Presentation Type
Poster
Nanodynamics of Ferroelectric Ultrathin Films
Abstract
Nanodynamics of Ferroelectric Ultrathin Films
Ryan Herchig, Qingteng Zhang,and I. Ponomareva
Physics Department
A promising area of research in science is in the study of nanoscale mate-
rials and devices since they will one day be used in tomorrow's technological
devices. One very active eld in nanoscale science is that of ferroelectric
ultrathin films, or nanoscopicly thin pieces of crystal. Our work involves
an atomistic exploration of dynamics of these ultrathin films through accu-
rate computational experiments. The goal is to reveal the mechanisms that
govern such dynamics and propose novel applications which employ them.
Examples of such applications include faster and higher density memory stor-
age for future electronic devices and ultra sensitive nanosensors. The type
of crystalline material which we use for our computational experiments is
made of Zirconium, Titanium, and Oxygen, and is one of the most tech-
nologically important alloys currently being studied. Nanodomains are the
boundaries in the film between the regions where most of the electric dipoles
are oriented upward and where most are oriented downward. The evolution
of these domain walls with time are studied for films of different dimensions
at different electric field amplitudes in order to gain a full understanding of
the high-frequency dynamics of the nanostripe domains.
This work is supported by DOE grant DE-SC0005245, USF R070699.
Categories
Engineering/Physical Science
Research Type
Course Related
Mentor Information
Dr. Ponomareva
Nanodynamics of Ferroelectric Ultrathin Films
Nanodynamics of Ferroelectric Ultrathin Films
Ryan Herchig, Qingteng Zhang,and I. Ponomareva
Physics Department
A promising area of research in science is in the study of nanoscale mate-
rials and devices since they will one day be used in tomorrow's technological
devices. One very active eld in nanoscale science is that of ferroelectric
ultrathin films, or nanoscopicly thin pieces of crystal. Our work involves
an atomistic exploration of dynamics of these ultrathin films through accu-
rate computational experiments. The goal is to reveal the mechanisms that
govern such dynamics and propose novel applications which employ them.
Examples of such applications include faster and higher density memory stor-
age for future electronic devices and ultra sensitive nanosensors. The type
of crystalline material which we use for our computational experiments is
made of Zirconium, Titanium, and Oxygen, and is one of the most tech-
nologically important alloys currently being studied. Nanodomains are the
boundaries in the film between the regions where most of the electric dipoles
are oriented upward and where most are oriented downward. The evolution
of these domain walls with time are studied for films of different dimensions
at different electric field amplitudes in order to gain a full understanding of
the high-frequency dynamics of the nanostripe domains.
This work is supported by DOE grant DE-SC0005245, USF R070699.
