Publikation: Characterization of quasiparticle relaxation times in microstrips of NbReN for perspective applications for superconducting single-photon detectors
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The study of the flux-flow instability in superconducting materials has recently gained renewed attention due to its potential implications for the use of the analyzed materials as micrometer-sized superconducting detectors for single photons. The values of the quasiparticle relaxation time (TE) measured for these detectors are affected by pinning properties. Here, we report electric transport properties of NbReN microstrips of different quality. For the strip characterized by high resistivity, and large critical currents and pinning, we estimate a value of TE that is almost two orders of magnitude larger compared to that of another strip with a smaller value for the critical current, for which we measure TE ps. This low value is comparable to those reported in the literature for microstrips made of other highly-disordered superconductors. Our results suggest that NbReN microstrips have great potential for the realization of superconducting single-photon detectors, depending on further optimization of their fabrication process and the superconducting properties affected by it.
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MAKHDOUMI KAKHAKI, Zahra, Antonio LEO, Alfredo SPURI, Mikkel EJRNAES, Loredana PARLATO, Giampiero PEPE, Francesco AVITABILE, Angelo DI BERNARDO, Angela NIGRO, Carmine ATTANASIO, 2024. Characterization of quasiparticle relaxation times in microstrips of NbReN for perspective applications for superconducting single-photon detectors. In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology. Elsevier. 2024, 304, 117376. ISSN 0921-5107. eISSN 1873-4944. Verfügbar unter: doi: 10.1016/j.mseb.2024.117376BibTex
@article{MakhdoumiKakhaki2024-06Chara-70125, year={2024}, doi={10.1016/j.mseb.2024.117376}, title={Characterization of quasiparticle relaxation times in microstrips of NbReN for perspective applications for superconducting single-photon detectors}, volume={304}, issn={0921-5107}, journal={Materials Science and Engineering B: Solid-State Materials for Advanced Technology}, author={Makhdoumi Kakhaki, Zahra and Leo, Antonio and Spuri, Alfredo and Ejrnaes, Mikkel and Parlato, Loredana and Pepe, Giampiero and Avitabile, Francesco and Di Bernardo, Angelo and Nigro, Angela and Attanasio, Carmine}, note={Article Number: 117376} }
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