Article
Materials Science, Ceramics
C. Murugesan, K. Ugendar, L. Okrasa, Jun Shen, G. Chandrasekaran
Summary: In this study, nanocrystalline Mn-Zn ferrites were synthesized through a solvent-free combustion reaction method and characterized using various techniques. The results showed that Zn substitution affects the crystallite size and electrical properties of the samples, but does not significantly alter the ionic states. The Zn-substituted manganese ferrite nanoparticles hold promise for high-frequency electronic device applications.
CERAMICS INTERNATIONAL
(2021)
Article
Crystallography
Hector A. Chinchay-Espino, Gina M. Montes-Albino, Carlex M. Morales-Cruz, Segundo E. Dobbertin-Sanchez, Segundo Rojas-Flores
Summary: The effect of Co substitution on the structural and magnetic properties of BiFeO3 was studied, and Co-BiFeO3 nanopowders were successfully synthesized via the sol-gel method, exhibiting ferromagnetic properties at 15% Co doping.
Article
Chemistry, Inorganic & Nuclear
Chandan C. Naik, A. Salker
Summary: A Mn-substituted Co-Cu ferrite was prepared by a sol-gel auto-combustion route, and the prepared samples were characterized using various techniques. The results showed that the samples exhibited good crystallinity and monophasic formation, and the Mn substitution had a significant impact on the magnetic and dielectric properties of the samples.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Soumya G. Nair, Jyotirmayee Satapathy
Summary: This work investigates the synthesis and characterizations of (holmium, manganese)-codoped BFOs using solid-state synthesis route, and explores their structural transition and multiferroic properties. The experimental results reveal the relaxation behavior, electric and magnetic coupling, and non-Debye relaxation of the samples. The ferroelectric loop becomes lossy with the reduction in dielectric dispersion. Evaluation: 8 points.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Materials Science, Ceramics
P. T. Tho, N. Tran, M. Y. Lee, N. Dang, P. T. Phong, L. T. Ha, H. T. Van, N. N. Tran, D. T. Khan, B. W. Lee, C. T. A. Xuan
Summary: Ceramic Bi1-xNdxFeO3 solid solutions with doping concentration ranging from 0.10 to 0.20 were prepared to investigate their structural evolution and magnetic properties. The study revealed a transition from polar rhombohedral to antipolar orthorhombic structures, along with the emergence of weak ferromagnetism at high doping concentrations due to the destruction of the cycloidal spin structure. Additionally, magnetic aging behavior at room temperature confirmed the contribution of phase boundary spins to the magnetic properties.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Lei Zhou, Guojian Jiang, Dandan Wu, Jianbing Chen
Summary: The powders of Bi1-xPrxFeO3 and Bi0.95Pr0.05Fe1-yMnyO3 were prepared by hydrothermal method, and the effects of Pr and Mn doping on the structure, morphology, magnetic, and photocatalytic properties of BFO were studied. The results show that doping with Pr and Mn can enhance the magnetic and photocatalytic performance of BFO.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Multidisciplinary Sciences
N. M. Basfer, Nuha Al-Harbi
Summary: Ce-doped cobalt-magnesium ferrite nanophotocatalysts prepared by the combustion approach show high efficiency in degrading harmful dyes. The hue of methylene blue can be faded from blue to nearly colorless with a degradation efficiency of 95.49% in 60 minutes.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Chemistry, Physical
Farha Jabeen, Raza Shahid, M. Shahid Khan, Raghvendra Pandey
Summary: Lead-free 0.7BiFeO(3)-0.3BaT(i1-x)Mn(x)O(3) ceramics were prepared by adding MnO2 and their structural, spectral, electrical, magnetic, and piezoelectric properties were investigated. The results showed that the addition of MnO2 significantly enhanced the electrical and piezoelectric properties of the ceramics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Shilpa Taneja, Deepika Chahar, Preeti Thakur, Atul Thakur
Summary: Bismuth doped Ni-Zn ferrites were synthesized through a citrate precursor method, displaying single phase cubic spinel structures with lattice strain variations. These materials exhibit highly resistive behavior and are suitable for high frequency applications, with changes in dielectric behavior observed with increasing bismuth concentration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Yuan Yao, I. A. Hrekau, D. I. Tishkevich, T. I. Zubar, V. A. Turchenko, Songtao Lu, M. V. Silibin, D. B. Migas, M. I. Sayyed, S. V. Trukhanov, A. V. Trukhanov
Summary: By using XRD, SEM, and VSM techniques, the correlation between the structure, composition, and magnetic properties of Bi-BaM was investigated. The phase transformation and magnetic behavior were observed at different substitution levels.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Niketa Bajpai, M. Saleem, Ashutosh Mishra
Summary: The report discusses the synthesis, structure, optical, magnetic, and electric properties of double perovskite manganites La2-xBixCoMnO6[x = 0.0, 0.1, 0.2]. The XRD, Raman, and FTIR analyses confirm the crystal structures, while electrical resistivity tests indicate semiconducting behavior. Room temperature magnetic measurements show low magnetic moment with linear behavior.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Rahimah Mustapa Zahari, Abdul Halim Shaari, Zulkifly Abbas, Ismayadi Ismail, Hussein Baqiah, Lim Kean Pah, Chen Soo Kien, Mohd Mustafa Awang Kechik
Summary: Synthesized BiFe1-xYxO3 ceramics with different Y concentrations showed structural phase transformations and enhanced magnetic properties. The highest microwave absorption properties were observed at x = 0.0.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Mahsa Sheykh Samani, Hassan Sharifi, Ibrahim Sharifi, Seyed Ali Erfani Mobarakeh, Taghi Isfahani
Summary: In this study, CuXMn1-XFe2O4 (X = 0, 0.05, 0.1, 0.15, and 0.2) ferrite nanoparticles were synthesized using reverse co-precipitation method, and the effects of different percentages of Cu2+ doping on the structural and magnetic properties of manganese ferrite nanoparticles were investigated. The microstructural evolutions, magnetic properties, bandgap, and dielectric properties of Cu-doped nanoparticles were evaluated using various techniques. The synthesized nanoparticles exhibited spherical and uniform morphology. The bandgap decreased with increasing copper content due to the integration of sub-bands with the conductive band and the presence of additional energy levels created by surface area and interfacial defects in the agglomerated nanoparticles. Additionally, the dielectric constant and dielectric loss showed frequency-dependent behavior.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Physical
Xueyun Zhou, Jun Wang, Dongsheng Yao
Summary: In this study, RE0.01Ni0.3Zn0.4Mn0.3Fe2O4 (RE=Fe, La, Nd, Sm, Gd, Dy, Yb) ferrites with precisely controlled composition were prepared. It was found that the lattice constant decreases with the increase of atomic number of rare earth. The infrared spectra showed changes in the tetrahedral and octahedral bonds. The introduction of rare earth slightly reduced the saturation magnetization and initial permeability, but had the same effect on Ms. These ferrites exhibited spin glass state or superparamagnetism at high temperature, and Sm, Gd, and Dy doped ferrites displayed unique dielectric properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
S. Bharathkumar, M. Sakar, S. Balakumar
Summary: In this study, BiFeO3 cubes were synthesized using egg white as a metal complex-forming agent. The synthesized cubes exhibited improved photocatalytic efficiency and stability compared to particles, making them suitable for durable photocatalytic degradation applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
L. Thansanga, Alok Shukla, Nitin Kumar, R. N. P. Choudhary
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2019)
Article
Crystallography
L. Thansanga, Alok Shukla, Nitin Kumar, R. N. P. Choudhary
Summary: The yttrium-modified bismuth ferrite ceramic compound has been synthesized and its various properties have been investigated thoroughly. The analysis of X-ray diffraction data confirmed the phase formation and structural change of the compound. Studies showed significant changes in dielectric and electrical parameters with Y-substitution at the Fe site.
Article
Materials Science, Multidisciplinary
L. Thansanga, Alok Shukla, Nitin Kumar, R. N. P. Choudhary
Summary: The study investigates the effect of Fe-site substitution of gadolinium (Gd) and yttrium (Y) on the structural, dielectric, electrical, and ferroelectric properties of bismuth ferrite (BiFeO3). Through X-ray diffraction analysis, it was found that the substitution led to a structural transformation from rhombohedral to orthorhombic symmetry, with a suppression of impurity phases in the bismuth ferrite. The average crystallite size of the modified bismuth ferrite was evaluated through Scherrer's relation, and the field emission scanning electron microscopy (FESEM) images confirmed the formation of high-quality samples with uniform grain distribution. The impedance analyzer data collected at different temperatures revealed significant changes in the dielectric, resistivity, and capacitive features of the materials, with potential implications for device applications.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
L. Thansanga, Alok Shukla, Nitin Kumar, R. N. P. Choudhary
Summary: Several research groups are currently working on synthesizing and characterizing doped bismuth ferrite to develop efficient and eco-friendly multifunctional devices. This report focuses on the detailed study of the structural, dielectric, impedance, and ferroelectric properties of Bi(Fe0.85Dy0.15)O-3 ceramic fabricated using the solid-state reaction method. The analysis reveals enhanced electrical and ferroelectric properties of the material, making it suitable for potential applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)