title: Local structural properties of 0.5BiMnO3-0.5ATiO3 (A = Ba or Sr).
abstract: Neutron total scattering data have been used to probe the long- and short-range structure of 0.5BiMnO(3)-0.5ATiO(3) (A = Ba or Sr). Modelling of the total scattering data, using the reverse Monte Carlo (RMC) method, reveals local disorder that differs substantially from the average structure. Significantly, the Bi(3+) cations prefer to adopt an asymmetric coordination due to the influence of the lone-pair electrons.
authors.affiliation: The ISIS Facility, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire, UK OX11 0QX. stn@chalmers.se
authors.forename: Stefan T
authors.initials: ST
authors.lastname: Norberg
authors.forename: Stephen
authors.initials: S
authors.lastname: Hull
authors.forename: Roland
authors.initials: R
authors.lastname: Mathieu
authors.forename: Sten G
authors.initials: SG
authors.lastname: Eriksson