BaMnO

BaMnO is a compound of barium (Ba), manganese (Mn), and oxygen (O), with the chemical formula BaMnO3. It is a member of the perovskite family of materials, which are known for their unique crystal structures and diverse properties. The compound crystallizes in an orthorhombic structure at room temperature, with a space group of Pnma.

BaMnO3 is an antiferromagnetic material, meaning that its magnetic moments are aligned in an alternating pattern, resulting in a net magnetization of zero. The antiferromagnetic transition temperature is approximately 100 K. The material exhibits a metal-insulator transition at around 250 K, where it changes from a metallic conductor to an insulator.

The electronic structure of BaMnO3 is characterized by a half-filled Mn 3d band, which leads to strong electron correlations. This results in a complex magnetic and electronic behavior, including the possibility of charge and orbital ordering at low temperatures.

BaMnO3 has been studied for its potential applications in spintronic devices, due to its antiferromagnetic properties and the possibility of controlling its magnetic state through external stimuli such as electric fields. Additionally, the material has been investigated for its catalytic properties, as it can facilitate various chemical reactions.

In summary, BaMnO3 is a perovskite oxide with a unique combination of magnetic and electronic properties, making it an interesting material for both fundamental research and potential applications.