Abstract
The effects of the copper-site holes and oxygen-site holes on structure, superconductivity, and normal state in have been studied by use of a method in which the hole concentrations at both sites are varied independently. The filling of the holes and the holes induces a tetragonal-to-orthorhombic structural transition. Such a behavior strongly supports the interpretation that the driving force for the bending of Cu-O-Cu bonds is the stabilization of the antibonding interaction. The two hole-filling processes generate profoundly different effects on normal-state transport, and magnetic susceptibility. We will discuss the causes of these highly asymmetrical effects.
- Received 26 July 1990
DOI:https://doi.org/10.1103/PhysRevB.43.1245
©1991 American Physical Society