Dielectric dispersion and vibrational studies of a new ferroelectric, glycinium phosphite crystal

被引：68

作者：

Baran, J ^{[1
]}

Bator, G ^{[1
]}

Jakubas, R ^{[1
]}

Sledz, M ^{[1
]}

机构：

[1] WROCLAW B BEIRUT UNIV,INST CHEM,PL-50383 WROCLAW,POLAND

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1996年 / 8卷 / 49期

关键词：

D O I：

10.1088/0953-8984/8/49/049

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The dielectric dispersion in glycine phosphite crystal over the frequency range 30-1000 MHz is presented. Ferroelectric dispersion of the Debye type along the b-axis occurs in the microwave-frequency region and is caused by a single relaxational soft mode. The powder IR (at low temperatures between 300 and 14 K) and FT Raman spectra in the region between 4000 and 80 cm(-1) are measured. DSC measurements for the GPI and deuterated crystals are performed. The results confirm the order-disorder nature of a proper ferroelectric phase transition of second order.

引用

页码：10647 / 10658

页数：12

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