Emergence of room-temperature ferroelectricity at reduced dimensions
Abstract
Thin ferroelectric films are needed in computers and medical devices. However, traditional ferroelectric films typically become less and less polarized the thinner the films become. Instead of using a good ferroelectric and making it thinner, Lee et al. started with SrTiO 3 , which in its bulk form is not ferroelectric. This material does have naturally occurring nanosized polarized regions. and when the thickness of the SrTiO 3 films reaches the typical size of these regions, the whole film aligns and becomes ferroelectric.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 18, 2015
- Source ID
- 10.1126/science.aaa6442
Entities
People
- A. Gruverman
- C. B. Eom
- D. A. Tenne
- Dongjin Lee
- E. Y. Tsymbal
- Evgeny Mikheev
- H. Lu
- K. Song
- L.-q. Chen
- S. H. Oh
- S. Stemmer
- S.-d. Li
- S.-y. Choi
- Sangwoo Ryu
- Shang‐Fan Lee
- T. R. Paudel
- Xinghua Wu
- Yong Gu
Organizations
- Boise State University
- National Energy Research Scientific Computing Center
- National Research Foundation of Korea
- National Science Foundation
- Office of Science
- Pennsylvania State University
- Pohang University of Science and Technology
- Temple University
- United States Department of Energy
- University of California, Santa Barbara
- University of Nebraska–Lincoln
- University of Wisconsin–Madison