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Applied Physics Letters / Volume 96 / Issue 22 / DIELECTRICS AND FERROELECTRICITY

Appl. Phys. Lett. 96, 222905 (2010); http://dx.doi.org/10.1063/1.3443717 (3 pages)

Hierarchical domains in Na1/2Bi1/2TiO3 single crystals: Ferroelectric phase transformations within the geometrical restrictions of a ferroelastic inheritance

Jianjun Yao1, Wenwei Ge1, Liang Luo1, Jiefang Li1, D. Viehland1, and Haosu Luo2

1Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA
2Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China

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(Received 25 September 2009; accepted 13 May 2010; published online 3 June 2010)

We have found unique hierarchical domains in Na1/2Bi1/2TiO3 single crystals. A tetragonal ferroelastic domain structure is unchanged on cooling from 520 to 25 °C. Polar microdomains then nucleated on cooling in the rhombohedral ferroelectric phase within the geometrical restrictions imposed by the inherited ferroelastic domains.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

bismuth compounds, cooling, domains, ferroelasticity, ferroelectric materials, ferroelectric transitions, nucleation, sodium compounds

PACS

  • 77.80.B-

    Phase transitions and Curie point

  • 64.60.qj

    Studies of nucleation in specific substances

  • 77.84.-s

    Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials

  • 81.40.Jj

    Elasticity and anelasticity, stress-strain relations

  • 62.20.fg

    Shape-memory effect; yield stress; superelasticity

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3443717

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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