= Superconducting material
A <superconducting material> supports a superconducting phase under an appropriate range of <temperature>, <magnetic field> and current. Those conditions, along with its gap structure and other microscopic properties, determine how it can be used.
<Critical temperature> alone is insufficient to compare applications. A wire may need a high critical current in a strong <magnetic field>, while a sensitive device may require low dissipation and well-controlled interfaces. Structural defects can pin vortices and alter current-carrying performance, making sample preparation and <measurement> conditions part of a useful material specification.
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