Properties of Nb Variable-thickness Bridge DC Squids |
Common terms and phrases
Abrikosov Vortices applied field beating mode branches bridge bumps cause characteristics cleaned compared constant constructed corresponding created critical current current-phase relationship DC SQUID define dependence dimensional double dynamic resistance etching explained fabrication fibers flux geometry given gives hysteresis I--V surface I-V curves ideal increases inductance interference pattern Josephson junc layer leads length less loop lower magnetic field measured microbridges modulation Nb film Nb VTB Nb VTB DC noise observed obtained operation pair path period phase Phys picture plot produced properties Quartz fibers reason region removed reported resistance result RF SQUID ridge running self-field effect sensitivity shown in Fig shows single junction sputtering SQUID response structure substrates superconducting switching temperature thick thin tions trapping tunnel junction voltage vortices Voss VTB DC SQUIDS weak links wire