n=2 Member of the hexagonal perovskite-intergrowth manganate family An+1MnnO3n+3(Ca2O)

The n=2 member in hexagonal perovskite manganate family An+1MnnO3n+3(Ca2O) was obtained in a complex composition La2Ba0.8Sr0.6Ca1.6Mn2O10, but simple hexagonal structure. It crystallizes in the hexagonal P63/mmc space group [a=5.63591(5) Å, c=16.2843(3) Å, V=447.948(9) Å3; Z=2] and consists of double hexagonal perovskite layers (2H-type) and graphite-like [Ca2O] layer. The manganese octahedra share faces resulting in localized magnetic property.