A self-aligned nano-fabrication process for vertical NbN-MgO-NbN Josephson junctions

التفاصيل البيبلوغرافية
العنوان: A self-aligned nano-fabrication process for vertical NbN-MgO-NbN Josephson junctions
المؤلفون: Grimm, A., Jebari, S., Hazra, D., Blanchet, F., Gustavo, F., Thomassin, J. -L., Hofheinz, M.
المصدر: Supercond. Sci. Technol. 30, 105002 (2017)
سنة النشر: 2017
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Superconductivity
الوصف: We present a new process for fabricating vertical NbN-MgO-NbN Josephson junctions using self-aligned silicon nitride spacers. It allows for a wide range of junction areas from 0.02 um^2 to several 100 um^2. At the same time, it is suited for the implementation of complex microwave circuits with transmission line impedances ranging from < 1 Ohm to > 1 kOhm. The constituent thin films and the finished junctions are characterized. The latter are shown to have high gap voltages (> 4 mV) and low sub-gap leakage currents.
Comment: 5 pages, 3 figures, 3 tables
نوع الوثيقة: Working Paper
DOI: 10.1088/1361-6668/aa8007
URL الوصول: http://arxiv.org/abs/1705.05608
رقم الأكسشن: edsarx.1705.05608
قاعدة البيانات: arXiv
الوصف
DOI:10.1088/1361-6668/aa8007