Modeling of Toroidal Ordering in Ferroelectric Nanodots

Abstract

This report details progress and the completed study of ferroelectric properties in nanodots for potential application to toroidal ordering concepts in nonvolatile memory materials. The work was performed under support through the Student Temporary Employment Program at the U.S. Army Research Laboratory. Beginning with an introduction of basic concepts, the report reviews the current state-of-the-art of ferroelectric nanodot technology through a literature review and identifies areas of need for continued study. As part of the review, Ewald's summation for Coulomb interactions in periodic crystals, a critical contribution to the atomistic energy that enables the long-range ordering in ferroelectric solids, was derived and is presented in the appendix.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2007
Accession Number
ADA469830

Entities

People

  • Joshua C. Crone
  • Peter W. Chung

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Critical Temperature
  • Curie Temperature
  • Dielectrics
  • Domain Walls
  • Electric Fields
  • Electromagnetic Fields
  • Equations
  • Ferroelectric Crystals
  • Ferroelectric Materials
  • Free Energy
  • Literature Surveys
  • Magnetic Fields
  • Materials
  • Memory Devices
  • Military Research
  • Phase Transformations
  • Voltage

Readers

  • Materials Science and Engineering.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Technical Research and Report Writing.