Broken particle-hole symmetry at atomically flat a-axis YBa2Cu3O7-d interfaces

Bruce A. Davidson, Revaz Ramazashvili, Simon Kos +1

We have studied quasiparticle tunneling into atomically flat a-axis films of YBa2Cu3O7-d and DyBa2Cu3O7-d through epitaxial CaTiO3 barriers. The junction heterostructures were grow…