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Dipole-Dipole Interaction Model for Oriented Aggregation of BaTiO3 Nanocrystals

Published online by Cambridge University Press:  13 March 2014

Kyuichi Yasui  and
Kazumi Kato
Kyuichi Yasui
Affiliation:
National Institute of Advanced Industrial Science and Technology (AIST) 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan
Kazumi Kato
Affiliation:
National Institute of Advanced Industrial Science and Technology (AIST) 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan
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Abstract

In order to study the oriented aggregation of BaTiO3nanocrystals in the ultrasound-assisted synthesis in an aqueous solution [F.Dang et al., Jpn.J.Appl.Phys. 48, 09KC02 (2009)], the electric dipole-dipole interaction model has been studied by numerical simulations. The results of the numerical simulations are consistent with the experimental ones if the electric dipole moment of a primary particle (a nanocrystal) of 5 nm in diameter is about 10 D =3.3 x 10-29 (C m). It suggests that a 5-10 nm BaTiO3 nanocrystal synthesized in an aqueous solution with ultrasound has spontaneous polarization.

Keywords

self-assemblysimulationferroelectric

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Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1663: Symposium WW – Self-Organization and Nanoscale Pattern Formation , 2014 , mrsf13-1663-ww01-07
Copyright
Copyright © Materials Research Society 2014 

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References

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