STUDY OF STRUCTURAL MODIFICATIONS IN A FERROELECTRIC MATERIAL BY MEANS OF TWO OPTICAL METHODS

Abstract The intensities of the Raman lines of the ceramic complex (lead titanate) have been investigated as a function of the relation of the areas of the low Raman frequency modes E(1TO) and silent. A change of tetragonal phase into cubic material was observed by Raman spectrjky. The samples were...

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Bibliographic Details
Published inIteckne Vol. 14; no. 2; pp. 105 - 109
Main Authors Valbuena-Niño, Ely Dannier, Rincón-Joya, Miryam, Barba-Ortega, José José
Format Journal Article
LanguagePortuguese
English
Published Universidad Santo Tomás 01.12.2017
Subjects
ENGINEERING, MULTIDISCIPLINARY
Espectroscopía Raman
Ferroelectric material
Material Ferroeléctrico
Métodos Ópticos
Optical methods
Raman spectroscopy
métodos ópticos
Raman spectroscopy
Ferroelectric material
Optical methods
material ferroeléctrico
Espectroscopía Raman
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Summary:Abstract The intensities of the Raman lines of the ceramic complex (lead titanate) have been investigated as a function of the relation of the areas of the low Raman frequency modes E(1TO) and silent. A change of tetragonal phase into cubic material was observed by Raman spectrjky. The samples were subjected to the same conditions at the time of making the Raman measurements. The UV-vis spectra of absorption suggested a change in energy levels with increasing concentration of lanthanum element (La). This study’s intention is to observe structural changes in the material by means of Raman intensities without using the traditional central position of the peak width in the bands.
ISSN:1692-1798
2339-3483
2339-3483
DOI:10.15332/iteckne.v14i2.1764