A new phase transition in sodium niobate

被引：28

作者：

Raevskii, IP ^{[1
]}

Reznichenko, LA ^{[1
]}

Smotrakov, VG ^{[1
]}

Eremkin, VV ^{[1
]}

Malitskaya, MA ^{[1
]}

Kuznetsova, EM ^{[1
]}

Shilkina, LA ^{[1
]}

机构：

[1] Rostov State Univ, Phys Res Inst, Rostov On Don 344090, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2000年 / 26卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1307831

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The temperature dependences of the dielectric constant epsilon of sodium niobate single crystals NaNbO3 and sodium niobate-based (Na,Li)NbO3 and (Na,K)NbO3 solid solutions with low content of the second component have been studied. A weak anomaly observed in epsilon(T) indicates a new phase transition in the vicinity of 150 degrees C in NaNbO3 . The introduction of lithium or potassium into NaNbO3 crystals increases the temperature of this transition. The X-ray powder diffraction data suggest that the new transition takes place between two rhombohedral phases. (C) 2000 MAIK "Nauka/Interperiodica".

引用

页码：744 / 746

页数：3

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