The dynamics of domain walls determined from acoustic emission measurements / Lupascu DC,Utschig T,Shur VY,Shur AG // FERROELECTRICS. - 2003. - V. 290, l. . - P. 207-215.

ISSN/EISSN:

0015-0193 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The field-induced jump-like dynamics of a single planar domain wall in single crystalline uniaxial ferroelectric-ferroelastic Gd-2(MoO4)(3) and needle domains in the perovskite BaTiO3 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 (MoO4)(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:

ferroelectrics; BaTiO3; Gd-2(MoO4)(3); acoustic emissions; ferroelectric Barkhausen pulses POLARIZATION REVERSAL; BARKHAUSEN JUMPS; GADOLINIUM; MOLYBDATES; CERAMICS; TITANATE; CRYSTAL; MOTION

DOI:

10.1080/00150190390222475

Web of Science ID:

ISI:000185296000026

Соавторы в МНС:

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Другие поля

Поле	Значение
Note	7th International Symposium on Ferroic Domains and Mesosxopic Structures (ISFD7), GIENS, FRANCE, SEP, 2002
Publisher	TAYLOR \& FRANCIS LTD
Address	4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
Language	English
Keywords-Plus	POLARIZATION REVERSAL; BARKHAUSEN JUMPS; GADOLINIUM; MOLYBDATES; CERAMICS; TITANATE; CRYSTAL; MOTION
Research-Areas	Materials Science; Physics
Web-of-Science-Categories	Materials Science, Multidisciplinary; Physics, Condensed Matter
ResearcherID-Numbers	Shur, Vladimir/J-9078-2015
ORCID-Numbers	Lupascu, Doru C/0000-0002-6895-1334
Number-of-Cited-References	26
Usage-Count-Since-2013	3
Journal-ISO	Ferroelectrics
Doc-Delivery-Number	721AZ