Structural, magnetic and ferroelectric properties of magnetoelectrically coupled xBa0.95Sr0.05TiO3-(1–x)BiFe0.90Sm0.10O3 ceramics

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY Phase Transitions Pub Date : 2023-07-25 DOI:10.1080/01411594.2023.2231125

Mohammad J. Miah, M. I. Khan, M. M. Rahman, A. Akther Hossain

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Abstract

ABSTRACT The standard solid state reaction method was followed to synthesize the polycrystalline xBa0.95Sr0.05TiO3-(1–x)BiFe0.9Sm0.1O3 [xBST-(1–x)BFSmO, x = 0–0.35] ceramics. The XRD pattern revealed a structural transition of the prepared ceramics from rhombohedral to cubic symmetry. The mean grain size was estimated in the micrometer range, with values ranging from 0.40 to 1.95 μm. The maximum real part of the complex initial permeability of 28.26 was noticed for x = 0.30 multiferroic ceramics. The highest remanent magnetization determined for the x = 0.30 sample was 3.4 10−2 emu/g. For the sample with x = 0.35 the maximum recorded dielectric constant was found to be 677 at 103 Hz. A small value of dielectric loss (<5%) was observed. The compound exhibited significant remanent polarization and a reduction in the leakage current. In addition, the investigated materials comprise large magnetoelectric coefficients and the optimum magnetoelectric coefficient of 0.662 mV.cm−1.Oe−1was obtained for the x = 0.30 composition.

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磁电耦合xBa0.95Sr0.05TiO3-（1–x）BiFe0.90Sm0.10O3陶瓷的结构、磁性和铁电性能

摘要采用标准固相反应方法合成了多晶xBa0.95Sr0.05TiO3-（1–x）BiFe0.9Sm0.1O3[xBST-（1–x）BFSmO，x = 0–0.35]陶瓷。XRD图谱显示所制备的陶瓷的结构从菱面体向立方对称转变。平均晶粒度估计在微米范围内，数值范围从0.40到1.95 μm。x的复数初始渗透率的最大实部为28.26 = 0.30多铁性陶瓷。x的最高剩余磁化强度 = 0.30样品为3.4 10−2 emu/g。对于带有x的样本 = 0.35，发现在103Hz下记录的最大介电常数为677。观察到较小的介电损耗值（<5%）。该化合物表现出显著的残余极化和漏电流的减少。此外，所研究的材料包括大的磁电系数和0.662的最佳磁电系数 x获得的mV.cm−1.Oe−1 = 0.30组成。

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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.