Lately, because of the toxicity of lead and lead compounds, the interest in ferroelectric materials
without lead has grown considerably.
Binek said the formula might even work for ferroelectric materials
, whose alignment of positive and negative charges, or polarization, can be reversed by an electric field.
Traditional ferroelectric materials
are stiff; it is difficult for their large domains to rotate.
The approach has been used in ferroelectric materials
, but could also have applications in ferroelastics, solid protonic acids and materials known as relaxors.
Topics covered include: the synthesis, unique properties and application of magnetic oxide nanomaterials; high permeability and saturation magnetization of certain Mn-Zn Ferrites; synthesis and properties of M-type and Y-type hexaferrites; hydrodermal synthesis, characterization and properties of superparamagnetic iron oxide nonoparticles; theory and application of spin-torque nano-oscillator; ferroelectric superlattices with polarization perpendicular to the interface surface within the context of Landau-Ginzburg Theory; properties and an application of Ni doped Co-Zn nanoferrites; flexoelectricity in nanocscale dielectrics; and ferroelectric materials
for high temperature piezoelectric applications.
For example, he has found that simultaneously magnetic and ferroelectric materials
can enhance solar power conversion, including the use of sunlight to extract hydrogen from water.
A big amount of experimental data reports the behavior of several ferroelectric materials
such as Lead Zirconate Titanate (PZT) and Bismuth Titanate (BIT) , considering effects of temperature, stress and dopants, among other variables in relation with polarization and hysteresis.
Ferroelectricity is an electrical phenomenon of ferroelectric materials
may exhibit a spontaneous polarization which the direction of the polarization can be switched by the application of an external electric field.
and its composite films are essential components in a wide spectrum of remarkable applications (1), (2).
may outperform their magnetic counterparts in ultimate efficacy.
We are using a new nano-manufacturing method for creating three-dimensional nanostructures with high aspect ratios in ferroelectric materials
that have attractive piezoelectric properties," said Nazanin Bassiri-Gharb, an assistant professor in Georgia Tech's Woodruff School of Mechanical Engineering.
For the ferroelectric materials
tested, the critical field magnitude was 4 kV/cm.