Article
Materials Science, Multidisciplinary
Amit Kumar, Piyush K. Patel, K. L. Yadav, Yogendra Singh, Naveen Kumar, Abdullah, G. Sharma, Satyendra Singh
Summary: The effect of grain boundary resistance (G(BR)) and grain resistance (G(R)) on the magnetoelectric coupling in multiferroic composite thick films of BiFeO3 (BFO) nanocrystalline powder and poly vinylidene-fluoride (PVDF) polymer is significant. The study shows that grain boundary resistance plays an important role in strengthening the magnetoelectric effect in the BFO-PVDF system, with the BFO50 sample demonstrating promising results for device and sensor applications.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Anchal Sharma, Puneet Negi, Ruhit Jyoti Konwar, Hemaunt Kumar, Yogita Verma, Shailja, Prakash Chandra Sati, Bhargav Rajyaguru, Himanshu Dadhich, N. A. Shah, P. S. Solanki
Summary: Pure and doped derivatives of TiO2 with nitrogen and cobalt as dopants were synthesized using auto-combustion sol-gel technique. The doping effects on the structural, optical, and electrical properties were investigated. The results showed that doping can tune the band gap of TiO2, making it suitable for photocatalytic and photovoltaic applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Joshua P. Smith, Kurt E. Sickafus, Claudia J. Rawn, Cordell Delzer, Ching-Fong Chen, Charles Melcher
Summary: Li-containing garnet compounds have potential as transparent ceramic dual-mode scintillators, with Li5La3Ta2O12 showing promise due to its properties. This study focused on establishing thermal processing conditions for a sol-gel method and consolidating powders to form high-density ceramics. The experiments showed the presence of two cubic Li5La3Ta2O12 garnet phases with different lattice parameters, indicating a remaining excess of Li in the ceramics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Shubhadip Atta, Monalisa Halder, Vikram Bharti, Ajit Kumar Meikap
Summary: This study reports on the influence of terbium-doped nickel ferrite particles on the dielectric and magnetic properties of polymeric nanocomposites. The findings show that adding a certain filler content (x = 0.3) significantly improves the permittivity of the polyvinylidene fluoride matrix. High filler loading decreases the blocking temperature and promotes hard ferrimagnetic characteristics. The low-temperature regions exhibit higher saturation magnetization, retentivity, coercivity, and wider hysteresis loop area. The lightweight Tb-NFO-PVDF nanocomposite film offers superior advantages for electromagnetic shielding applications.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
B. L. Choudhary, Namita Kumari, Jyoti Kumari, Arvind Kumar, S. N. Dolia
Summary: This paper discusses the relaxation mechanism at a lower temperature in the Ni0.5Zn0.5Fe2O4 sample prepared using the sol-gel method. The crystal structure and elemental composition were analyzed using XRD and EDAX techniques, revealing a decrease in magnetic domain size with increasing temperature and supporting relaxation at lower temperatures.
Article
Materials Science, Multidisciplinary
Anagha B. Patil, Rabi N. Panda
Summary: Nanostructured materials of CoVxFe2-xO4 (0.0 < x < 0.9) were synthesized using the sol-gel autocombustion method. The phase purity and nanocrystalline nature of the materials were confirmed by powder XRD measurements, while the morphology and microstructure were determined by FESEM technique. The crystallite sizes decreased from 30 nm to 8 nm with increasing V content, x, in CoVxFe2-xO4 materials. The lattice parameters also decreased continuously as a function of increasing V content, indicating the incorporation of vanadium in cobalt ferrite. The saturation magnetizations and coercivities of the materials showed a range of values depending on the V content and were influenced by factors such as cation distributions, size, and surface effects.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Biochemistry & Molecular Biology
Albena Bachvarova-Nedelcheva, Stancho Yordanov, Reni Iordanova, Irina Stambolova, Angelina Stoyanova, Nelly Georgieva, Veronica Nemska
Summary: TiO2 nanopowders modified by Nd and Sm were prepared using the sol-gel technique. Samples containing Sm were amorphous up to 300 degrees C, while those with Nd preserved a mixed organic-inorganic amorphous structure at higher temperatures. Samples heated at 500 degrees Celsius showed photocatalytic activity under UV irradiation and exhibited good antimicrobial activity against E. coli K12 and B. subtilis.
Article
Chemistry, Physical
Hamnesh Mahajan, Sachin Kumar Godara, A. K. Srivastava
Summary: This study synthesized MnxCo0.5-xZn0.5Fe2O4 using sol-gel auto combustion technique and characterized the samples with various techniques. It was found that the samples had nanoscale crystallite size, formed a spinel structure, and exhibited soft ferromagnetic nature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Physics, Multidisciplinary
P. Harshapriya, Pawandeep Kaur, Deepak Basandrai
Summary: La-Ag doped BiFeO3 nanoparticles were synthesized and their structural, morphological, magnetic, optical, and microwave absorption properties were investigated. The samples exhibited a perovskite rhombohedral structure along with a dilute phase of Bi2Fe4O9. The optical band gap decreased for La-Ag doped BFO compared to pure BFO. The crystals had an irregular shape and size. The vibrating sample magnetometer revealed increased magnetization and coercivity for La-Ag doped BFO. La-Ag doped BFO also showed improved electromagnetic interference shielding effectiveness.
CHINESE JOURNAL OF PHYSICS
(2023)
Article
Physics, Multidisciplinary
Umair Nissar, Javed Ahmad
Summary: This article investigates the A-site substituted double perovskite oxides (DPOs), synthesizing R2CoMnO6 (R = Nd, Y, Ho, and Er) DPOs using the auto-combustion sol-gel method. Various analyses were conducted, and the results showed that these DPOs possess diverse properties and potential applications, particularly in photovoltaic applications.
Article
Physics, Multidisciplinary
Anamika Kem, Mohd Rehan Ansari, P. Prathap, M. Jayasimhadri, Koteswara Rao Peta
Summary: Eco-friendly stable ZnO nanoparticles were successfully synthesized using citrus limon as a chelating agent. The structural and optical properties of the nanoparticles were studied at different annealing temperatures. The results showed that the particle size increased due to agglomeration or Ostwald ripening at high temperature, and the crystallite size and bandgap also increased slightly. The emission peaks of the nanoparticles were analyzed and attributed to the near band edge emission and the transition of electrons from traps to the valence band.
Article
Materials Science, Multidisciplinary
Shubhadip Atta, Monalisa Halder, Santanu Dey, Chandan Kumar Raul, Ajit Kumar Meikap
Summary: This study reports the dielectric and magnetocaloric effects in flexible Neodymium-doped nickel ferrite polyvinyl-alcohol nanocomposite films. The composite exhibits enhanced dielectric permittivity at a specific filler concentration, while the magnetic entropy change decreases with higher doping in the polymer chain. The magnetodielectric coefficient is enhanced at higher frequencies and with increased doping concentration. Additionally, the observed skin depth of the polymer nanocomposite is lower than the film's thickness, making it suitable for electromagnetic shielding.
CURRENT APPLIED PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Mekonnen Tefera Kebede, Sheela Devi, Babita Tripathi, Sunil Chauhan, Venus Dillu
Summary: In this study, Bi1-xCexFe1-xNixO3 (x = 0%, 4%, 6% and 8%) samples were synthesized using sol-gel method. The influence of Ce-Ni co-doping on the structural, vibrational, magnetic, optical and photocatalytic properties of the samples was systematically investigated. The results showed that Ce-Ni co-doping improved the ferromagnetic and photocatalytic properties of BiFeO3, and also enhanced the crystallinity of the samples.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Vitalii Ponomar
Summary: In this study, spinel ferrites with tunable magnetic properties were successfully synthesized by thermal treatment, and the changes in magnetization and Curie temperature were observed through different temperature treatments.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
A. Bandyopadhyay, B. J. Sarkar, S. Sutradhar, J. Mandal, P. K. Chakrabarti
Summary: By incorporating Gd3+ ions instead of Ce4+ ions in cerium oxide lattice, improvements were made in its magneto-dielectric properties. Nonlinearity due to magnetic ordering was introduced in the doped sample Ce0.90Gd0.10O2-delta, indicating a transition to ferromagnetic phase. Transmission electron microscopy study revealed important morphological behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Multidisciplinary
M. A. Almessiere, Y. Slimani, H. Gungunes, A. Demir Korkmaz, A. Baykal, A. V. Trukhanov, Ghulam Yasin
CHINESE JOURNAL OF PHYSICS
(2020)
Article
Materials Science, Biomaterials
S. Rehman, M. A. Almessiere, F. A. Khan, A. Demir Korkmaz, N. Tashkandi, Y. Slimani, A. Baykal
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2020)
Article
Environmental Sciences
Huseyin Tombuloglu, Yassine Slimani, Guzin Tombuloglu, Thamer Alshammari, Munirah Almessiere, Ayse Demir Korkmaz, Abdulhadi Baykal, Anna Cristina S. Samia
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Chemistry, Applied
Y. Slimani, M. A. Almessiere, A. Demir Korkmaz, A. Baykal, I Ercan
Summary: Tb and Tm substituted Sr-hexaferrites with varying compositions were synthesized using a citrate sol-gel approach. The magnetic and structural properties were studied, revealing different magnetic behaviors at different temperatures. This research provides new data support for the study of rare earth magnetic materials.
JOURNAL OF RARE EARTHS
(2021)
Article
Chemistry, Inorganic & Nuclear
M. A. Almessiere, Y. Slimani, S. Guner, S. Aldakhil, A. D. Korkmaz, M. Sertkol, H. Gungunes, Ghulam Yasin, A. Baykal
JOURNAL OF SOLID STATE CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
Y. Slimani, B. Unal, M. A. Almessiere, A. Demir Korkmaz, Sagar E. Shirsath, Ghulam Yasin, A. Trukhanov, A. Baykal
RESULTS IN PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
M. A. Almessiere, Y. Slimani, A. V. Trukhanov, A. Demir Korkmaz, S. Guner, S. Akhtar, Sagar E. Shirsath, A. Baykal, I. Ercan
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2020)
Article
Chemistry, Multidisciplinary
Munirah Abdullah Almessiere, Yassine Slimani, Hakan Gungunes, Ayse Demir Korkmaz, Tatiana Zubar, Sergei Trukhanov, Alex Trukhanov, Ayyar Manikandan, Fatimah Alahmari, Abdulhadi Baykal
Summary: In this study, [Ni0.4Cu0.2Zn0.4](Fe2-xDyx)O-4 spinel ferrite nanoparticles with different Dy3+ concentrations were synthesized using a citrate sol-gel auto-combustion technique. It was found that an increase in Dy3+ concentration led to changes in crystal structure parameters and slight alterations in particle size and specific surface area. Dy3+ ions preferentially occupied the octahedral B site due to their larger ionic radius, affecting the electrical and magnetic properties of the nanoparticles. Changes in microwave properties and electromagnetic absorption were attributed to the microstructure characteristics and the presence of dysprosium-oxygen-iron indirect exchange.
Article
Materials Science, Ceramics
M. A. Almessiere, Y. Slimani, M. Sertkol, H. Gungunes, Y. S. Wudil, A. Demir Korkmaz, A. Baykal
Summary: In this study, Gd3+-substituted nano-sized Sr-hexaferrite materials were successfully synthesized using a simplified chemical method. The structures and properties were extensively analyzed using various characterization techniques, revealing specific magnetic behaviors of the materials and optimization of magnetic properties within a certain substitution range.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
M. A. Almessiere, S. Guner, Y. Slimani, B. Rabindran Jermy, M. Sertkol, N. Taskhandi, A. Demir Korkmaz, A. Baykal
Summary: Structural, magnetic, and optical properties of hydrothermal gel synthesized Sm3+-Dy3+ co-substituted BaSr hexaferrite microspheres were studied, revealing variations in characteristics at different temperatures.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
M. A. Almessiere, Y. Slimani, H. Gungunes, A. Demir Korkmaz, S. V. Trukhanov, S. Guner, F. Alahmari, A. V. Trukhanov, A. Baykal
Summary: Dy3+ ion-substituted nanoferrites were synthesized via sol-gel method, and their chemical composition, crystal structure, electrical, magnetic, and microwave properties were investigated. The samples exhibited a single-phase state with a decrease in average crystallite size and a superparamagnetic character at room temperature. Microwave properties were discussed in terms of electromagnetic absorption in the frequency range of 1-20 GHz.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Physical
M. A. Almessiere, S. Guner, Y. Slimani, A. Baykal, Sagar E. Shirsath, A. Demir Korkmaz, R. Badar, A. Manikandan
Summary: Dy3+ and Y3+ ions co-doped Zn0.5Mn0.5Fe2O4 nanoparticles were synthesized through an ultrasonication approach to tune their structural and magnetic properties. The influence of the co-doping on the structural and magnetic characteristics was analyzed by X-ray diffraction and electron microscopy, showing changes in crystal structure and size.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Engineering, Electrical & Electronic
H. Erdemi, M. A. Almessiere, Y. Slimani, A. Demir Korkmaz, A. Baykal, A. Ul-Hamid
Summary: In this study, unique Mn0.5Zn0.5ErxYxFe1.8-2xO4 SFNPs were synthesized using ultrasonication (sonochemical) approach. The electrical and dielectric features of these SFNPs were comprehensively examined, and it was found that their conductivity and dielectric properties can be adjusted by the co-substitutional ratios of Er3+ and Y3+ ions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Munirah A. Almessiere, Yassine Slimani, Norah A. Algarou, Maksim G. Vakhitov, Ayse Demir Korkmaz, Abdulhadi Baykal, Denis S. Klygach, Tatiana I. Zubar, Anwar Ul-Hamid, Sergei V. Trukhanov, Alex V. Trukhanov
Summary: SrInxFe12-xO4/Ni0.5Zn0.5Fe2O4 (0.00 <= x <= 0.04) nanocomposites (SIFO/NZFO NCs) were synthesized using a one-pot sol-gel auto-combustion technique. The impact of indium doping on the magnetic properties of the nano-composites was investigated, and it was found that the saturation magnetization, remanence magnetization, and coercive field showed a non-monotonic dependence on the indium content.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Selin Piravadili Mucur, Betul Canimkurbey, Ayse Demir Korkmaz
LIGHT & ENGINEERING
(2020)
