Report „Devices / Heavy Fermion II“ Aug. 29, second part

Kenji Ishida reported in his invited talk on NMR and NQR studies on U-based ferromagnetic superconductors. He showed that in UCoGe a spin triplett superconducting state is induced by fluctuations. This is a new mechanism to suppress superconductivity.

A collaboration of groups from Japan and a group of Vietnam develops a scanning LTS-SQUID vector microscope with three orthogonal pick-up loops on a tip cooled by a commercial GM cryocooler. The sensors were tested and high spatial resolution demonstrated.

The figure shows the pick-up loops (left) and a trapped vortex structure measured by the new SQUID vector sensors within a commercial SSM (right).