Investigation of structural, vibrational, and dual-ferroic properties of BaTiO3-Ni0.7Zn0.3Fe2O4 nanocomposites

IF 2.7 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Electroceramics Pub Date : 2026-01-12 DOI:10.1007/s10832-025-00448-3

Akshay Thakur, Anand Somvanshi, Abhishek Kumar, Sanjeev Kumar, M. M. Rekha, Mehroosh Fatema, Kaushal Kumar, M. Abushad, Mukul Kumar, Nandni Sharma

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引用次数: 0

Abstract

Multiferroic ceramics (1-x)BaTiO₃-xNi_0.7Zn_0.3Fe₂O₄ exhibit strong correlations between structural distortion, vibrational dynamics, and magnetic behavior. X-ray diffraction, Raman, and FTIR analyses reveal a slight contraction of the BaTiO₃ lattice and a blue shift in the Ti–O stretching mode, indicating increased bond energy due to spinel phase incorporation. Zn²⁺ substitution in the ferrite phase optimizes cation distribution, enhancing Fe³⁺–Fe³⁺ superexchange interactions and increasing saturation magnetization from 0.182 emu/g (x = 0) to 12.84 emu/g (x = 0.3) while reducing coercivity from 0.25 kOe to 0.082 kOe. Maximum polarization peaks at 57.08 µC/cm² for x = 0.2, attributed to strong internal fields and efficient domain switching. These results demonstrate tunable ferroelectric and magnetic responses in BTO–NZFO composites, highlighting their potential for magnetoelectric sensors and multifunctional electronic devices.

Graphical Abstract

查看原文本刊更多论文

BaTiO3-Ni0.7Zn0.3Fe2O4纳米复合材料的结构、振动和双铁性能研究

多铁陶瓷（1-x）BaTiO3-xNi0.7Zn0.3Fe2O4在结构畸变、振动动力学和磁性行为之间表现出很强的相关性。x射线衍射、拉曼和红外光谱分析显示，BaTiO3晶格轻微收缩，Ti-O拉伸模式出现蓝移，表明尖晶石相掺入增加了键能。铁素体相中Zn2+的取代优化了阳离子分布，增强了Fe3+ -Fe3 +的超交换相互作用，将饱和磁化强度从0.182 emu/g （x = 0）提高到12.84 emu/g (x = 0.3)，同时将矫顽力从0.25 kOe降低到0.082 kOe。当x = 0.2时，最大极化峰为57.08µC/cm2，这是由于强大的内部场和高效的畴切换。这些结果证明了BTO-NZFO复合材料的铁电和磁响应可调，突出了它们在磁电传感器和多功能电子器件方面的潜力。图形抽象

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来源期刊

Journal of Electroceramics 工程技术-材料科学：硅酸盐

CiteScore

2.80

自引率

5.90%

发文量

审稿时长

5.7 months

期刊介绍： While ceramics have traditionally been admired for their mechanical, chemical and thermal stability, their unique electrical, optical and magnetic properties have become of increasing importance in many key technologies including communications, energy conversion and storage, electronics and automation. Electroceramics benefit greatly from their versatility in properties including: -insulating to metallic and fast ion conductivity -piezo-, ferro-, and pyro-electricity -electro- and nonlinear optical properties -feromagnetism. When combined with thermal, mechanical, and chemical stability, these properties often render them the materials of choice. The Journal of Electroceramics is dedicated to providing a forum of discussion cutting across issues in electrical, optical, and magnetic ceramics. Driven by the need for miniaturization, cost, and enhanced functionality, the field of electroceramics is growing rapidly in many new directions. The Journal encourages discussions of resultant trends concerning silicon-electroceramic integration, nanotechnology, ceramic-polymer composites, grain boundary and defect engineering, etc.