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Title: Observation of Room Temperature Raman, Magnetic and Ferroelectric Response of (𝟏 − 𝐱)𝐍𝐢𝐂𝐨𝟐𝐎𝟒 − 𝐱𝐁𝐚𝐓𝐢𝐎𝟑 Nanocomposites System
Authors: Karmakar, Subrata
Sahoo, Bibekananda
Behera, Dhrubananda
Keywords: Spinel/ilmenite composites
Raman modes
M-H & P-E analysis
Issue Date: Jun-2019
Citation: International Conference on Advanced Materials (ICAM 2019), Nirmalagiri College, Kerala, India, 12 – 14 June 2019
Abstract: The single phase NiCo2O4 and BaTiO3 were synthesized via Coprecipation and solgel auto-combustion route separately and polycrystalline novel Nanocomposites (1-x)NiCo2O4-xBaTiO3 [x=0.1, 0.3, 0.5] were prepared by ultra-sonication respectively with a prospect to understand the correlation between room temperature magnetic and ferroelectric performance. The structural information, pure phase formation and surface morphology with elemental composition were confirmed by XRD, FTIR and FESEM analysis.Various Raman peaks (F2g, Eg, A1g) were observed corresponding to NiCo2O4 and E(TO), E(LO+TO) and E(LO) are assigned to BaTiO3 nanoparticles. The M-H hysterics loop exhibits the curtailment of saturation magnetization and coercive field of NiCo2O4 from 5.07 emu/gm. to 2.8 emu/gm. and 448 Oe to 61 Oe with the incorporation of 50% BaTiO3. Furthermore, the P-E response enhances in NiCo2O4 with evolution of BaTiO3 percentages. Tuning the magnetic and ferroelectric properties is a huge demand of several technologies to integrate future magnetic and nanodevices.
Description: Copyright of this document belongs to proceedings publisher.
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