Subgap induced by bilayer effects of CuO2 planes in high T-c superconductors

摘要

The bilayer effects of CuO2 planes in high-T-c superconductors are investigated. The interaction between a CuO2 bilayer is found to induce a subgap far below the superconducting transition temperature T-c. It is also shown that zero-bias-conductance-peaks (ZBCP) above T-c are due to a Kondo-type effect as for low-T-c superconductors, but ZBCP far below T-c originating from this bilayer effects are different from traditional explanations. [References: 14]