title: Ba7Mn5Cr2O20: charge and chemical order.
abstract: Ba7Mn5Cr2O2O20 adopts a structure containing an ordered array of Mn(IV), Mn(II) and Cr(V) cations and exhibits complex magnetic behaviour at low temperature.
authors: Department of Chemistry, Inorganic Chemistry Laboratory, South Parks Road, Oxford, UK.
authors: Sarah J
authors: SJ
authors: Dunstone
authors: Joanna H
authors: JH
authors: Clark
authors: Michael A
authors: MA
authors: Hayward