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Synthesis and Characterization of Superconducting Nanocrystalline Niobium Nitride

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Abstract:

Nanocrystalline niobium nitride (NbN0.9 ) was successfully synthesized at 600 °C through a solidstate reaction. The synthesis was carried out in an autoclave by using NbCl5 and NaN3 as the reactants. The X-ray powder diffraction pattern indicates the formation of cubic NbN0.9. Transmission electron microscopy images show that typical NbN0.9 crystallites are composed of uniform particles with an average size of about 30 nm and nanorod crystallites with a typical size of about 40 × 2500 nm. Magnetic measurements exhibited that a superconducting transition occurred at 15.4 K for the NbN0.9 product.

Keywords: CHEMICAL SYNTHESIS; NANOCRYSTALLINE; NIOBIUM NITRIDE; SUPERCONDUCTING; TRANSMISSION ELECTRON MICROSCOPY

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2005.040

Publication date: 2005-02-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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