| Literature DB >> 16859982 |
R Y Sato-Berrú1, E V Mejía-Uriarte, C Frausto-Reyes, M Villagrán-Muniz, H Murrieta S, J M Saniger.
Abstract
The principal component analysis (PCA) was applied to Raman spectra of polycrystalline BaTiO(3) under pressure from atmospheric pressure to approximately 6.72 GPa. For the system utilized, PCA was able to distinguish spectral features and to determine the phase transition pressure: tetragonal to cubic at approximately 2.0 GPa. The present study demonstrates the potentialities of the application of PCA to the investigation on phase transitions at high pressure by Raman spectroscopy.Mesh：
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Year: 2006 PMID： 16859982 DOI： 10.1016/j.saa.2006.03.032
Source DB: PubMed Journal: Spectrochim Acta A Mol Biomol Spectrosc ISSN： 1386-1425 Impact factor: 4.098