Microstructural features and domain formation in (Ba,Sr)2TiSi2O8 fresnoites

  title={Microstructural features and domain formation in (Ba,Sr)2TiSi2O8 fresnoites},
  author={Chui Ling Wong and C. Ferraris and Timothy E. White},
Abstract The formation and co-existence of crystallographically modulated and non-modulated regions in (Ba,Sr) 2 TiSi 2 O 8 fresnoites is reviewed, particularly the dependence on local composition. It is shown that perturbations of the average fresnoite structure, determined from appreciable single crystals, are in some cases better described as nanometric domain intergrowths where departures from ideal stoichiometry are characteristics of incommensuration, while modulation is absent from… CONTINUE READING