Raman and IR phonons in ferroelectric Sr0.35Ba0.69Nb2O6.04 single crystals

被引：22

作者：

Buixaderas, Elena ^{[1
]}

Gregora, Ivan ^{[1
]}

Hlinka, Jiri ^{[1
]}

Dec, Jan ^{[2
]}

Lukasiewicz, Tadeusz ^{[3
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 18221, Czech Republic

[2] Univ Silesia, Inst Mat Sci, PL-40007 Katowice, Poland

[3] Inst Elect Mat Technol, PL-01919 Warsaw, Poland

来源：

PHASE TRANSITIONS | 2013年 / 86卷 / 2-3期

关键词：

ferroelectrics; relaxors; dielectric spectroscopy; IR spectroscopy; THz spectroscopy; BAND DIELECTRIC-SPECTROSCOPY; NIOBATE; SRXBA1-XNB2O6; TEMPERATURE; DEPENDENCE; SCATTERING; SPECTRA;

D O I：

10.1080/01411594.2012.715296

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

IR and Raman spectra of strontium barium niobate (SBN) with 35% of Sr were measured in a broad interval of temperatures (20800?K). Anomalies in the frequencies and intensities of some IR and Raman active phonons were observed. These modes are presumably related to Sr and NbO vibrations. This brings evidence that, apart from the orderdisorder nature of the ferroelectric phase transition in SBN, there could be some ferroelectricity induced by cation displacements in the low Sr content samples.

引用

页码：217 / 229

页数：13

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