Network Role: The London Centre for Nanotechnology (LCN) is an expert in the fabrication and measurement of nanoelectronic devices, growing functional semiconducting and superconducting thin films and nanowires using molecular-beam epitaxy and/or sputtering. Within PicoFIB, the LCN will provide novel materials for testing nanodevice fabrication methodologies by He/Ne lithography, with the UK's first neon-beam FIB facility. The LCN can perform electrical measurements of these patterned devices at temperatures from 20 mK to 300 K and at frequencies from d.c. to tens of GHz to correlate nanoscale ion beam processing/patterning to (quantum) device performance.