تقرير
Magnetic field resilient high kinetic inductance superconducting niobium nitride coplanar waveguide resonators
العنوان: | Magnetic field resilient high kinetic inductance superconducting niobium nitride coplanar waveguide resonators |
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المؤلفون: | Yu, Cécile Xinqing, Zihlmann, Simon, Fernández-Bada, Gonzalo Troncoso, Thomassin, Jean-Luc, Gustavo, Frédéric, Dumur, Étienne, Maurand, Romain |
المصدر: | Appl. Phys. Lett. 118, 054001 (2021) |
سنة النشر: | 2020 |
المجموعة: | Condensed Matter |
مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
الوصف: | We characterize niobium nitride (NbN) $\lambda/2$ coplanar waveguide resonators, which were fabricated from a 10nm thick film on silicon dioxide grown by sputter deposition. For films grown at 120{\deg}C we report a superconducting critical temperature of 7.4K associated with a normal square resistance of 1k$\Omega$ leading to a kinetic inductance of 192pH/$\Box$. We fabricated resonators with a characteristic impedance up to 4.1k$\Omega$ and internal quality factors $Q_\mathrm{i} > 10^4$ in the single photon regime at zero magnetic field. Moreover, in the many photons regime, the resonators present high magnetic field resilience with $Q_\mathrm{i} > 10^4$ in a 6T in-plane magnetic field as well as in a 300mT out-of-plane magnetic field. These findings make such resonators a compelling choice for cQED experiments involving quantum systems with small electric dipole moments operated in finite magnetic fields. |
نوع الوثيقة: | Working Paper |
DOI: | 10.1063/5.0039945 |
URL الوصول: | http://arxiv.org/abs/2012.04366 |
رقم الأكسشن: | edsarx.2012.04366 |
قاعدة البيانات: | arXiv |
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