This article is cited in 9 papers

CONFERENCES AND SYMPOSIA

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

A. B. Shvartsburg^abc, V. Ya. Pecherkin^a, L. M. Vasilyak^a, S. P. Vetchinin^a, V. E. Fortov<sup>a

a</sup> Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow
^b Space Research Institute, Russian Academy of Sciences, Moscow
^c Far Eastern Federal University, Vladivostok

Abstract: We review 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. We calculate and measure resonances in field spectra in the near zone of such dipoles. We demonstrate the inversion of the magnetic inductance flux and the formation of a negative magnetic permeability in the resonant range of dielectric magnetic dipoles. We also investigate, 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 nano„structures with alternating-sign magnetic permeability are discussed.

Keywords: displacement current, dielectric metamaterial, dielectric magnetic dipole, interaction of resonant dipoles, negative magnetic permeability.

PACS: 75.78.-n, 77.84.-s

MSC: 78-05, 78A25

Received: April 5, 2017
Accepted: April 5, 2017

DOI: 10.3367/UFNr.2017.03.038139

 English version: Physics–Uspekhi, 2018, 61:7, 698–706

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