Ultrasensitive SQUID nanoprobes for high-resolution magnetic field images Researchers from the SNI network have developed innovative, extremely small, and robust magnetic field probes that enable high-resolution images of nanoscale magnetic structures. The sensors are based on superconducting quantum interference devices (SQUIDs) – superconducting components that are among the most sensitive magnetometers precisely detecting even very weak magnetic fields. SNI post: https://bit.ly/4qZissY Original publication: https://journals.aps.org/prapplied/ab- stract/10.1103/6s24-vz3k A SQUID fabricated directly at the tip of silicon cantilever is able to achieve magnetic field imag- ing with a resolution of less than 100 nanometers at low temperatures. (Image: Department of Physics, University of Basel) 33 SNI Annual Report 2025