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Niobium-germanium

Niobium-germanium (NbGe) is a metallic chemical compound of niobium (Nb) and germanium (Ge). It has A15 phase structure.

It is a superconductor with a critical temperature of 23.2 kelvin (K).

Sputtered films have been reported to have an upper critical field of 37 teslas at 4.2 K.