Study of structural modifications in a ferroelectric material by means of two optical methods
Keywords:
Raman spectroscopy, Ferroelectric material, 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 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.
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References
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T. Leist, J. Brotz, Y. H. Seo, S. Cheng and K. G. Webber, “Crack growth resistance behavior of lanthanum doped bismuth ferrite–lead titanate: Effect of tetragonality and mixed phase crystal structures”, Eng Fract Mech, vol. 96, p. 267, 2012.
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J. B. Rodríguez, P. J. Rodríguez, G. K. Cruz, M. H. Lente and J. A. Eiras, “Preparation and characterization of PbTi03 ceramics modified by a natural mixture of rare earth oxides of xenotime”, Mat Res, vol. 17, p. 1, 2014.
M. D. Halls and H. B. Schlegel, “Comparison study of the prediction of Raman intensities using electronic structure methods”, J Chem Phys, vol. 111, p. 8819, 1999.
H. Yurtseven and S. Aslan, “Temperature Dependence of the Raman Intensity and the Bandwidth Close to the Order-Disorder Phase Transition in NaNO3”, Opt Phot J, vol. 2, p. 249, 2012.
K. Venkateswarlu, “Temperature Dependence of the Intensities of Raman Lines”, Nat, vol. 159, p. 96, 1947.
P. Colomban and A. Slodczyk, “Raman Intensity: An Important Tool in the Study οf Nanomaterials and Nanostructures”, Act Phys Polo A, vol. 116, p. 7, 2009.
M. V. P. Jarman, P. J. Hendra and R. J. Lehnert, “The dependence of Raman signal intensity on particle size for crystal powders”, Vib. Spectrosc, vol. 12, p. 257, 1996.
P. Atkins, J. Paula and R. Friedman, “Quanta, Matter and Change Oxford”, New York: University Press, 2009.
C. S. S. R. Kumar, “Raman Spectroscopy for Nanomaterials Characterization”, New York: Springer, 2012.
M. R. Joya and P. S. Pizani, “Pressure-temperature-La concentration three-dimensional phase diagram of La-modified PbTiO3 determined by Raman scattering”, Appl Phys Lett, vol. 97, p. 031903, 2010.
M. R. Joya, J. Barba-Ortega and P. S. 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.
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.
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.
D. S. Lemono, and C. M. Lund, “Thermodynamics of High Temperature Mie-Grüneisen Solids”, Am J Phys, vol. 67, p. 1105, 1999.
How to Cite
Valbuena-Niño, E., Rincón-Joya, M., & Barba-Ortega, J. (1). Study of structural modifications in a ferroelectric material by means of two optical methods. ITECKNE, 14(2), 105-109. https://doi.org/https://doi.org/10.15332/iteckne.v14i2.1764
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