Investigation of magneto electric coupling on the environmentally friendly 0.94NBT-0.06BCZT/ CoFe2O4 particulate composite

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-03-19 DOI:10.1016/j.mseb.2025.118201

P. Girija , M. Indhu Priya , R. Adinarayana Reddy , T. Sailaja Rani , Rameeza Begum Sheik , D. Sharmila , M. Gnanakiran , Simhadri Raju Juvvala , Parimala Jajjara , Ramanaiah Malla

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引用次数: 0

Abstract

The solid-state reaction method is employed to fabricate the lead-free 0.94NBT-0.06BCZT (NBT-BCZT) and CoFe₂O₄ (CFO) ceramics. The sintered discs are then bonded using silver epoxy to form the laminated NBT-BCZT/CFO composites. These materials are well-suited for evaluation as laminated magnetoelectric (ME) composites, as indicated by key parameters, including a dielectric constant (ε′) of approximately 4660 at 10 kHz, remanent polarization (P_r) of around 36 μC/cm², coercive electric field (E_c) of about 54 kV/cm, saturation magnetization (M_s) near 54 emu/g, coercive magnetic field (H_c) of roughly 29 Oe, and magnetostriction (λ) approximately –32 ppm for CFO. At an H_dc field of 300–350 Oe and a frequency @ 1 kHz, the maximum ME response for the NBT-BCZT/CFO, NBT-BCZT/CFO/NBT-BCZT, and CFO/NBT-BCZT/CFO layered composites are 34, 60, and 78 mV/cm Oe respectively. Magneto electric coupling is a fascinating subject for both fundamental research and the development of advanced technological applications. Understanding and harnessing this coupling opens up opportunities for innovations in memory devices, sensors, energy systems, and quantum technologies. These advancements have the potential to make a lasting impact on industries such as computing, healthcare, and energy sustainability. The CFO/NBT-BCZT/CFO laminated composite proves to be an excellent lead-free candidate for ME sensors and energy harvesting, as demonstrated by its high ME response at moderate field strengths.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.