SQUID magnetometer based on Grooved Dayem nanobridges and a flux transformer

Edoardo Trabaldo, Christoph Pfeiffer, Eric Andersson +5

We report noise measurements performed on a SQUID magnetometer implementing Grooved Dayem nanobridge of YBCO as weak-links. The SQUID shows magnetic flux noise as low as 10 $\mu {\Phi }_0$/…