Structure of sol-gel prepared ferroelectric Bi3.4La0.6Ti3O12
- Authors
- Kim, Sang Su; Chung, Jun-Ki; Park, Mun Heum; Kim, Jong Kuk; Kim, Jae-Yong; Kim, Won-Jeong
- Issue Date
- Dec-2006
- Publisher
- SPRINGER
- Citation
- JOURNAL OF ELECTROCERAMICS, v.17, no.2-4, pp.151 - 155
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ELECTROCERAMICS
- Volume
- 17
- Number
- 2-4
- Start Page
- 151
- End Page
- 155
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/180693
- DOI
- 10.1007/s10832-006-5652-6
- ISSN
- 1385-3449
- Abstract
- The Bi3.4La0.6Ti3O12 (BLT) thin film and powder have been prepared by a sol-gel method with annealing at 700 degrees C. Randomly oriented BLT thin film exhibits a large remanent polarization, 2P(r) = 72 mu C/cm(2), 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 angstrom, b = 5.4032 angstrom, and c = 32.8361 angstrom). Two different TiO6 octahedra exhibit different polarization directions; (100) from Ti(1)O-6, and (011) from Ti(2)O-6, which explains the observed large 2P(r) of the randomly oriented BLT thin film.
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