Dipole-Dipole Interaction Model for Oriented Aggregation of BaTiO3 Nanocrystals
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ABSTRACTIn 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.
2013 ◽
Vol 582
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pp. 145-148
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1969 ◽
Vol 4
(2)
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pp. 241-242
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1968 ◽
Vol 95
(7)
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pp. 470-476
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2005 ◽
Vol 175
(9)
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pp. 979
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