期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 103, 期 10, 页码 5700-5705出版社
WILEY
DOI: 10.1111/jace.17291
关键词
barium titanate; crystals; crystallization; films; sol-gel; strontium titanate
资金
- National Science Foundation [DGE-1610403]
- Air Force Office of Scientific Research [FA9550-18-1-0053]
- National Research Foundation of Korea [2018K1A4A3A01064272, 2019H1D3A2A01061938]
- National Research Foundation of Korea [2019H1D3A2A01061938, 2018K1A4A3A01064272] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Chemical solution deposition was used to deposit epitaxial Ba(x)Sr((1-)(x)())TiO(3)thin films on SrTiO(3)template layers on Si(001) forx = 1.0, 0.7, 0.5, 0.3, and 0.0. Effective Pockels coefficients were determined as a function of film composition both for as-deposited films (crystallized at 600 degrees C) and for the films after annealing at 750 degrees C for 10 hours. Pockels response decreased monotonically with decreasing Ba content and coefficients were higher for annealed films, reaching 89 +/- 3 pm/V for annealed BaTiO3. These results are contextualized with the aid of X-ray diffraction and high-resolution transmission microscopy, which illuminated the crystallinity and defect nature of the films.
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