The quasiparticle tunneling current (subgap leakage) and the low frequency critical current fluctuations in Josephson junctions fabricated at Stony Brook have been studied. The devices are fabricated from a Nb/AlOx /Nb trilayer using a lift-off process and employing optical and electron beam lithography.3.1 are measured by HP 34401A multimeters and data is acquired via a personal computer. ... modified for manual analog control of the magnet current bias, and partly due to irregularities in the shape of the Josephson junction .
|Title||:||Subgap Quasiparticle Transport and Low Frequency Critical Current Fluctuations in Niobium/aluminum Oxide/niobium Josephson Junctions|
|Author||:||Shawn Paul Swan Pottorf|
|Publisher||:||ProQuest - 2007|