Amorphization and grain size effect on milled PbTiO3 studied by Raman scattering and visible photoluminescence emission

被引：14

作者：

Lanciotti, F

Pizani, PS

Campos, CEM

Leite, ER

Santos, LPS

Carreño, NLV

Longo, E

机构：

[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Fed Sao Carlos, Dept Quim, LIEC, CMDMC, BR-13565905 Sao Carlos, SP, Brazil

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2002年 / 74卷 / 06期

关键词：

D O I：

10.1007/s003390100969

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Raman scattering and photoluminescence (PL) studies on milled PbTiO3 are presented in this paper. The results suggest that the visible PL emission could be related to both the localized states in the interface between the amorphous layer and the crystalline core and the amorphous layer itself. The Raman spectrum of PbTiO3 milled for a long time showed the vibrational density of states, and a detailed analysis of the soft mode allowed us to conclude that the PbTiO3 crystalline core did not experience any structural phase transition.

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页码：787 / 789

页数：3

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