Structurally-driven metal–insulator transition in Ca2Ru1−xCrxO4 (0≤x<0.14): A single crystal X-ray diffraction study

Correlation between structure and transport properties are investigated in high-quality single-crystals of Ca2Ru1−xCrxO4 with 013.5% and the system behaves as an insulator. Such a large, sharp metal–insulator transition and tuneable transition temperature may have potential applications in electronic devices.