In situ observation of ferroelectric domain configurations in unpoled 0.92Pb(Zn1/3Nb2/3)O-3-0-08PbTiO(3) crystals by synchrotron radiation topography

摘要

In situ observation of ferroelectric domain structures and phase transition in unpoled 0.92Pb(Zn1/3Nb2/3)O-3-0.08PbTiO(3) (PZN-8%PT) crystals has been successful performed by real time white-beam synchrotron radiation topography (WBSRT) with several aluminum foils for surrounding the sample. This novel topography method can be used to overcome the shortage of the common WBSRT for investigating lead-contained crystals. The complex and unique configurations and dynamic behaviors of ferroelectric domain walls in unpoled PZN-8%PT induced by temperature variation were revealed, which were believed to be meaningful for indicating the intrinsic nature of the phase transition and the origin of the strong piezoelectricity in relaxor ferroelectric materials. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 19]