Phase coexistence and Landau expansion parameters for a 
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Zhang, Hangbo; Lu, Xiaoyan; Wang, Qianqian; Zheng, Limei; Liu, Zhen; Yang, Chao; Zhang, Rui; Yang, Bin; Cao, Wenwu

doi:10.1103/physrevb.96.054109

Cited by 26 publications

(10 citation statements)

References 30 publications

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“…In Figure A, all the samples have the same T c (142°C), indicating the consistent composition x = 0.30. According to dielectric anomalous peaks (Figure A), the phase transition sequence of the [001]‐poled PMN‐0.30PT crystals is R → T → Cubic (C) as the temperature rises . Moreover, the [011]‐poled samples experience a structural phase transformations sequence R → orthorhombic (O) → T → C with temperature increasing, as evidenced by 3 obvious dielectric permittivity anomalies at 81, 102 and 135°C (Figure A), respectively.…”

Section: Resultsmentioning

confidence: 99%

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Anisotropic domain switching in Pb(Mg_1/3Nb_2/3)O₃‐0.30PbTiO₃ single crystals with rhombohedral structure

Zhou

et al. 2018

J Am Ceram Soc

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Anisotropic domain switching paths in [001]‐, [011]‐, and [111]‐poled Pb(Mg1/3Nb2/3)O3‐0.30PbTiO3 single crystals were studied by in situ polarized light microscopic driven by an antiparallel electric field. Orientation‐dependent electric field induced polarization and strain behaviors were investigated systematically. For [001]‐oriented crystals, only one‐step 71° switching occurred during the domain switching process, resulting in the appearance of stripe domain walls whose traces on (001) plane were along 45° or 135° with respect to [100] direction. But for [011]‐oriented samples, a two‐step 71° switching was observed during 109° switching and the projections of formed twin domain walls on the (011) plane are along 35.3° or 144.7° with respect to [01true1false¯] direction. Moreover, a three‐step 71° switching was found during 180° switching in [111]‐oriented samples. It was demonstrated by the produced domain walls whose projections on the (1true1false¯0) plane are along 35.3°, 90° or 160.6° with respect to [11true2false¯] direction. The energetically motivated mechanism based on multistep polarization switching process was also proposed to explain the anisotropic domain switching paths. Our results provided a visualized observation on the ferroelectric domain switching process and also laid the solid foundations for controlling polarization order parameter in ferroelectric single crystals.

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Section: Resultsmentioning

confidence: 99%

“…Cubic (C) as the temperature rises. 29 Moreover, the [011]-poled samples experience a structural phase transformations sequence R ? orthorhombic (O) ?…”

Section: Phase Determination After Polingmentioning

confidence: 99%

Anisotropic domain switching in Pb(Mg_1/3Nb_2/3)O₃‐0.30PbTiO₃ single crystals with rhombohedral structure

Zhou

et al. 2018

J Am Ceram Soc

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“…The values of parameters Ain and Aout for some perovskite ferroelectrics are listed in Table S1. [42][43][44] The parameters given in Table S1 clearly suggest that the polarization response of the strained films is anisotropic. Obviously, (111)-oriented ferroelectric films have a weaker anisotropic property than (001)-oriented ferroelectric films.…”

Section: Structurementioning

confidence: 98%

Phase-transition induced giant negative electrocaloric effect in a lead-free relaxor ferroelectric thin film

Peng

Zhang

Bai

et al. 2019

Energy Environ. Sci.

108

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“…Poling relaxor-PbTiO 3 materials close to the MPB may therefore enhance nanoscale structural variations that emerge from compositional variations, giving rise to phase domains with different crystal symmetries and polarisation orientations. Theoretical work shows that rhombohedral and tetragonal regions can coexist in PMN-PT 37 and there have been experimental observations of tetragonal nanodomains in PMN-PT 38,39 . In the case of both PMN-PT and PIN-PMN-PT, the monoclinic symmetry is one in which the average polarisation vector is close to [111], hence if this were a composite structure of tetragonal and rhombohedral nanodomains, the tetragonal phase would be a relatively small volume fraction.…”

Section: Discussionmentioning

confidence: 99%

Effects of poling and crystallinity on the dielectric properties of Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 at cryogenic temperatures

Shepley

Stoica

et al. 2019

Sci Rep

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The mechanisms underlying the anomalously large, room temperature piezoelectric activity of relaxor-PbTiO 3 type single crystals have previously been linked to low temperature relaxations in the piezoelectric and dielectric properties. We investigate the properties of Pb(In 1/2 Nb 1/2 )O 3 -Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 between 10 and 300 K using dielectric permittivity measurements. We compare results on single crystal plates measured in the [001] and [111] directions with a polycrystalline ceramic of the same composition. Poled crystals have very different behaviour to unpoled crystals, whereas the dielectric spectrum of the polycrystalline ceramic changes very little on poling. A large, frequency dependent dielectric relaxation is seen in the poled [001] crystal around 100 K. The relaxation is much less prominent in the [111] cut crystal, and is not present in the polycrystalline ceramic. The unique presence of the large relaxation in poled, [001] oriented crystals indicates that the phenomenon is not due their relaxor nature alone. We propose that heterophase dynamics such as the motion of phase domain boundaries are responsible for both the anomalous electromechanical and dielectric behaviour.

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Phase coexistence and Landau expansion parameters for a 0.70Pb(Mg1/3Nb2/3

Cited by 26 publications

References 30 publications

Anisotropic domain switching in Pb(Mg_1/3Nb_2/3)O₃‐0.30PbTiO₃ single crystals with rhombohedral structure

Anisotropic domain switching in Pb(Mg_1/3Nb_2/3)O₃‐0.30PbTiO₃ single crystals with rhombohedral structure

Phase-transition induced giant negative electrocaloric effect in a lead-free relaxor ferroelectric thin film

Effects of poling and crystallinity on the dielectric properties of Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 at cryogenic temperatures

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Phase coexistence and Landau expansion parameters for a 0.70Pb(Mg1/3Nb2/3

Cited by 26 publications

References 30 publications

Anisotropic domain switching in Pb(Mg1/3Nb2/3)O3‐0.30PbTiO3 single crystals with rhombohedral structure

Anisotropic domain switching in Pb(Mg1/3Nb2/3)O3‐0.30PbTiO3 single crystals with rhombohedral structure

Phase-transition induced giant negative electrocaloric effect in a lead-free relaxor ferroelectric thin film

Effects of poling and crystallinity on the dielectric properties of Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 at cryogenic temperatures

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Anisotropic domain switching in Pb(Mg_1/3Nb_2/3)O₃‐0.30PbTiO₃ single crystals with rhombohedral structure

Anisotropic domain switching in Pb(Mg_1/3Nb_2/3)O₃‐0.30PbTiO₃ single crystals with rhombohedral structure