The dynamics of domain walls determined from acoustic emission measurements / Lupascu D.C., Utschig T., Shur V.Ya., Shur A.G. // Ferroelectrics. - 2003. - V. 290, l. . - P. 207-215.

ISSN:

00150193

Type:

Conference Paper

Abstract:

The field-induced jump-like dynamics of a single planar domain wall in single crystalline uniaxial ferroelectric-ferroelastic Gd 2 (MoO 4 ) 3 and needle domains in the perovskite BaTiO 3 are compared. Acoustic emission as well as ferroelectric Barkhausen pulse measurements were performed in order to investigate time coincidences with optically observed jumps. In both crystals significant amounts of acoustic emissions occur. The coincidences of both event types in Gd 2 (MoO 4 ) 3 are determined by the particular character of extended defects in the crystal and the relative orientation of the acoustic sensor. Hardly any Barkhausen pulses but huge amounts of acoustic pulses are observed for the annihilation of needle domains. The underlying microscopic mechanisms are discussed.

Author keywords:

Acoustic emissions; BaTiO3; Ferroelectric Barkhausen pulses; Ferroelectrics; Gd2(MoO4) 3

Index keywords:

Acoustic emissions; Acoustic variables measurement; Crystal defects; Crystal orientation; Sensors; Single crystals; BaTiO3; Ferroelectric Barkhausen pulses; Gd2(MoO4)3; Needle domains; Ferroelectric m

DOI:

10.1080/00150190390222475

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-25644434723&doi=10.1080%2f00150190390222475&partnerID=40&md5=facdcf2674af01d4b431ad87f5615b49

Соавторы в МНС:

Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-25644434723&doi=10.1080%2f00150190390222475&partnerID=40&md5=facdcf2674af01d4b431ad87f5615b49
Affiliations	Institute of Materials Science, Darmstadt University of Technology, Petersenstr. 23, 64287 Darmstadt, Germany; Institute of Physics and Applied Mathematics, Ural State University, Lenin Ave. 51, 620083 Ekaterinburg, Russian Federation
Author Keywords	Acoustic emissions; BaTiO3; Ferroelectric Barkhausen pulses; Ferroelectrics; Gd2(MoO4) 3
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Correspondence Address	Lupascu, D.C.; Institute of Materials Science, Darmstadt University of Technology, Petersenstr. 23, 64287 Darmstadt, Germany; email: lupascu@ceramics.tu-darmstadt.de
CODEN	FEROA
Language of Original Document	English
Abbreviated Source Title	Ferroelectrics
Source	Scopus