Niobium oxynitrides with defective rock salt-type structures

The effect of crystal structural defects on superconductivity was investigated in two types of rock salt-type niobium oxynitride structures, (Nb0·87Si0.09□0.04) (N0·87O0.13) and Nb4(N,O)5. The first oxynitride had been reported to have an enhanced critical superconducting current Jc by the doping of...

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Veröffentlicht in:	Journal of alloys and compounds 2019-09, Vol.803, p.678-683
Hauptverfasser:	Tateno, Kota, Masubuchi, Yuji, Kikkawa, Shinichi
Format:	Artikel
Sprache:	eng
Schlagworte:	Ammonolysis Annealing Cations Critical current density Crystal defects Crystal lattices Crystal structural defect Crystal structure Crystallinity Halites High temperature Impurities Lattice vacancies Magnetic measurement Niobium nitride Niobium oxides Niobium oxynitride Nitrogen Oxynitrides Pressure effects Rock salt-type structure Silicon dioxide Superconductivity
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