Superconducting properties of an NbN–SiO2 disordered system obtained by ammonolysis of NbN–SiO2 sol–gel derived coatings

Structure and superconductivity of VN–SiO2 films obtained by thermal nitridation of sol–gel derived coatings

“…Recently, it has been reported that an addition of Si may improve some physical properties of NbN [11]. Similar behaviour was observed in NbN-SiO 2 samples [12]. In this case an addition of SiO 2 improved the superconducting properties of the samples.…”

“…Apart from x = 90, all the samples exhibit the superconducting transition. It may be possible that an addition of SiO 2 can improve the superconducting properties of VN-SiO 2 samples, as it takes place in NbNSiO 2 films prepared with the same method [12]. It could be also possible that the SiO 2 content in the x = 90 sample is too low to improve superconductivity, however the reason for this behaviour is not clear yet.…”

Transport Properties of Nitrided VN-SiO2Sol-Gel Derived Films

“…Recently it has been reported, that Si addition may improve some physical properties of NbN [7]. A similar behavior was observed in NbNSiO 2 samples [8]. In this case SiO 2 addition improved superconducting properties of the samples.…”

“…It may be possible, that SiO 2 addition can improve the superconducting properties of VNSiO 2 samples, as it happens in NbNSiO 2 lms prepared with the same method [8], however the reason of this behavior is not clear yet. The best superconducting properties were observed for x = 70 sample.…”

Superconducting Properties of NbN-SiO2Sol-Gel Derived Thin Films

“…It may be successfully used in several superconducting microelectronic applications such as SQUID, filters, antennae [1,2] or superconducting cavities for particle accelerators [3]. Recently it * corresponding author; e-mail: basia@mif.pg.gda.pl has been reported that Si or SiO 2 addition may improve some physical properties of NbN [4,5].…”