Rf superconducting quantum interference device metamaterials

N. Lazarides, G. P. Tsironis

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    74 Scopus citations

    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 languageBritish English
    Article number163501
    JournalApplied Physics Letters
    Volume90
    Issue number16
    DOIs
    StatePublished - 2007

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