Ge, Wanyin; Zhu, Wenliang; Deluca, Marco; Wan, Keshu; Yi, Zhiguo; Li, Yongxiang; Pezzotti, Giuseppe
The piezospectroscopic (PS) effect was studied in an intergrowth bismuth layer-structure ferroelectricceramicBi₅TiNbWO₁₅ according to a micro-Raman spectroscopic evaluation. By using a ball-on-ring flexure configuration, a biaxial stress was generated in a Bi₅TiNbWO₁₅ plate-like specimen and in situ collected Raman spectra were acquired and analyzed under several loading conditions. As the observed spectral line contained signals arising from the whole illuminated in-depth region, the laser...[Show more]
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