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 - 2008 |
| Externally published | Yes |
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Keywords
- Layered ferroelectrics
- Nano-particles
- Soft mode
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Ceramics and Composites
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Condensed Matter Physics
- Control and Systems Engineering
Cite this
Physical properties of ferroelectric BI4-xLaxTI 3O12 nano-particles synthesized by the chemical co-precipitation method. / Islam, M. S.; Kano, Jun; Shikanai, F.; Kojima, S.
In: Integrated Ferroelectrics, Vol. 100, No. 1, 2008, p. 146-155.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Physical properties of ferroelectric BI4-xLaxTI 3O12 nano-particles synthesized by the chemical co-precipitation method
AU - Islam, M. S.
AU - Kano, Jun
AU - Shikanai, F.
AU - Kojima, S.
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
KW - Layered ferroelectrics
KW - Nano-particles
KW - Soft mode
UR - http://www.scopus.com/inward/record.url?scp=77951450359&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951450359&partnerID=8YFLogxK
U2 - 10.1080/10584580802540942
DO - 10.1080/10584580802540942
M3 - Article
VL - 100
SP - 146
EP - 155
JO - Integrated Ferroelectrics
JF - Integrated Ferroelectrics
SN - 1058-4587
IS - 1
ER -