Measurement and noise performance of nano
نویسندگان
چکیده
Science and industry demand ever more sensitive measurements on ever smaller systems, as exemplified by spintronics, nanoelectromechanical system, and spin-based quantum information processing, where single electronic spin detection poses a grand challenge. Superconducting quantum interference devices SQUIDs have yet to be effectively applied to nanoscale measurements. Here, we show that a simple bilayer deposition route, combining photolithography with focused ion beam patterning, produces high performance nanoscale SQUIDs. W e present results of noise measurements on these nanoSQUIDs which correspond to a magnetic flux sensitivity of around 0.2 µ0 /Hz1/2. This represents one of the lowest noise values achieved for a SQUID device operating above 1 K.
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