Synthesis, structure, dielectric properties and relaxor behavior of a novel solid solution (1-x)Pb(Mg1/3Nb2/3)O3-xBi(Zn2/3Nb1/3)O3

Liu, Z.; Yuan, Yi; Jaimeewong, Piyaporn; Wu, Hua; Ren, Wei; Ye, Zuo‐Guang

doi:10.1080/00150193.2018.1473545

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…The fitted γ values for all samples are 1.764, 1.75, 1.68, and 1.63, indicating a downward trend and confirming the weakening degree of RFE behavior in the PMN– x PZN system. It was reported that introducing Zn 2+ ions to the B‐site will increase chemical inhomogeneity and provide a stronger local field, resulting in enhanced RFE performance, which is in contrast to our findings 43 . According to Bing et al., the RFE behavior of PZN is intermediate between that of the conventional relaxor PMN and that of materials with obvious spontaneous RFE‐to‐FE phase transitions 33 .…”

Section: Resultscontrasting

confidence: 97%

“…It was reported that introducing Zn 2+ ions to the B-site will increase chemical inhomogeneity and provide a stronger local field, resulting in enhanced RFE performance, which is in contrast to our findings. 43 According to Bing et al, the RFE behavior of PZN is intermediate between that of the conventional relaxor PMN and that of materials with obvious spontaneous RFE-to-FE phase transitions. 33 The degree of diffuseness is found to be weakened as the PZN content increases, which may be due to a decrease in chemical disorder in this system.…”

Section: Resultsmentioning

confidence: 99%

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Enhanced electrostrains in PMN–xPZN solid solutions driven by a rather small electric field

et al. 2023

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Pb(Mg1/3Nb2/3)O3 (PMN) relaxors have gained a lot of interest due to their unusual dielectric relaxation and high electrostrictive electrostrain. However, the Tm (temperature associated with maximum permittivity) of PMN is lower than room temperature, which limits their future development of electrostrain and practical applications. In this study, we increased the Tm by incorporating a relaxor ferroelectric (FE) end member Pb(Zn1/3Nb2/3)O3 (PZN) rather than a conventional high Curie temperature FE end member to create (1−x)PMN–xPZN solid solutions with x = 0.2–0.5. Their dielectric, FE, and electrostrain properties were systematically investigated. In x = 0.4 composition, we get a maximum electrostrain of 0.134% and an equivalent piezoelectric coefficient of 936 pm/V under a rather small driving field of 5 kV/cm. Furthermore, the electrostrain of the x = 0.5 is greater than 0.1% between 20 and 80°C, indicating its possible applicability in precision displacement actuators. Our findings not only clarify the electrostrain and electrostrictive properties of (1 − x)PMN–xPZN system but also show an innovative way to improve electrostrain properties by constructing relaxor–relaxor type solid solutions that can be applied to other FE systems.

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Section: Resultscontrasting

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Enhanced electrostrains in PMN–xPZN solid solutions driven by a rather small electric field

et al. 2023

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“…The SBTN ceramic shows a larger dielectric permittivity at 260 K, which may be attributed to thermally activated reorientation of dipole moments of polar nanoregions as well as the motions and interactions of the polar nanoregion boundaries. 26 According to Zhu et al independent of the cation distribution in the A site, larger difference in radius of A-site ions always causes normal ferroelectric transition. 27 In their study, Sr5RTi3Nb7O30 (R = La, Nd, Sm, Eu) 27 ceramics shows a larger difference in radius between the A1 and A2 sites, which reduces the overlap distribution between the two cation sites and enhances octahedral distortion, making ferroelectric transformation easier.…”

Section: Dielectric Characterizationmentioning

confidence: 99%

Structure and relaxor ferroelectric behavior of the novel tungsten bronze type ceramic Sr5BiTi3Nb7O30

Schmid

Chen

et al. 2022

Journal of Applied Physics

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This paper reports a novel lead-free tungsten bronze type ceramic, Sr5BiTi3Nb7O30, prepared by a conventional high-temperature solid-state reaction route. The crystal structure identified using synchrotron x-ray diffraction data and Raman spectroscopy for Sr5BiTi3Nb7O30 could be described as an average structure with the centrosymmetric space group P4/mbm and a local non-centrosymmetric structure at room temperature. In the second-harmonic generation measurement, the Sr5BiTi3Nb7O30 compound exhibits second-order nonlinear optical behavior, which suggests the material is ferroelectric. Temperature dependence of the dielectric permittivity indicates that the dielectric anomaly in Sr5BiTi3Nb7O30, associated with the disorder on the A and B sites, results in strong frequency dispersion with a low phase-transition temperature. A macroscopic and phenomenological statistical model was employed to describe the temperature dependence of the dielectric responses of Sr5BiTi3Nb7O30 and Sr6Ti2Nb8O30. The calculated sizes of polar nanoregions for both compounds imply structural disorder induced by A and B sites, giving rise to a more diffuse ferroelectric transition for Sr5BiTi3Nb7O30. The smaller polar nanoregions with smaller electrical dipole moments can be activated at lower temperatures, leading to Sr5BiTi3Nb7O30 having a lower Tm (∼260 K) than other tungsten bronze type ferroelectrics. This work charts a promising feasible route to the development of improved relaxor ferroelectrics in tungsten bronze type oxides.

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Effects of antiferroelectric substitution on the structure and ferroelectric properties of a complex perovskite solid solution

et al. 2020

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Synthesis, structure, dielectric properties and relaxor behavior of a novel solid solution (1-x)Pb(Mg_1/3Nb_2/3)O₃-xBi(Zn_2/3Nb_1/3)O₃

Cited by 3 publications

References 24 publications

Enhanced electrostrains in PMN–xPZN solid solutions driven by a rather small electric field

Enhanced electrostrains in PMN–xPZN solid solutions driven by a rather small electric field

Structure and relaxor ferroelectric behavior of the novel tungsten bronze type ceramic Sr5BiTi3Nb7O30

Effects of antiferroelectric substitution on the structure and ferroelectric properties of a complex perovskite solid solution

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