Output details

Field-tuneable diamagnetism in ferromagnetic-superconducting core-shell structures

Significance of output:

The paper reports on 3d nanostructures with a superconducting core and a ferromagnetic shell. The interdisciplinary team grow the samples electrochemically, conduct measurements, and run simulations to enable interpretation of the measurements. The fundamental research shows that it is possible to switch the superconducting core on and off by controlling the magnetic structure of the shell with an external field: this affects the ferromagnetic layer, which (through its stray field) enhances or suppresses the superconductivity in the core. Possible applications include higher current carrying superconducting wires (e.g. for magnetic resonance imaging and power cables) to novel low-power superconducting memory devices.