New features in the microwave response of YBCO crystals: Evidence for a multi-component order parameter

H. Srikanth, Balam A. Willemsen, T. Jacobs +4

New features are reported in precision measurements of the complex microwave conductivity of high quality $YB{a}_{2}C{u}_3{O}_{6.95}$ crystals grown in $BaZr{O}_3$ crucibles. A third p…