Combined powder neutron and X-ray diffraction study of charge and orbital order in Bi0.75Sr0.25MnO3

A model for charge and orbital order in Bi0.75Sr0.25MnO3 is proposed from a high-resolution powder X-ray and neutron diffraction study. An ordered intergrowth of antiferro-orbitally ordered (LaMnO3 type) and charge and ferro-orbitally ordered (YBaMn2O6 type) blocks is found, in agreement with previous electron microscopy images.