Presentation Type

Poster

Presenter Information

Ryan HerchigFollow

Title of Abstract

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

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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.