“…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.…”
Section: Discussionmentioning
confidence: 99%
“…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.…”
Section: Magnetization Measurements Via Critical Current Measurementsmentioning
“…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.…”
Section: Discussionmentioning
confidence: 99%
“…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.…”
Section: Magnetization Measurements Via Critical Current Measurementsmentioning
“…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].…”
“…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.…”
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