Previous Article Next Article Table of Contents Science, Vol.277, No.5322, 50-52, 1997 DOI10.1126/science.277.5322.50 Export Citation Low-Energy Excitations in High-Temperature Superconductors Lee PA Keywords:DENSITY-OF-STATES;YBA2CU3O7-DELTA;SCATTERING;SYMMETRY Please enable JavaScript to view the comments powered by Disqus.