Electrically and magnetically resonant dc-SQUID metamaterials
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We propose a superconducting metamaterial design consisting of meta-atoms which are each composed of a direct current superconducting quantum interference device and a superconducting rod. This design provides negative refraction index behavior for a wide range of structure parameters.
KeywordsResonant Frequency Josephson Junction Mutual Inductance Relative Magnetic Permeability Squid Loop
The research work was partially supported by the European Union Seventh Framework Program (FP7-REGPOT-2012-2013-1) under Grant Agreement No. 316165. Partial support by the Ministry of Education and Science of Russian Federation in the framework of Increase Competitiveness Program of the NUST MISIS (Contracts No. K2-2015-002, K2-2015-007 and K2-2016-051) is gratefully acknowledged.
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