By including the contributions of dipolar defects in the time-dependent Ginzburg-Landau
theory, we have simulated the domain switching process in ferroelectrics. The model …

A Landau expansion of the elastic energy in the strains is used to study two-dimensional
structures in tetragonal-orthorhombic ferroelastics with constraints. Local energy minima are …

Research in the emerging field of nanoscale science and technology has grown steadily at
Los Alamos National Laboratory since 1990. This article summarizes some of this work …

We show how the St. Venant compatibility relations for strain in three dimensions lead to
twinning for the cubic to tetragonal transition in martensitic materials within a Ginzburg …

We show that specific signatures in the pair distribution function and x-ray and neutron-
scattering structure factors in a variety of functional elastic materials, previously ascribed to …

A radical change of philosophy from traditional solid state and manybody approaches
appears necessary to describe many classes of complex electronic materials, both inorganic …