Estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos

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...

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Autores Principales: Valbuena-Niño, Ely Dannier, Rincón-Joya, Miryam, Barba-Ortega, José José
Formato: Artículo (Article)
Lenguaje:Español (Spanish)
Publicado: Universidad Santo Tomás. Seccional Bucaramanga 2017
Materias:
id ir-11634-10967
recordtype dspace
institution Universidad Santo Tomas
collection DSpace
language Español (Spanish)
topic Raman spectroscopy; Ferroelectric material; Optical methods
Espectroscopía Raman; Material Ferroeléctrico; Métodos Ópticos
spellingShingle Raman spectroscopy; Ferroelectric material; Optical methods
Espectroscopía Raman; Material Ferroeléctrico; Métodos Ópticos
Valbuena-Niño, Ely Dannier
Rincón-Joya, Miryam
Barba-Ortega, José José
Estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos
description 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.
format Artículo (Article)
author Valbuena-Niño, Ely Dannier
Rincón-Joya, Miryam
Barba-Ortega, José José
author_facet Valbuena-Niño, Ely Dannier
Rincón-Joya, Miryam
Barba-Ortega, José José
author_sort Valbuena-Niño, Ely Dannier
title Estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos
title_short Estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos
title_full Estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos
title_fullStr Estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos
title_full_unstemmed Estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos
title_sort estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos
publisher Universidad Santo Tomás. Seccional Bucaramanga
publishDate 2017
_version_ 1712106060638060544
spelling ir-11634-109672019-11-14T21:32:46Z Estudio de las modificaciones estructurales en un material ferroeléctrico por medio de dos métodos ópticos Study of structural modifications in a ferroelectric material by means of two optical methods Valbuena-Niño, Ely Dannier Rincón-Joya, Miryam Barba-Ortega, José José Raman spectroscopy; Ferroelectric material; Optical methods Espectroscopía Raman; Material Ferroeléctrico; Métodos Ópticos 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. Las intensidades de las líneas Raman del cerámico complejo (titanato de plomo) se han investigado como una función de la relación de las áreas de los modos Raman de baja frecuencia E (1TO) y silenciosos. Un cambio de fase tetragonal dentro del material cúbico fue observado por espectroscopía Raman. Las muestras fueron sometidas a las mismas condiciones en el momento de realizar las mediciones de Raman. Los espectros UV-vis de absorción sugirieron un cambio en los niveles de energía al aumentar la concentración del elemento de lantano (La). La intención de este estudio es observar cambios estructurales en el material mediante intensidades Raman sin utilizar la posición central tradicional del ancho máximo en las bandas. 2017-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://revistas.ustabuca.edu.co/index.php/ITECKNE/article/view/1764 10.15332/iteckne.v14i2.1764 spa http://revistas.ustabuca.edu.co/index.php/ITECKNE/article/view/1764/1352 /*ref*/E. C. Paris, “Estudo da Influência do Sm e Er em Cerâmicas de PbTiO3”, Tese, Brasil: UFSCar, 2005. /*ref*/M. A. Mukherjee, S. R. Brueck and A. Y. Wu, “Electro-optic effects in thin-film lanthanum-doped lead zirconate titanate”, Opt Lett, vol. 15, p. 151, 1990. /*ref*/B. Xu, N. G. Pai and L. E. Cross, “Lanthanum doped lead zirconate titanate stannate antiferroelectric thin films from acetic acid-based sol–gel method”, Mater Lett, vol. 34, p. 157, 1998. /*ref*/T. Leist, J. Brotz, Y. H. Seo, S. Cheng and K. G. 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Pizani, “High-temperature, high-pressure Raman spectra and their intrinsic anharmonic effects in the perovskite Pb1-xLax-TiO3”, J Appl Phys, vol. 113, p. 3512, 2013. /*ref*/M. R. Joya, “Efeitos anarmônicos e transições de fase em Pb1_xLaxTiO3: estudo por espalhamento Raman dos efeitos de substituição catiônica, temperatura e pressão hidrostática”, Tese Brasil: UFSCar, 2008. /*ref*/N. L. V. Carreño, J. H. G. Rangel, C. D. Pinheiro, J. H. G. Rangel, E. Longo, E. R. Leite, J. A. Varela and P. S. Pisani, “Effect of the Structures on the Optical Properties of (PbLa)TiO3 Thin Films”, Bulg J Phys, vol. 30, p. 131, 2003. /*ref*/D. S. Lemono, and C. M. Lund, “Thermodynamics of High Temperature Mie-Grüneisen Solids”, Am J Phys, vol. 67, p. 1105, 1999. Copyright (c) 2018 ITECKNE application/pdf Universidad Santo Tomás. Seccional Bucaramanga ITECKNE; Vol 14, No 2 (2017); 105-109 2339-3483 1692-1798 ITECKNE; Vol 14, No 2 (2017); 105-109
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