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Acoustic emission mechanism at switching of ferroelectric crystals

Journal Article:

Abstract

Process of acoustic emission (AE) in lead germanate (PGO) representing pure ferroelectric, and gadolinium molybdate (GMO) representing ferroelectric-ferroelastic, for which switching may be conducted both by the field and pressure, were studied. A conclusion has been drawn that piezoelectric excitation of a crystal from the surface by pulses of overpolarization current in the process of domain coalescence is the main AE source in PGO. Not only piezoresponse, but also direct sound generation in the moment of domain penetration and collapse is considered as AE mechanism in GMO.
Publication Date:
Jan 01, 1986
Product Type:
Journal Article
Reference Number:
AIX-17-070603; EDB-86-192802
Resource Relation:
Journal Name: Fiz. Tverd. Tela (Leningrad); (USSR); Journal Volume: 28:1; Other Information: For English translation see the journal Soviet Physics - Solid State (USA)
Subject:
36 MATERIALS SCIENCE; GADOLINIUM COMPOUNDS; DOMAIN STRUCTURE; GERMANATES; LEAD COMPOUNDS; MOLYBDATES; CRYSTALS; DEFORMATION; ELECTRIC FIELDS; SOUND WAVES; SPIN ORIENTATION; WAVE PROPAGATION; GERMANIUM COMPOUNDS; MOLYBDENUM COMPOUNDS; ORIENTATION; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 360202* - Ceramics, Cermets, & Refractories- Structure & Phase Studies
OSTI ID:
5033998
Research Organizations:
Moskovskij Gosudarstvennyj Univ., USSR
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: FTVTA
Submitting Site:
INIS
Size:
Pages: 277-279
Announcement Date:

Journal Article:

Citation Formats

Belov, V V, Morozova, G P, and Serdobol'skaya, O Yu. Acoustic emission mechanism at switching of ferroelectric crystals. USSR: N. p., 1986. Web.
Belov, V V, Morozova, G P, & Serdobol'skaya, O Yu. Acoustic emission mechanism at switching of ferroelectric crystals. USSR.
Belov, V V, Morozova, G P, and Serdobol'skaya, O Yu. 1986. "Acoustic emission mechanism at switching of ferroelectric crystals." USSR.
@misc{etde_5033998,
title = {Acoustic emission mechanism at switching of ferroelectric crystals}
author = {Belov, V V, Morozova, G P, and Serdobol'skaya, O Yu}
abstractNote = {Process of acoustic emission (AE) in lead germanate (PGO) representing pure ferroelectric, and gadolinium molybdate (GMO) representing ferroelectric-ferroelastic, for which switching may be conducted both by the field and pressure, were studied. A conclusion has been drawn that piezoelectric excitation of a crystal from the surface by pulses of overpolarization current in the process of domain coalescence is the main AE source in PGO. Not only piezoresponse, but also direct sound generation in the moment of domain penetration and collapse is considered as AE mechanism in GMO.}
journal = {Fiz. Tverd. Tela (Leningrad); (USSR)}
volume = {28:1}
journal type = {AC}
place = {USSR}
year = {1986}
month = {Jan}
}