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Updated: Sep 23, 2025
08:00
Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Published on: March 27, 2018
11.2K
Structural, electrical, and multiferroic characteristics of lead-free multiferroic: Bi(Co0.5Ti0.5)O3-BiFeO3 solid
Nitin Kumar1, Alok Shukla1, Nripesh Kumar1
1Department of Physics, National Institute of Technology Mizoram Aizawl-796012 India nitinphysicskushawaha@gmail.com.
RSC Advances
|May 13, 2022
Summary
This study synthesizes bismuth cobalt titanate and bismuth ferrite solid solutions (BCTF80/20) using a cost-effective solid-state method. The material shows enhanced remnant polarization and magnetization, making it promising for new electronic devices.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Condensed Matter Physics
Background:
- Bismuth ferrite (BiFeO3) is a multiferroic material with potential applications in electronic devices.
- Developing novel solid solutions can enhance the properties of existing functional materials.
Purpose of the Study:
- To synthesize and characterize a novel solid solution of bismuth cobalt titanate and bismuth ferrite, denoted as Bi(Co0.40Ti0.40Fe0.20)O3 (BCTF80/20).
- To investigate the microstructure, electrical properties, and magnetic behavior of the synthesized BCTF80/20 material.
- To evaluate the potential of BCTF80/20 for next-generation electronic devices.
Main Methods:
- Solid-state synthesis technique for creating the BCTF80/20 composition.
- Powder X-ray diffraction for phase identification and structural symmetry analysis.
- Field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray (EDX) for microstructural and elemental analysis.
- Electrical property measurements (dielectric constant, loss, impedance, modulus, conductivity) across a range of temperatures and frequencies.
- Magnetic hysteresis loop measurements at room temperature.
Main Results:
- The BCTF80/20 material was successfully synthesized with an average crystallite size of ~30 nm and grain size of ~1-2 microns.
- Electrical parameters showed a strong correlation with microstructure, and relaxation mechanisms deviated from ideal Debye-like behavior.
- BCTF80/20 exhibited enhanced remnant polarization compared to BiFeO3, as evidenced by P-E hysteresis loops.
- Significant improvement in magnetization was observed for BCTF80/20 at room temperature.
Conclusions:
- The synthesized BCTF80/20 solid solution possesses desirable electrical and magnetic properties.
- The enhanced remnant polarization and magnetization suggest BCTF80/20 is a promising candidate for advanced electronic device applications.
- The study highlights the potential of solid solutions in tailoring material properties for functional applications.
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