title: Polar behavior in a magnetic perovskite from a-site size disorder: a density functional study.
abstract: We elucidate a mechanism for obtaining polar behavior in magnetic perovskites based on A-site disorder and demonstrate this mechanism by density functional calculations for the double perovskite (La,Lu)MnNiO6 with Lu concentrations at and below 50%. We show that this material combines polar behavior and ferromagnetism. The mechanism is quite general and may be applicable to a wide range of magnetic perovskites.
authors: Materials Science and Technology Division, Oak Ridge, Tennessee 37831-6114, USA.
authors: D J
authors: DJ
authors: Singh
authors: Chul Hong
authors: CH
authors: Park