Abstract
Bi4-xLAxTI3O12 (BLT) nano-particles have been synthesised by the chemical co-precipitation method utilizing a polymeric precursor. The particle size decreases from 100 to 40 nm with the increase of La content (x = 0 ∼ 1) owing to the increase of a reaction temperature. The axial ratio a/b of BLT decreases with the increase of La content reflects a relaxation of structural distortion from its ideal tetragonal structure. A monoclinic to orthorhombic transition occurs at La > 0.75. The existence of the soft mode in Raman spectra above x = 0.75 demonstrates a displacive nature of orthorhombic to tetragonal phase transition. No noticeable size effect on physical properties is observed.
| Original language | English |
|---|---|
| Pages (from-to) | 146-155 |
| Number of pages | 10 |
| Journal | Integrated Ferroelectrics |
| Volume | 100 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Dec 1 2008 |
| Externally published | Yes |
Keywords
- Layered ferroelectrics
- Nano-particles
- Soft mode
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Control and Systems Engineering
- Ceramics and Composites
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry
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Cite this
Islam, M. S., Kano, J., Shikanai, F., & Kojima, S. (2008). Physical properties of ferroelectric BI4-xLaxTI 3O12 nano-particles synthesized by the chemical co-precipitation method. Integrated Ferroelectrics, 100(1), 146-155. https://doi.org/10.1080/10584580802540942