Noise Properties of NbN-MgO-NbN SQUIDs
作者： O. Dössel , B. David , D. Grundler , R. Kobs , K.-M. Lüdeke
DOI: 10.1007/978-3-642-77457-7_57
关键词:
摘要: DC-SQUIDs made of refractive materials NbN-MgO-NbN were prepared using thin film preparation techniques. The noise properties these SQUIDs investigated. white energy sensitivity typical devices is 600h (8mF0/AHz). measured values are compared with theoretical predictions and the standard optimization rules. low frequency was directly different modulation schemes. show a relatively high 1/f onset in range 100Hz. main contribution comes from out-of-phase critical current fluctuations can be effectively suppressed by bias modulation.
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