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Dielectric resonant magnetic dipoles: paradoxes, prospects, the first experiments

 a, b,  a,  a, c,  a,  a
a Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 127412, Russian Federation
b Space Research Institute, Russian Academy of Sciences, Profsoyuznaya str. 84/32, Moscow, 117997, Russian Federation
c Moscow Institute of Physics and Technology (National Research University), Institutskii per. 9, Dolgoprudny, Moscow Region, 141701, Russian Federation

This paper reviews various forms of dielectric ring-shaped oscillating circuits excited by displacement currents due to the grazing incidence of GHz microwaves. Such circuits with azimuth displacement currents form resonant dielectric magnetic dipoles. The review calculates and measures resonances in the field spectra in the near zone of such dipoles. It demonstrates the inversion of magnetic inductance flux and the formation of negative magnetic permeability in the resonant range of dielectric magnetic dipoles. It also investigates, both analytically and experimentally, the resonant interaction spectra of a pair of magnetic dipoles excited by displacement currents. Finally, prospects for using these dipoles to model all-dielectric nanostructures with sign-alternating magnetic permeability are discussed.

Fulltext is available at IOP
Keywords: displacement current, dielectric metamaterial, dielectric magnetic dipole, interaction of resonant dipoles, negative magnetic permeability
PACS: 75.78.−n, 77.84.−s (all)
DOI: 10.3367/UFNe.2017.03.038139
Citation: Shvartsburg A B, Pecherkin V Ya, Vasilyak L M, Vetchinin S P, Fortov V E "Dielectric resonant magnetic dipoles: paradoxes, prospects, the first experiments" Phys. Usp. 61 698–706 (2018)
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Received: 13th, May 2018, 5th, April 2017

Оригинал: Шварцбург А Б, Печёркин В Я, Василяк Л М, Ветчинин С П, Фортов В Е «Диэлектрические резонансные магнитные диполи: парадоксы, перспективы, первые эксперименты» УФН 188 780–789 (2018); DOI: 10.3367/UFNr.2017.03.038139

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