Accurate measurements of the ferromagnetic resonance linewidth of single crystal BaM hexaferrite spheres employing magnetic plasmon resonance theory

Adam Pacewicz; Jerzy Krupka; Jan H. Mikkelsen; Artem Lynnyk; Bartlomiej Salski

doi:10.1016/j.jmmm.2023.170902

Accurate measurements of the ferromagnetic resonance linewidth of single crystal BaM hexaferrite spheres employing magnetic plasmon resonance theory

Adam Pacewicz^*, Jerzy Krupka, Jan H. Mikkelsen, Artem Lynnyk, Bartlomiej Salski

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

1 Citation (Scopus)

Abstract

Accurate measurements of the intrinsic ferromagnetic linewidth of a single-crystal Sc-doped hexagonal M-type barium ferrite (BaM) 308-µm-diameter sphere at millimeter-wave frequencies employing a subwavelength cavity are described. The magnetic hysteresis of the resonance frequency and Q-factor of the dominant resonance (which has a plasmonic character) in a hexaferrite sphere are reported. Measurements performed in a fixture open to free space also show that the ferromagnetic linewidth significantly increases as compared to measurements in a closed cavity. This effect can be attributed to radiation losses, as revealed by an electrodynamic magnetic plasmon resonance model, and is relevant for measurements in open structures, such as microstrip lines or coplanar waveguides. The impact of finite resistivity on the linewidth was also analyzed.

Original language	English
Article number	170902
Journal	Journal of Magnetism and Magnetic Materials
Volume	580
ISSN	0304-8853
DOIs	https://doi.org/10.1016/j.jmmm.2023.170902
Publication status	Published - 15 Aug 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 The Authors

Keywords

Ferromagnetic linewidth
M-type barium ferrite
Millimeter waves
Radiation losses
Single-crystal
Sphere

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@article{445043109ee14b01ae6996e19c0126cd,

title = "Accurate measurements of the ferromagnetic resonance linewidth of single crystal BaM hexaferrite spheres employing magnetic plasmon resonance theory",

abstract = "Accurate measurements of the intrinsic ferromagnetic linewidth of a single-crystal Sc-doped hexagonal M-type barium ferrite (BaM) 308-µm-diameter sphere at millimeter-wave frequencies employing a subwavelength cavity are described. The magnetic hysteresis of the resonance frequency and Q-factor of the dominant resonance (which has a plasmonic character) in a hexaferrite sphere are reported. Measurements performed in a fixture open to free space also show that the ferromagnetic linewidth significantly increases as compared to measurements in a closed cavity. This effect can be attributed to radiation losses, as revealed by an electrodynamic magnetic plasmon resonance model, and is relevant for measurements in open structures, such as microstrip lines or coplanar waveguides. The impact of finite resistivity on the linewidth was also analyzed.",

keywords = "Ferromagnetic linewidth, M-type barium ferrite, Millimeter waves, Radiation losses, Single-crystal, Sphere",

author = "Adam Pacewicz and Jerzy Krupka and Mikkelsen, {Jan H.} and Artem Lynnyk and Bartlomiej Salski",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors",

year = "2023",

month = aug,

day = "15",

doi = "10.1016/j.jmmm.2023.170902",

language = "English",

volume = "580",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

}

Accurate measurements of the ferromagnetic resonance linewidth of single crystal BaM hexaferrite spheres employing magnetic plasmon resonance theory. / Pacewicz, Adam; Krupka, Jerzy; Mikkelsen, Jan H. et al.
In: Journal of Magnetism and Magnetic Materials, Vol. 580, 170902, 15.08.2023.

Research output: Contribution to journal › Journal article › Research › peer-review

TY - JOUR

T1 - Accurate measurements of the ferromagnetic resonance linewidth of single crystal BaM hexaferrite spheres employing magnetic plasmon resonance theory

AU - Pacewicz, Adam

AU - Krupka, Jerzy

AU - Mikkelsen, Jan H.

AU - Lynnyk, Artem

AU - Salski, Bartlomiej

PY - 2023/8/15

Y1 - 2023/8/15

N2 - Accurate measurements of the intrinsic ferromagnetic linewidth of a single-crystal Sc-doped hexagonal M-type barium ferrite (BaM) 308-µm-diameter sphere at millimeter-wave frequencies employing a subwavelength cavity are described. The magnetic hysteresis of the resonance frequency and Q-factor of the dominant resonance (which has a plasmonic character) in a hexaferrite sphere are reported. Measurements performed in a fixture open to free space also show that the ferromagnetic linewidth significantly increases as compared to measurements in a closed cavity. This effect can be attributed to radiation losses, as revealed by an electrodynamic magnetic plasmon resonance model, and is relevant for measurements in open structures, such as microstrip lines or coplanar waveguides. The impact of finite resistivity on the linewidth was also analyzed.

AB - Accurate measurements of the intrinsic ferromagnetic linewidth of a single-crystal Sc-doped hexagonal M-type barium ferrite (BaM) 308-µm-diameter sphere at millimeter-wave frequencies employing a subwavelength cavity are described. The magnetic hysteresis of the resonance frequency and Q-factor of the dominant resonance (which has a plasmonic character) in a hexaferrite sphere are reported. Measurements performed in a fixture open to free space also show that the ferromagnetic linewidth significantly increases as compared to measurements in a closed cavity. This effect can be attributed to radiation losses, as revealed by an electrodynamic magnetic plasmon resonance model, and is relevant for measurements in open structures, such as microstrip lines or coplanar waveguides. The impact of finite resistivity on the linewidth was also analyzed.

KW - Ferromagnetic linewidth

KW - M-type barium ferrite

KW - Millimeter waves

KW - Radiation losses

KW - Single-crystal

KW - Sphere

UR - http://www.scopus.com/inward/record.url?scp=85162221195&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2023.170902

DO - 10.1016/j.jmmm.2023.170902

M3 - Journal article

AN - SCOPUS:85162221195

SN - 0304-8853

VL - 580

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

M1 - 170902

ER -

Accurate measurements of the ferromagnetic resonance linewidth of single crystal BaM hexaferrite spheres employing magnetic plasmon resonance theory

Abstract

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Keywords

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