ItemArticle

Enhanced transport, dielectric and magnetic properties of Ni-doped (YFeO3)0.5(BaTiO3)0.5 perovskite for NTC thermistor and multifunctional applications

Title
Enhanced transport, dielectric and magnetic properties of Ni-doped (YFeO3)0.5(BaTiO3)0.5 perovskite for NTC thermistor and multifunctional applications
Creator
Chouhan, Harshavardhan; Prasad, Saurabh; Parida, B.N.; Parida, R.K.
Description
The solid-state reaction method was successfully employed to synthesize the environmentally friendly polycrystalline perovskite (Y0.5Ni0.5FeO3)0.5(BaTiO3)0.5. X-ray diffraction (XRD) analysis, complemented by Rietveld refinement, confirms its multiphase crystalline structure, comprising two cubic and one orthorhombic phase. Field-emission scanning electron microscopy (FE-SEM) reveals a well-defined surface morphology, while energy-dispersive spectroscopy (EDS) and elemental mapping validate the homogeneous distribution of constituent elements. Raman and FTIR spectroscopy further confirm the vibrational and atomic structural integrity of the material. Dielectric studies indicate a high dielectric constant (?338 at 100 Hz, room temperature), with strong frequency and temperature-dependent relaxation effects. Impedance spectroscopy reveals non-Debye relaxation behaviour, NTCR characteristics and impedance in the megaohm range at lower temperatures. AC conductivity results align well with Jonscher's power law. The thermistor coefficient (?) reaches 4778.61 at 450 C, demonstrating excellent potential for thermistor applications. Magnetic studies confirm a prominent ferromagnetic response at room temperature, with a saturation magnetization of 3.654 emu g?1 and coercive field of 196.4 Oe. These combined properties make (Y0.5Ni0.5FeO3)0.5(BaTiO3)0.5 a promising candidate for multifunctional applications. 2025 RSC.
Source
Materials Advances;Volume;6;Issue;14;pp.4778-4794
Date
01-01-2025
Publisher
Royal Society of Chemistry
Coverage
Chouhan H., Department of Physics, Central Institute of Technology Kokrajhar, Deemed to be University, MoE, Govt. of India, BTR, Assam, 783370, India; Prasad S., Department of Physics, Central Institute of Technology Kokrajhar, Deemed to be University, MoE, Govt. of India, BTR, Assam, 783370, India; Parida B.N., Department of Physics, Central Institute of Technology Kokrajhar, Deemed to be University, MoE, Govt. of India, BTR, Assam, 783370, India; Parida R.K., Department of Physics, Siksha O Anusandhan (Deemed to be University), Khandigiri, Odisha, Bhubaneswar, 751030, India
Rights
All Open Access; Gold Open Access
Relation
ISSN: 26335409;
Format
online
Language
English
Type
Article

Citation

Chouhan, Harshavardhan; Prasad, Saurabh; Parida, B.N.; Parida, R.K., “Enhanced transport, dielectric and magnetic properties of Ni-doped (YFeO3)0.5(BaTiO3)0.5 perovskite for NTC thermistor and multifunctional applications,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22545.

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