Effects of lanthanum content on the thermo-optical properties of (Pb,La)(Zr,Ti) O-3

Autor(es)

Falcao, E. A. ^{[1, 2]} ; Eiras, J. A. ^[3] ; Garcia, D. ^[3] ; Santos, I. A. ^[4] ; Medina, A. N. ^[4] ; Baesso, M. L. ^[4] ; Catunda, T. ^[5] ; Guo, R. ^[2] ; Bhalla, A. S. ^[2]

Afiliação do(s) autor(es)

^[1] Fundacao Univ Fed Grande Dourados, Fac Ciencias Exatas & Tecnol, Rodovia Dourados Itahum, Dourados, MS - Brazil

^[2] Univ Texas San Antonio, Dept Elect & Comp Engn, San Antonio, TX - USA

^[3] Univ Fed Sao Carlos, Dept Fis, BR-13560 Sao Carlos, SP - Brazil

^[4] Univ Estadual Maringa, Dept Fis, Maringa, Parana - Brazil

^[5] Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Ferroelectrics; v. 494, n. 1, p. 33-42, APR 8 2016.
• Citações Web of Science: 1

Resumo

In this work the thermal lens spectrometry, the optical interferometry and the thermal relaxation calorimetry were employed to determine the thermo-optical properties of transparent ferroelectric ceramic (Pb,La)(Zr,Ti)O-3 or PLZT, as a function of lanthanum concentration. The use of three independent techniques allowed the characterization of several thermo-optical parameters of the studied PLZT system. Parameters such as thermal diffusivity, thermal conductivity, optical path length change and temperature coefficient of the refractive index were determined. In addition, the results showed that the thermo-optical properties were significantly modified with the lanthanum concentration, these informations are important for the use of the PLZT system as host of active ions for laser generation. (AU)

• Processo FAPESP: 07/50603-2 - Estudo e caracterização das propriedades ópticas e térmicas de materiais ferroelétricos com estrutura perovskita em função da temperatura e de um campo elétrico externo aplicado
• Beneficiário: Evaristo Alexandre Falcao
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado