Paper Title:
Domain Dynamics of C-Axis Polarization in Bismuth Titanate Crystals
  Abstract

Polarization switching and domain dynamics in unpoled and poled crystals of bismuth titanate by applying electric field along the crystallographic c axis were investigated through polarization measurements and domain observations by optical microscope and piezoelectric force microscope. Poled crystals showed a well-saturated polarization hysteresis with a remanent polarization of 4.4 μC/cm2 and a coercive field of 4.7 kV/cm. Domain observations reveal that lenticular domain acts as an initial nucleus during polarization switching. The sidewise motion of the lenticular-domain walls and resultant single domain state were easily established for the poled crystals, while the lenticular domains observed in unpoled crystals were clamped even though a high electric field was applied to them.

  Info
Periodical
Edited by
K. Katayama, K. Kato, T. Takenaka, M. Takata and K. Shinozaki
Pages
69-72
DOI
10.4028/www.scientific.net/KEM.350.69
Citation
Y. Kitanaka, Y. Noguchi, M. Miyayama, "Domain Dynamics of C-Axis Polarization in Bismuth Titanate Crystals", Key Engineering Materials, Vol. 350, pp. 69-72, 2007
Online since
October 2007
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Price
$32.00
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