Press Release 2010
Novel Tailor-Made Nanoferroelectric From Building Blocks
A novel nanoferroelectric, an artificial superlattice assembled from perovskite nanosheets, was successfully developed by a solution-based bottom-up nanotechnology.
Fig. 1. An artificial superlattice assembled from perovskite nanosheets (A=Ca2Nb3O10, B=LaNb2O7). The success of growth of such well-controlled superlattices with a good interface quality enabled us to explore new properties of perovskite superlattices. By artificial structuring, the group found that the (LaNb2O7/Ca2Nb3O10) superlattice possesses a new form of interface coupling, which gives rise to ferroelectricity even at several nanometer thicknesses.
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Affiliations
Bao-Wen Li1, Minoru Osada1,2, Tadashi C. Ozawa1,2, Yasuo Ebina1,2, Kosho Akatsuka1,2, Renzhi Ma1,2, Hiroshi Funakubo3, Takayoshi Sasaki1,2
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science
- CREST, Japan Science and Technology Agency
- Department of Innovative and Engineered Materials, Tokyo Institute of Technology