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Optical interband transitions in [111] poled relaxor-based ferroelectric 0.24Pb(In1/2Nb1/2)O3-(0.76 - x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 single crystal.
Wu, Fengmin; Yang, Bin; Sun, Enwei; Wang, Zhu; Yin, Yongqi; Pei, Yanbo; Yang, Wenlong; Cao, Wenwu.
Afiliação
  • Wu F; Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
  • Yang B; Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
  • Sun E; Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
  • Wang Z; Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
  • Yin Y; Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
  • Pei Y; Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
  • Yang W; Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
  • Cao W; Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
J Mater Sci Mater Med ; 47(6): 2818-2822, 2012 Mar.
Article em En | MEDLINE | ID: mdl-25170190
ABSTRACT
Optical transmission spectra of single crystal 0.24Pb(In1/2Nb1/2)O3-(0.76 - x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (x = 0.27, 0.33) were measured in the pseudo-cubic crystallographic directions [111] and [112̄]. Ferroelectric domain structures were observed in order to explain the difference of transmittance for the two composition crystals. Wavelength dependence of the absorption coefficients was measured and the optical energy band gaps were calculated for both direct and indirect transitions, which are Egd = 3.09-3.18 eV and Egi = 2.89-2.96 eV, respectively, and the phonon energy is Ep = 0.07-0.08 eV. The transmission spectra were explained by the refractive indices and extinction coefficients measured by spectroscopic ellipsometry.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: J Mater Sci Mater Med Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2012 Tipo de documento: Article País de afiliação: China
Texto completo
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XML
PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: J Mater Sci Mater Med Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2012 Tipo de documento: Article País de afiliação: China