The relaxational properties of compositionally disordered ABO 3 perovskites

Random lattice disorder produced by chemical substitution in ABO 3 perovskites can lead to the formation of dipolar impurities and defects that have a profound influence on the static and dynamic properties of these materials that are the prototypical soft ferroelectric (FE) mode systems.In these highly polarizable host lattices, dipolar entities form polar nanodomains whose size is determined by the dipolar correlation length, r c , of the host and that exhibit dielectric relaxation in an applied ac field.In the very dilute limit (

• UD
  U.S. Department of Energy

  Award: AC04-94AL85000
• BE
  Basic Energy Sciences

  Award: DE-AC04-94AL85000
• SN
  Sandia National Laboratories

  Awards: DE-AC04-94AL85000, AC04-94AL85000
• DO
  Division of Materials Sciences and Engineering