Magnetic order in the organic–inorganic layer compound (CD3PO3)Mn·D2O: a neutron and synchrotron X-ray powder diffraction study

Abstract

Both long- and short-range magnetic order in the organic–inorganic layer compound (CD₃PO₃)Mn·D₂O has been studied by temperature-dependent powder neutron diffraction. Above 15 K the magnetic intensity is dominated by diffuse scattering due to two-dimensional short-range order while at lower temperatures Bragg diffraction indicates three-dimensional order. The long-range ordered magnetic structure is similar to that of AMnPO₄·D₂O (A = K, ND₄). The crystal structure of (CD₃PO₃)Mn·D₂O has been refined from neutron and synchrotron X-ray powder diffraction, including location of all D atoms.