Rf superconducting quantum interference device metamaterials

N. Lazarides; G. P. Tsironis

doi:10.1063/1.2722682

Rf superconducting quantum interference device metamaterials

N. Lazarides, G. P. Tsironis

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Abstract

A rf superconducting quantum interference device (SQUID) array in an alternating magnetic field is investigated with respect to its effective magnetic permeability, within the effective medium approximation. This system acts as an inherently nonlinear magnetic metamaterial, leading to negative magnetic response, and thus negative permeability above the resonance frequency of the individual SQUIDs. Moreover, the permeability exhibits oscillatory behavior at low field intensities, allowing its tuning by a slight change of the intensity of the applied field.

Original language	British English
Article number	163501
Journal	Applied Physics Letters
Volume	90
Issue number	16
DOIs	https://doi.org/10.1063/1.2722682
State	Published - 2007

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abstract = "A rf superconducting quantum interference device (SQUID) array in an alternating magnetic field is investigated with respect to its effective magnetic permeability, within the effective medium approximation. This system acts as an inherently nonlinear magnetic metamaterial, leading to negative magnetic response, and thus negative permeability above the resonance frequency of the individual SQUIDs. Moreover, the permeability exhibits oscillatory behavior at low field intensities, allowing its tuning by a slight change of the intensity of the applied field.",

author = "N. Lazarides and Tsironis, {G. P.}",

note = "Funding Information: The authors acknowledge support from the grant “Pythagoras II” (KA. 2102/TDY 25) of the Greek Ministry of Education and the European Union and Grant No. 2006PIV10007 of the Generalitat de Catalunia, Spain.",

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AB - A rf superconducting quantum interference device (SQUID) array in an alternating magnetic field is investigated with respect to its effective magnetic permeability, within the effective medium approximation. This system acts as an inherently nonlinear magnetic metamaterial, leading to negative magnetic response, and thus negative permeability above the resonance frequency of the individual SQUIDs. Moreover, the permeability exhibits oscillatory behavior at low field intensities, allowing its tuning by a slight change of the intensity of the applied field.

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Rf superconducting quantum interference device metamaterials

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