Structure of sol-gel prepared ferroelectric Bi3.4La 0.6Ti3O12

Sang Su Kim, Jun Ki Chung, Mun Heum Park, Jong Kuk Kim, Jae Yong Kim, Won Jeong Kim

Research output: Contribution to journalArticle

Abstract

The Bi3.4La0.6Ti3O12 (BLT) thin film and powder have been prepared by a sol-gel method with annealing at 700°C. Randomly oriented BLT thin film exhibits a large remanent polarization, 2P r = 72 μC/cm2, with a dc applied field strength of 320 kV/cm. Structure of sol-gel derived BLT powder has been investigated by neutron scatterings, and refined by a Rietveld method resulting a reasonable goodness of fit (wR p = 6.7%, and R p = 5.7%) using an orthorhombic (B2cb, a = 5.4221 Å, b = 5.4032 Å, and c = 32.8361 Å). Two different TiO6 octahedra exhibit different polarization directions; (100) from Ti(1)O6, and (011) from Ti(2)O6, which explains the observed large 2P r of the randomly oriented BLT thin film.

Original languageEnglish
Pages (from-to)151-155
Number of pages5
JournalJournal of Electroceramics
Volume17
Issue number2-4
DOIs
StatePublished - 2006 Dec 1

Fingerprint

Ferroelectric materials
Sol-gels
gels
Thin films
Powders
thin films
Rietveld method
goodness of fit
Remanence
polarization
Neutron scattering
Sol-gel process
field strength
neutron scattering
Annealing
Polarization
annealing
Direction compound

Cite this

Kim, S. S., Chung, J. K., Park, M. H., Kim, J. K., Kim, J. Y., & Kim, W. J. (2006). Structure of sol-gel prepared ferroelectric Bi3.4La 0.6Ti3O12. Journal of Electroceramics, 17(2-4), 151-155. https://doi.org/10.1007/s10832-006-5652-6
Kim, Sang Su ; Chung, Jun Ki ; Park, Mun Heum ; Kim, Jong Kuk ; Kim, Jae Yong ; Kim, Won Jeong. / Structure of sol-gel prepared ferroelectric Bi3.4La 0.6Ti3O12. In: Journal of Electroceramics. 2006 ; Vol. 17, No. 2-4. pp. 151-155.
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abstract = "The Bi3.4La0.6Ti3O12 (BLT) thin film and powder have been prepared by a sol-gel method with annealing at 700°C. Randomly oriented BLT thin film exhibits a large remanent polarization, 2P r = 72 μC/cm2, with a dc applied field strength of 320 kV/cm. Structure of sol-gel derived BLT powder has been investigated by neutron scatterings, and refined by a Rietveld method resulting a reasonable goodness of fit (wR p = 6.7{\%}, and R p = 5.7{\%}) using an orthorhombic (B2cb, a = 5.4221 {\AA}, b = 5.4032 {\AA}, and c = 32.8361 {\AA}). Two different TiO6 octahedra exhibit different polarization directions; (100) from Ti(1)O6, and (011) from Ti(2)O6, which explains the observed large 2P r of the randomly oriented BLT thin film.",
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Structure of sol-gel prepared ferroelectric Bi3.4La 0.6Ti3O12. / Kim, Sang Su; Chung, Jun Ki; Park, Mun Heum; Kim, Jong Kuk; Kim, Jae Yong; Kim, Won Jeong.

In: Journal of Electroceramics, Vol. 17, No. 2-4, 01.12.2006, p. 151-155.

Research output: Contribution to journalArticle

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AU - Kim, Won Jeong

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AB - The Bi3.4La0.6Ti3O12 (BLT) thin film and powder have been prepared by a sol-gel method with annealing at 700°C. Randomly oriented BLT thin film exhibits a large remanent polarization, 2P r = 72 μC/cm2, with a dc applied field strength of 320 kV/cm. Structure of sol-gel derived BLT powder has been investigated by neutron scatterings, and refined by a Rietveld method resulting a reasonable goodness of fit (wR p = 6.7%, and R p = 5.7%) using an orthorhombic (B2cb, a = 5.4221 Å, b = 5.4032 Å, and c = 32.8361 Å). Two different TiO6 octahedra exhibit different polarization directions; (100) from Ti(1)O6, and (011) from Ti(2)O6, which explains the observed large 2P r of the randomly oriented BLT thin film.

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