Abstract
The finite size effect on the phase transition in PbTiO3 fine particles is described. Very small crystals with an average diameter of 14.2 nm were obtained by lowering the calcination temperature to 400° C. Raman scattering measurements of such fine particles were carried out to study the dependence of the phase transition temperature on the particle size. The X-ray diffraction pattern was also measured to study the tetragonality, c/a ratio. The results strongly suggest the presence of a critical size below which the ferroelectric state becomes unstable. The critical size determined by Raman measurements was 10.7 nm.
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Dates
Type | When |
---|---|
Created | 22 years, 10 months ago (Oct. 1, 2002, 5:03 p.m.) |
Deposited | 2 years, 8 months ago (Dec. 7, 2022, 1:19 p.m.) |
Indexed | 1 month, 4 weeks ago (June 26, 2025, 6:45 a.m.) |
Issued | 28 years, 11 months ago (Sept. 1, 1996) |
Published | 28 years, 11 months ago (Sept. 1, 1996) |
Published Print | 28 years, 11 months ago (Sept. 1, 1996) |
@article{Ishikawa_1996, title={Size Effect on the Phase Transition in PbTiO3 Fine Particles}, volume={35}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.35.5196}, DOI={10.1143/jjap.35.5196}, number={9S}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Ishikawa, Kenji and Nomura, Takashi and Nagaya Okada, Nagaya Okada and Kazumasa Takada, Kazumasa Takada}, year={1996}, month=sep, pages={5196} }