Demonstration of high-impedance superconducting NbRe Dayem bridges

S. Battisti; J. Koch; A. Paghi; L. Ruf; A. Gulian; S. Teknowijoyo; C. Cirillo; Z. Makhdoumi Kakhaki; C. Attanasio; E. Scheer; A. Di Bernardo; G. De Simoni; F. Giazotto

doi:10.1063/5.0200257

arXiv · 2312.04331

Demonstration of high-impedance superconducting NbRe Dayem bridges

S. Battisti·J. Koch·A. Paghi·L. Ruf·A. Gulian·S. Teknowijoyo·C. Cirillo·Z. Makhdoumi Kakhaki·C. Attanasio·E. Scheer·A. Di Bernardo·G. De Simoni·F. Giazotto

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Abstract

Here we demonstrate superconducting Dayem-bridge weak-links made of different stoichiometric compositions of NbRe. Our devices possess a relatively high critical temperature, normal-state resistance, and kinetic inductance. In particular, the high kinetic inductance makes this material a good alternative to more conventional niobium-based superconductors (e.g., NbN or NbTiN) for the realization of superinductors and high-quality factor resonators, whereas the high normal-state resistance yields a large output voltage in superconducting switches and logic elements realized upon this compound. Moreover, out-of-plane critical magnetic fields exceeding 2 T ensure that possible applications requiring high magnetic fields can also be envisaged. Altogether, these features make this material appealing for a number of applications in the framework of quantum technologies.

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S. Battisti, J. Koch, A. Paghi, L. Ruf, A. Gulian, S. Teknowijoyo, C. Cirillo, Z. Makhdoumi Kakhaki, C. Attanasio, E. Scheer, A. Di Bernardo, G. De Simoni, F. Giazotto. 2023-12-07. Demonstration of high-impedance superconducting NbRe Dayem bridges. https://doi.org/10.1063/5.0200257

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