BaTiO3对Pb(Fe0.5Nb0.5)O3-BaTiO3固溶体介电性能、铁电性能和电导率的影响

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2022-11-14 DOI:10.1080/01411594.2022.2138757

Geetanjali Biswal, Krishnamayee Bhoi, D. Pradhan, B. Behera, P. Das

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引用次数: 0

摘要

摘要在本报告中，我们研究了BaTiO3对0.05和0.1）固溶体的初步结构分析、铁电相变和电学性能的影响。采用常规的固态反应技术合成固溶体。X射线衍射（XRD）分析用于研究初步的结构分析，表明单相材料的形成。采用场发射扫描电子显微镜（FESEM）对其表面形貌进行了研究。依赖于温度的介电性质显示出从铁电态到顺电态的宽扩散相变，并且发现相变温度随着BT浓度的增加而降低。通过在室温下对极化与电场（P–E）回路的研究，证实了固溶体的铁电性质。还研究了交流电导率随频率和温度的变化。BT的加入导致介电损耗和相变温度的降低。

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BaTiO3 induced modification on the dielectric, ferroelectric and electrical conductivity properties of Pb(Fe0.5Nb0.5)O3-BaTiO3 solid solution

ABSTRACT In this report, we have investigated the effect of BaTiO3 on the preliminary structural analysis, ferroelectric phase transition and electrical properties of 0.05, and 0.1) solid solutions. Conventional solid-state reaction technique is adopted to synthesize solid solution. X-ray diffraction (XRD) analysis is used to study the preliminary structural analysis, which suggests the formation of the single-phase materials. The surface morphology is studied using field emission scanning electron microscope (FESEM). The temperature-dependent dielectric properties display a broad diffuse phase transition from ferroelectric to paraelectric state and the phase transition temperature was found to be decreased with an increase in BT concentrations. Ferroelectric property of the solid solutions is confirmed by the polarization vs. electric field (P–E) loops study at room temperature. Variation of AC conductivity with frequency and temperature is also studied. The addition of BT leads to a decrease in the dielectric loss and phase transition temperature.

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来源期刊

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.