CaY

CaY is a metallic intermetallic compound composed of calcium and yttrium. Its electronic character is defined by a lack of a band gap, placing it firmly within the category of metallic conductors rather than semiconductors or insulators. The material exhibits significant structural complexity, as evidenced by the large number of reported configurations across various databases. Due to its position above the thermodynamic hull, it is considered a metastable phase that requires specific synthesis conditions to stabilize. Its role as a metallic system makes it an interesting subject for studying alloy behavior and atomic packing in binary systems where the constituent elements possess distinct chemical properties. Researchers investigate such phases to understand the limits of solid-state stability and the potential for unique phase transformations in high-temperature or high-pressure environments.