Details
| Original language | English |
|---|---|
| Article number | 505301 |
| Number of pages | 6 |
| Journal | Journal of Physics D: Applied Physics |
| Volume | 57 |
| Issue number | 50 |
| Publication status | Published - 25 Sept 2024 |
Abstract
In this paper, we establish the relationship between the eigenmodes and the scattering characteristics of a meta-molecule made of magnetic disks from the point of view of the manifestation of its toroidal response. In particular, we examine the electric and magnetic dipole contributions to the scattering cross-sections obtained in the framework of the multipole decomposition method while accounting for the polarizability and magnetization induced in the structure by the field of incoming radiation. We find out that with increasing permeability, the toroidal mode is trapped in the meta-molecule due to the presence of its magnetization part, which may have a practical perspective in gyrotropy, permittivity, and permeability sensing.
Keywords
- magnetic particles., Mie theory, scattering
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Acoustics and Ultrasonics
- Materials Science(all)
- Surfaces, Coatings and Films
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In: Journal of Physics D: Applied Physics, Vol. 57, No. 50, 505301, 25.09.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Toroidal mode trapping in a magnetic meta-molecule
AU - Wu, Tong
AU - Evlyukhin, Andrey B.
AU - Tuz, Vladimir R.
N1 - Publisher Copyright: © 2024 IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.
PY - 2024/9/25
Y1 - 2024/9/25
N2 - In this paper, we establish the relationship between the eigenmodes and the scattering characteristics of a meta-molecule made of magnetic disks from the point of view of the manifestation of its toroidal response. In particular, we examine the electric and magnetic dipole contributions to the scattering cross-sections obtained in the framework of the multipole decomposition method while accounting for the polarizability and magnetization induced in the structure by the field of incoming radiation. We find out that with increasing permeability, the toroidal mode is trapped in the meta-molecule due to the presence of its magnetization part, which may have a practical perspective in gyrotropy, permittivity, and permeability sensing.
AB - In this paper, we establish the relationship between the eigenmodes and the scattering characteristics of a meta-molecule made of magnetic disks from the point of view of the manifestation of its toroidal response. In particular, we examine the electric and magnetic dipole contributions to the scattering cross-sections obtained in the framework of the multipole decomposition method while accounting for the polarizability and magnetization induced in the structure by the field of incoming radiation. We find out that with increasing permeability, the toroidal mode is trapped in the meta-molecule due to the presence of its magnetization part, which may have a practical perspective in gyrotropy, permittivity, and permeability sensing.
KW - magnetic particles.
KW - Mie theory
KW - scattering
UR - http://www.scopus.com/inward/record.url?scp=85205013726&partnerID=8YFLogxK
U2 - 10.1088/1361-6463/ad7bc6
DO - 10.1088/1361-6463/ad7bc6
M3 - Article
AN - SCOPUS:85205013726
VL - 57
JO - Journal of Physics D: Applied Physics
JF - Journal of Physics D: Applied Physics
SN - 0022-3727
IS - 50
M1 - 505301
ER -