Coexistence of ferroelectricity and antiferroelectricity in lead zirconate titanate

Asada, T.; Koyama, Yasumasa

doi:10.1103/physrevb.70.104105

Cited by 42 publications

(39 citation statements)

References 17 publications

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“…Note that the tweed-like contrast is often observed in the preformed state just above the 1 st order structural phase transition temperature. It has been recognized that the strain-field originating from the coexisting state due to the emergence of the second phase in the parent phase gives rise to the tweed-like contrast in the dark-field image [15][16][17][18]. From the fact that the tweed-like contrast found in the x=0.35 compound is very similar to that in alloys showing the 1 st order transition, it is suggested that the state in the x=0.35 compound should be characterized as the coexisting state consisting of the distorted rhombohedral one inside the non-distorted cubic one.…”

Section: Resultsmentioning

confidence: 99%

Nano-sized domain structures in the psudocubic phase of (1-x)BiFeO3-xBaTiO3 (0.33＜x＜0.60)

Ozaki

Nishihara

Hosokoshi

et al. 2009

Trans. Mat. Res. Soc. Japan

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Section: Resultsmentioning

confidence: 99%

Nano-sized domain structures in the psudocubic phase of (1-x)BiFeO3-xBaTiO3 (0.33＜x＜0.60)

Ozaki

Nishihara

Hosokoshi

et al. 2009

Trans. Mat. Res. Soc. Japan

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“…However, this law fails owing to the dynamical effect [17]. Therefore, in ferroelectric crystals, ferroelectric regions with the polarization P appear as bright areas in dark-field images taken by selecting reflections with g · P > 0 under the two-beam condition [18][19][20]. This technique is applied in this study to analyze the ferroelectric domain structure and polarization vector of PTO films at the nanoscale.…”

Section: Introductionmentioning

confidence: 99%

Diffraction contrast analysis of 90° and 180° ferroelectric domain structures of PbTiO₃thin films

Aoyagi¹,

Kiguchi²,

Yamada³

et al. 2011

Science and Technology of Advanced Materials

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The ferroelectric domain structure of a PbTiO 3 thin film on (100) SrTiO 3 has been investigated by transmission electron microscopy (TEM). Two types of a-domain were found: one extended through the film to the surface and another comprised small a-domains confined within the film. Dark-field TEM (DFTEM) observation revealed that 180• domains formed near the substrate and stopped their growth 100 nm away from the substrate. The DFTEM observation also revealed that 90• domain boundaries had head-to-tail structures. To confirm the polarization direction obtained by experiments, diffracted intensities under a two-beam condition were simulated using the extended Darwin-Howie-Whelan equations. On the basis of the obtained results, a ferroelectric domain structure model of PbTiO 3 thin films on SrTiO 3 is proposed.

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“…This contrast was interpreted using dark-field imaging under the g · P condition based on the violation of Friedel's law by the dynamical effects [23][24][25][26]. The details will be reported elsewhere [27].…”

Section: Overview and 90mentioning

confidence: 99%

Configuration and local elastic interaction of ferroelectric domains and misfit dislocation in PbTiO₃/SrTiO₃epitaxial thin films

Kiguchi

Aoyagi

Ehara

et al. 2011

Science and Technology of Advanced Materials

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We have studied the strain field around the 90• domains and misfit dislocations in PbTiO 3 /SrTiO 3 (001) epitaxial thin films, at the nanoscale, using the geometric phase analysis (GPA) combined with high-resolution transmission electron microscopy (HRTEM) and high-angle annular dark field--scanning transmission electron microscopy (HAADF-STEM). The films typically contain a combination of a/c-mixed domains and misfit dislocations. The PbTiO 3 layer was composed from the two types of the a-domain (90• domain): a typical a/c-mixed domain configuration where a-domains are 20-30 nm wide and nano sized domains with a width of about 3 nm. In the latter case, the nano sized a-domain does not contact the film/substrate interface; it remains far from the interface and stems from the misfit dislocation. Strain maps obtained from the GPA of HRTEM images show the elastic interaction between the a-domain and the dislocations. The normal strain field and lattice rotation match each other between them. Strain maps reveal that the a-domain nucleation takes place at the misfit dislocation. The lattice rotation around the misfit dislocation triggers the nucleation of the a-domain; the normal strains around the misfit dislocation relax the residual strain in a-domain; then, the a-domain growth takes place, accompanying the introduction of the additional dislocation perpendicular to the misfit dislocation and the dissociation of the dislocations into two pairs of partial dislocations with an APB, which is the bottom boundary of the a-domain. The novel mechanism of the nucleation and growth of 90• domain in PbTiO 3 /SrTiO 3 epitaxial system has been proposed based on above the results.

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Coexistence of ferroelectricity and antiferroelectricity in lead zirconate titanate

Cited by 42 publications

References 17 publications

Nano-sized domain structures in the <i>psudo</i>cubic phase of (1-x)BiFeO<sub>3</sub>-xBaTiO<sub>3</sub> (0.33＜x＜0.60)

Nano-sized domain structures in the <i>psudo</i>cubic phase of (1-x)BiFeO<sub>3</sub>-xBaTiO<sub>3</sub> (0.33＜x＜0.60)

Diffraction contrast analysis of 90° and 180° ferroelectric domain structures of PbTiO₃thin films

Configuration and local elastic interaction of ferroelectric domains and misfit dislocation in PbTiO₃/SrTiO₃epitaxial thin films

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Coexistence of ferroelectricity and antiferroelectricity in lead zirconate titanate

Cited by 42 publications

References 17 publications

Nano-sized domain structures in the <i>psudo</i>cubic phase of (1-x)BiFeO<sub>3</sub>-xBaTiO<sub>3</sub> (0.33＜x＜0.60)

Nano-sized domain structures in the <i>psudo</i>cubic phase of (1-x)BiFeO<sub>3</sub>-xBaTiO<sub>3</sub> (0.33＜x＜0.60)

Diffraction contrast analysis of 90° and 180° ferroelectric domain structures of PbTiO3thin films

Configuration and local elastic interaction of ferroelectric domains and misfit dislocation in PbTiO3/SrTiO3epitaxial thin films

Contact Info

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Resources

About

Diffraction contrast analysis of 90° and 180° ferroelectric domain structures of PbTiO₃thin films

Configuration and local elastic interaction of ferroelectric domains and misfit dislocation in PbTiO₃/SrTiO₃epitaxial thin films