Electrodynamic theory of ferromagnetic resonance and its applications in precise measurements of ferromagnetic linewidth, permeability tensor and saturation magnetization

Jerzy Krupka , Adam Pacewicz , Bartłomiej Wacław Salski , Paweł Kopyt

Abstract

This review paper describes the state of the art in measurements of ferromagnetic linewidth, permeability tensor and saturation magnetization employing electrodynamic theory of ferromagnetic resonance. It is shown that the electrodynamic theory allows significant improvements of measurement accuracy of these parameters with respect to the commonly used perturbation and magnetostatics theories. Contrary to the perturbation method the electrodynamic theory is not limited to small samples. It allows determination of the resonance frequencies and Q-factors for arbitrary size spherical and cylindrical gyromagnetic samples in suitably chosen metal enclosures. Results obtained with the electrodynamic theory for very small samples are identical to those obtained with perturbation and magnetostatics theories. Results of measurements of the ferromagnetic linewidth, permeability tensor and saturation magnetization at microwave frequencies are presented.
Author Jerzy Krupka (FEIT / MO)
Jerzy Krupka,,
- The Institute of Microelectronics and Optoelectronics
, Adam Pacewicz (FEIT / IRMT)
Adam Pacewicz,,
- The Institute of Radioelectronics and Multimedia Technology
, Bartłomiej Wacław Salski (FEIT / IRMT)
Bartłomiej Wacław Salski,,
- The Institute of Radioelectronics and Multimedia Technology
, Paweł Kopyt (FEIT / IRMT)
Paweł Kopyt,,
- The Institute of Radioelectronics and Multimedia Technology
Journal seriesAIP Advances, ISSN 2158-3226
Issue year2020
Vol10
No1
Article number015018
ASJC Classification3100 General Physics and Astronomy
DOIDOI:10.1063/1.5127859
URL https://aip.scitation.org/doi/full/10.1063/1.5127859
Languageen angielski
Score (nominal)70
Score sourcejournalList
ScoreMinisterial score = 70.0, 22-06-2020, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.736; WoS Impact Factor: 2018 = 1.579 (2) - 2018=1.731 (5)
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