DC-SQUID with Aluminium Microbridges far from T c

Classical and Quantum Magnetization Reversal Studied in Nanometer‐Sized Particles and Clusters

“…After the development of micro-SQUID technique in the early 90's [43,44], the study of magnetization reversal in magnetic nano-structures began in 1993 [45]. The first studied systems were micrometer sized particles containing about 10 10 magnetic moments.…”

“…This hysteretic V − I curve made it impossible to use standard SQUID electronics or lock-in amplifier to read out the SQUID. Therefore, Benoit et al developed a method consisting in measuring the critical current of the micro-SQUID [43,44]. A computer-controlled circuit triggers simultaneously a current ramp ( Fig.…”

Niobium and niobium nitride SQUIDs based on anodized nanobridges made with an atomic force microscope

“…Applications of these nanobridge SQUIDs can be numerous, as larger Dayem SQUIDs obtained using electron beam lithography [29] have already been used in many different fields : mesoscopic physics with the measurement of persistent currents in 2D electron gas rings [30]. SQUID microscopy with high resolution vortex imaging [31], and nanomagnetism with the measurement of the magnetization reversal in nanoscale ferromagnetic particles [32].…”

Nucleation of Magnetization Reversal in Individual Nanosized Nickel Wires

“…We developed planar microbridge dc SQUID [7], made of Nb (thickness 20 nm), which were shown to be able to detect 10 4 m B [8]. The SQUID is made of a thin (20 nm) Nb layer in order to prevent flux trapping.…”