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Abstract

Disclosed is a method to modify the superconductive properties of a potentially or effectively superconductive material. The method includes providing a reflective or photonic structure and placing said superconductive material in or on the structure. The method also includes providing a structure which has an electromagnetic mode which is resonant with a transition in the material and controlling, in particular enhancing, the superconductivity, and thus the mobility of the charge carriers. This results in a higher operating temperature and an increased electrical current in the material, by means of strongly coupling the material to the local electromagnetic vacuum field and exploiting the formation of states of spatial extension corresponding to the mode volume of the electromagnetic resonance. Also disclosed is an electronic, electro-optical or optoelectronic device including superconductive material located in or on a reflective or photonic structure.

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First Claim