Superconducting Pb as material for coplanar waveguide resonators on GaAs substrates

Highlights: • We investigate Pb as a material for superconducting coplanar waveguide resonators. • It is easily processed, has high T_C, and high tolerance against magnetic fields. • Corrosion during aging is present, but shown to be acceptable. - Abstract: We investigate Pb as a material for superconducting coplanar waveguide resonators. It is easily fabricated, has relatively high tolerance against magnetic fields, and possesses high T_C. It thus combines the advantages of the most widely used superconductors, Al and Nb, which is especially beneficial for experiments on (Al,Ga)As-based heterostructures. Its main disadvantage is corrosion during aging which we have shown to be present, but acceptable on GaAs substrates