Conspectus The lone pair has been a known feature of the electronic structure of molecules
for over 100 years. Beginning with the pioneering work of Lewis and others that was later …

As part of a continued push for high permittivity dielectrics suitable for use at elevated
operating temperatures and/or large electric fields, modifications of BaTiO3 with Bi (M) O3 …

Coprecipitation synthesis methods followed by microwave sintering techniques were utilized
to obtain dense phase pure Bi2Ti2O7 polycrystalline ceramic pellets. No evidence of …

The crystal structure of sodium bismuth titanate (NBT) and related compounds is of great
interest, as these may form part of a new generation of ferroelectric materials used in a …

Over the past five years, the use of pair distribution function (PDF) methods to study local
structure has become increasingly prominent in the mainstream materials chemistry …

The stereochemical activity of lone pair electrons plays a central role in determining the
structural and electronic properties of both chemically simple materials such as H2O, as well …

Materials with the pyrochlore/fluorite structure have diverse technological applications, from
magnetism to nuclear waste disposal. Here we report the observation of structural instability …

Functional materials design normally focuses on structurally ordered systems because
disorder is considered detrimental to many functional properties. Here we challenge this …

Abstract Pyrochlore Pr 3+ 2+ x Zr 4+ 2− x O 7− x/2 samples in the form of both powders (−
0.02≤ x≤ 0.02) and bulk single crystals have been studied to elucidate the dependence of …

The complex crystallographic structures of (1− x) BaTiO 3-xBi (Zn 1/2 Ti 1/2) O 3 (BT-xBZT)
are examined using high resolution synchrotron X-ray diffraction, neutron diffraction, and …