Elastic instability of the nano-structured state as an intrinsic probe to study the early formation stages of sol–gel derived (Pb1-xCax)TiO3 thin films
作者： I. Bretos , J. Ricote , R.J. Jiménez-Riobóo , L. Pardo , M.L. Calzada
DOI: 10.1007/S00339-007-4179-2
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摘要: A novel method to investigate the early formation stages of polycrystalline (Pb1-xCax)TiO3 (PCT) perovskite films by means traditional Brillouin and micro-Brillouin spectroscopy (BS, mBS) is described in present work. The were prepared chemical solution deposition (CSD) onto oxidized (100)Si substrates treated at temperatures between 350–650 °C rapid thermal processing (RTP). elastic instability observed nano-structured state PCT was used here determine their crystallization temperatures. Coexistence different nanocrystalline phases (e.g., pyrochlore, perovskite) could also be detected this technique. reliability these results demonstrated complementary information obtained X-ray diffraction (XRD) scanning force microscopy (SFM). effects annealing temperature Ca2+ content on process are discussed.
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