Tunneling, resistive and structural study of NbN and other superconducting nitrides.

01 January 1985

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A straightforward method for producing metal nitrides, which we call Thin Film Diffusion (TFD) has been developed. With this technique we produced films of cubic nitrides (NbN, ZrN, VN, TiN) with superconducting transition temperatures up to 17.25K in NbN (equal to the highest known in this material) and up to 9.4K in VN (0.6K higher than the highest previously reported value) Resistive transitions are less than 0.1K in width, indicating, together with x-rays that samples are homogeneous and essentially single B1 phase.