ULTRASONIC STUDY ON THE TETRAGONAL AND MULLER PHASE IN SrTiO3

被引：12

作者：

Balashova, E. V. ^{[1
]}

Lemanov, V. V. ^{[1
]}

Kunze, R. ^{[2
]}

Martin, G. ^{[2
]}

Weihnacht, M. ^{[2
]}

机构：

[1] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[2] Inst Festkorper & Werkstofforsch, Dresden, Germany

来源：

FERROELECTRICS | 1996年 / 183卷

关键词：

D O I：

10.1080/00150199608224093

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The results of an ultrasonic study of SrTiO(3) in the temperature range from 20 to 120K using an electrostrictive interdigital transducer for longitudinal waves and e piezoelectric transducer for shear waves have been presented. A thermally activated relaxation loss mechanism due to strain-induced domain wall motion has been observed in the tetragonal phase of SrTiO(3). Below 40K anomalies in the velocity and attenuation have been found for both longitudinal and shear waves. The decrease of the velocity has been connected with the anomalous temperature behavior of the elastic constant c(44) and peaks of the attenuation could be explained by fluctuations.

引用

页码：75 / 83

页数：9

共 12 条

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