Emergence of room-temperature ferroelectricity at reduced dimensions-Reference-Cited by-同舟云学术

Emergence of room-temperature ferroelectricity at reduced dimensions

Published:2015-09-18 Issue:6254 Volume:349 Page:1314-1317
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Lee D.¹,Lu H.²,Gu Y.³,Choi S.-Y.⁴,Li S.-D.⁵,Ryu S.¹,Paudel T. R.²,Song K.⁶,Mikheev E.⁷,Lee S.¹,Stemmer S.⁷,Tenne D. A.⁸,Oh S. H.⁶,Tsymbal E. Y.²,Wu X.⁵,Chen L.-Q.³,Gruverman A.²,Eom C. B.¹

Affiliation:

1. Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, WI 53706, USA.

2. Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588, USA.

3. Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802 USA.

4. Department of Materials Modeling and Characterization, Korea Institute of Materials Science, Changwon 642-831, Korea.

5. Department of Physics, Temple University, Philadelphia, PA 19122, USA.

6. Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea.

7. Materials Department, University of California–Santa Barbara, Santa Barbara, CA 93106-5050, USA.

8. Department of Physics, Boise State University, Boise, ID 83725-1570, USA.

Abstract

Thinning films induces ferroelectricity 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. Science , this issue p. 1314

Funder

National Science Foundation (NSF)

NSF

National Science Foundation

National Research Foundation of Korea

National Research Foundation (NRF) of Korea

Designing Materials to Revolutionize and Engineer our Future (DMREF)

Materials Research Science and Engineering Center (MRSEC)

NSF-MRSEC Center for Nanoscale Science

U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences

National Energy Research Scientific Computing Center (NERSC)

DOE Office of Science