NanoSQUIDs from YBa${}_2$Cu${}_3$O${}_7$/SrTiO${}_3$ superlattices with bicrystal grain boundary Josephson junctions

J. Lin, J. Linek, R. Kleiner +1

We report on the fabrication and characterization of nanopatterned dc SQUIDs with grain boundary Josephson junctions based on heteroepitaxially grown YBa${}_2$Cu${}_3$O${}_7$ (YBCO)/ SiT…