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Jo, Wook
Sustainable Functional Ceramics Lab
Research Interests
  • Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics

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Can an Electric Field Induce an Antiferroelectric Phase Out of a Ferroelectric Phase?

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Title
Can an Electric Field Induce an Antiferroelectric Phase Out of a Ferroelectric Phase?
Author
Tan, XFrederick, J.Ma, C.Jo, WookRoedel, J.
Keywords
Antiferroelectric phase transition; Antiferroelectrics; Coercive field; Converse piezoelectric effects; Electric dipole; Ferroelectric phase; Polycrystalline ceramics; Volume contraction
Issue Date
2010-12
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v.105, no.25, pp. -
Abstract
It has been widely accepted that electric fields favor the ferroelectric phase with parallel electric dipoles over the antiferroelectric phase. With detailed measurements in polycrystalline ceramics of Pb(0.99)Nb(0.02)[(Zr(0.57)Sn(0.43))(1-y)Ti(y)](0.98)O(3), we demonstrate in this Letter that electric fields can induce an antiferroelectric phase out of a ferroelectric phase, i.e., trigger an apparently unlikely ferroelectric-to-antiferroelectric phase transition. We suggest that it is caused by the volume contraction from the converse piezoelectric effect at the coercive field with a reversed polarity.
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DOI
10.1103/PhysRevLett.105.255702
ISSN
0031-9007
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