Researchers report that a material (hexagonal HP-BaCoO3) made under high-pressure (6 GPa, 1200 °C) and was tested at ambient-pressure. The material (with a 2H crystal structure) has a short intrachain Co–Co distance of about 2.07 Å. The magnetization investigation revealed robust diamagnetic behavior below approximately 130 K when the material was exposed to weak applied …
