnetic Resonance Revised – Electrodynamic Approach
title_full	Ferromagnetic Resonance Revised – Electrodynamic Approach
title_fullStr	Ferromagnetic Resonance Revised – Electrodynamic Approach
title_full_unstemmed	Ferromagnetic Resonance Revised – Electrodynamic Approach
title_sort	ferromagnetic resonance revised – electrodynamic approach
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c0f8c42f79b34b17b3ecc87e5fc7a0db
work_keys_str_mv	AT jerzykrupka ferromagneticresonancerevisedelectrodynamicapproach AT pavloaleshkevych ferromagneticresonancerevisedelectrodynamicapproach AT bartlomiejsalski ferromagneticresonancerevisedelectrodynamicapproach AT pawelkopyt ferromagneticresonancerevisedelectrodynamicapproach AT adampacewicz ferromagneticresonancerevisedelectrodynamicapproach
_version_	1718388539876442112

Ferromagnetic Resonance Revised – Electrodynamic Approach

Ejemplares similares