Ternary Phases: Superconductivity, Magnetism and Crystallographic Stability

摘要

The rapid increase in the discovery of high transition temperature (T/sub c/) ternary superconducting systems is documented and reviewed in an attempt to discern any systematic, uniform behavior among the various ternary compounds. These superconducting compounds are often comprised of two metallic elements and one non-metal. This non-metallic element has attracted increasing attention due to the diversity of suitable elements (B, C, Si, Ge, P, O, S, Se) and its important role in forming a basic crystallographic framework. The third element in these compounds may be used to tune the electronic properties. In many instances, this third element is magnetic in nature and its presence in this metal/non-metal network may lead to long range magnetic order. Those phases that manifest this interplay between magnetism and superconductivity are emphasized. (ERA citation 07:054391)