Article
Materials Science, Ceramics
Yan Yang, Jie Li, Huaiwu Zhang, Jun Li, Fang Xu, Gang Wang, Feng Gao, Haokai Su
Summary: In this study, Ni0.29Cu0.18Zn0.53NbxFe2-xO4 (x = 0.00-0.05) ferrites with high saturation magnetization, appropriate initial permeability, high cut-off frequency and low ferromagnetic resonance linewidth were synthesized by low-temperature firing. The results showed that Nb5+ ion substitution played a significant role in producing compact and uniform microstructures, enhancing the magnetic and gyromagnetic properties. The enhanced properties include high initial permeability, saturation magnetization and low ferromagnetic resonance linewidth.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Sachin Kumar Godara, Ashwani Kumar Sood, Shilpi, Arun Kumar, Varinder Kaur, Parambir Singh Malhi, Mandeep Singh, Swati Verma, Khalid Mujasam Batoo
Summary: This study reports the synthesis of BaZn0.2Zr0.2Fe11.6O19 hexaferrite nanoparticles through the sol-gel auto-combustion route using tartaric acid as fuel. The optimal tartaric acid to metal nitrate ratio was found to be 1.00, and the materials showed potential for microwave absorber and magnetic recording applications.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Condensed Matter
Hem Raj Sharma, Khalid Mujasam Batoo, R. Neffati, Pooja Dhiman, Sumit Bhardwaj, Pankaj Sharma, Sajjad Hussain, Indu Sharma, Rahul Goel, Gagan Kumar
Summary: Al-doped Mn ferrite nanoparticles were synthesized by solution combustion method, and the effects of Al3+ ions substitution on the structural, optical, electrical and magnetic properties were investigated. The results showed that Al3+ ion doping influenced the structural parameters, FTIR spectra and magnetic properties of the synthesized samples.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Ceramics
Sachin Kumar Godara, Mandeep Singh, Varinder Kaur, S. B. Narang, Ashwani Kumar Sood
Summary: In this study, Ba1-xCaxFe12O19 samples were synthesized using sol-gel auto-combustion method, with the maximum calcium solubility observed at 1200 degrees C. The XRD data showed a decrease in lattice parameters and cell volume with increasing 'x', while FESEM images revealed an increase in particle size. Magnetic measurements indicated that the highest saturation magnetization was found in the x = 0.50 sample, with a decrease in coercivity as 'x' increased.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Zeenat Jabeen, Asadullah Dawood, Muneerah Alomar, Salman Naeem Khan, Ihsan Ali, Muhammad Asif, Waseem Abbas, Muhammad Sultan Irshad, Mukhtar Ahmad
Summary: A series of single-phase nickel-substituted magnesium spinel ferrites were synthesized using the hydrothermal technique, and their morphology, structure, magnetism, and electrochemical properties were investigated. Experimental characterization techniques confirmed the presence of a single-phase spinel structure, with a decrease in lattice parameter and clustering of nanoparticles as nickel concentration increased. Raman and FTIR spectra indicated changes in wave numbers and the shortening of Fe-O bonds. Additionally, the ferrites exhibited increased saturation magnetization, decreased coercivity, decreased specific capacitance, and increased loop size. These ferrites are promising for energy storage applications.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Inorganic & Nuclear
Rentapalli Vijaya Bharathi, M. K. Raju, Susmitha Uppugalla, Vemuri Raghavendra, D. Parajuli, B. Suryanarayana, S. Yonatan Mulushoa, N. Murali, K. Samatha
Summary: Cu2+ substituted Mg0.5Co0.5Fe2O4 ferrite materials were synthesized using a solid-state reaction method, and their structural, magnetic, and electrical properties were studied. The materials were characterized using XRD, SEM, FTIR, VSM, and DC electrical resistivity apparatus. The XRD patterns showed a single cubic phase and a decrease in lattice constant with increasing copper concentration. The SEM images revealed spherical and polyhedral-shaped grains with agglomerations. The FTIR spectra indicated the nature of ferrite. The VSM study showed soft ferromagnetic behavior, and the DC resistivity exhibited a semiconductor nature with increased Cu2+ concentration.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Khalid Muajsam Batoo, Muhammad Hadi, Ritesh Verma, Ankush Chauhan, Rajesh Kumar, Mahavir Singh, Omar M. Aldossary
Summary: This study reports the synthesis of Ba-doped Co-Zn ferrite nanoparticles using the sol-gel auto combustion technique. Various analytical methods were used to confirm the structure, chemical purity, and physical properties of the samples. The findings showed changes in crystallite size, lattice parameter, magnetic properties, and EMI shielding effectiveness with increasing dopant concentration.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Galina Kozhina, Valentin Mitrofanov, Olga Fedorova, Andrey Fetisov, Aidar Murzakaev, Svetlana Estemirova
Summary: Nanograin polycrystalline Nd1-xCaxMnO3 +/-delta (x = 0; 0.15; 0.25) with orthorhombic structure were obtained by mechanical activation with an average crystallite size of 10-30 nm. Grain growth was found to be kinetically hindered in Ca-doped compositions despite the lower activation energy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Hemant Kumar Dubey, Preeti Lahiri
Summary: Cadmium-substituted manganese ferrite nanoparticles were synthesized using the citrate-gel auto combustion method. The nanoparticles exhibited a cubic phase spinel structure, with elemental composition and magnetic properties characterized by various techniques. The results showed that the nanoparticles displayed ferromagnetic behavior and exhibited unique structural and magnetic properties.
MATERIALS TECHNOLOGY
(2021)
Article
Engineering, Chemical
Saba Mosivand
Summary: This study investigated the influence of different inorganic additives on the structure and magnetization of magnetite nanoparticles. Results showed that variations in additive concentrations can significantly alter the structure and magnetization properties of the samples, and that the addition of potassium chloride in the electrochemical cell can improve the structure and magnetization of particles.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Evgeny A. Gorbachev, Vasily A. Lebedev, Ekaterina S. Kozlyakova, Liudmila N. Alyabyeva, Asmaa Ahmed, Antonio Cervellino, Lev A. Trusov
Summary: Double substitution of strontium hexaferrite by calcium and aluminum greatly enhances its hard magnetic properties, but these properties are also closely related to the material microstructure, solid solution inhomogeneity, and aluminum ions distribution. In this study, M-type hexaferrite particles with varying aluminum content were synthesized through a simple method and the effects of annealing temperature on microstructure, crystal structure features, and hard magnetic properties were investigated. The annealing temperature influenced the particle size, chemical composition, and coercivity. The hexaferrites with narrow chemical distribution exhibited resonance absorption in the sub-terahertz band, with the highest NFMR frequency observed at x = 5.5 sample annealed at 1400°C.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Applied
Manish Kumar Bharti, Sonia Chalia, Preeti Thakur, Atul Thakur
Summary: Doping lanthanum ions in Mn-Zn-Cd nanoferrites alters the crystal structure, grain size, and magnetic properties, resulting in changes in dielectric constant and permeability.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2021)
Article
Chemistry, Physical
Simi Debnath, Ratan Das
Summary: PVP capped nickel ferrite nanocrystals (NFN) and cobalt doped nickel ferrite nanocrystals (CNFN) were successfully prepared using thermal heat treatment method, followed by sintering at 700 degrees C. The synthesized nanocrystals were analyzed through XRD, TEM and SEM to study their structural, morphological and magnetic properties. The study showed increase in saturation magnetization and coercivity values with Co doping in NFN, indicating potential applications in memory devices, magnetic recording media and adsorption of toxic materials in water.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Neetu Dhanda, Sonam Kumari, Rakesh Kumar, Dinesh Kumar, An-Cheng Aidan Sun, Preeti Thakur, Atul Thakur
Summary: Nickel-substituted cobalt ferrite nanoparticles were synthesized and characterized. The nanoparticles exhibited a cubic spinel ferrite structure and their magnetic properties were determined. With the increase in nickel doping concentration, the crystallite size and lattice parameters decreased, and the saturation magnetization, remanence magnetization, and coercivity of the nanoparticles decreased as well. These findings suggest that the prepared nanoparticles can be used for data storage device applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
O. Amorri, M. Khalfa, A. Oueslati, K. Khirouni, A. Aydi, E. Dhahri
Summary: Spinel lithium ferrites, such as Li0.2Cu0.8Fe2O4-d, have been extensively studied due to their technological applications. In this study, Li0.2Cu0.8Fe2O4-d ferrite with a cubic spinel structure was synthesized by the solid-state method, and the effect of copper incorporation was investigated. The results revealed the presence of asymmetrical agglomerations of grains and significant contributions of grains and grain boundaries. The sample exhibited Cole-Cole relaxation type behavior, dispersive AC conductivity variation, and hopping conduction explained by correlated barrier-hopping and nonoverlapping small polaron tunneling mechanisms. Polarization effect, band gap of 1.47 eV, and ferromagnetic behavior were also observed.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Vladimir E. Zhivulin, Evgeniy A. Trofimov, Svetlana A. Gudkova, Igor Yu Pashkeev, Alexander Yu Punda, Maksim Gavrilyak, Olga Zaitseva, Sergey Taskaev, Fedor Podgornov, Moustafa A. Darwish, Munirah A. Almessiere, Yassine Slimani, Abdulhadi Baykal, Sergei Trukhanov, Alex Trukhanov, Denis A. Vinnik
Summary: La-, Nd- and La/Nd-based polysubstituted high-entropy oxides were prepared by solid-state reactions, with their chemical composition correlating well with initial calculated stoichiometry. The electrical and magnetic properties were investigated, showing the dependence of particle size on chemical composition and the observation of spin subsystem states.
Article
Chemistry, Inorganic & Nuclear
V. E. Zhivulin, O. Zaitseva, E. A. Trofimov, N. S. Zabeivorota, M. Gavrilyak, F. Podgornov, D. A. Vinnik, M. A. Almessiere, Y. Slimani, A. Baykal, K. A. Astapovich, A. Trukhanov
Summary: The electrical and dielectric properties of the barium hexaferrite single crystal BaFe11.25Ti0.75O19 were found to strongly depend on the crystallographic direction, with the electrical conductivity differing by 8 orders of magnitude along different crystallographic axes. The direction of crystallographic axis C (axis of easy magnetization) was shown to influence the conductivity depending on frequency, highlighting the importance of considering both chemical composition and cutting direction for material properties in further technology development.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
D. A. Vinnik, V. V. Kokovkin, V. V. Volchek, V. E. Zhivulin, P. A. Abramov, N. A. Cherkasova, Zhipeng Sun, M. I. Sayyed, D. I. Tishkevich, A. V. Trukhanov
Summary: Two series of ferrite-based materials were synthesized and evaluated for their catalytic activity using thermodynamic and electrokinetic approaches. The results showed that different types of ferrites exhibited varying oxygen evolution reaction activities.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
L. N. Alyabyeva, A. S. Prokhorov, D. A. Vinnik, V. B. Anzin, A. G. Ahmed, A. Mikheykin, P. Bednyakov, C. Kadlec, F. Kadlec, E. de Prado, J. Prokleska, P. Proschek, S. Kamba, A. Pronin, M. Dressel, V. A. Abalmasov, V. V. Dremov, S. Schmid, M. Savinov, P. Lunkenheimer, B. P. Gorshunov
Summary: Hexaferrites are garnering more attention for developing electronic components in next-generation communication systems due to their exceptional dielectric and magnetic properties. Lead-substituted barium hexaferrite was studied to explore its electromagnetic properties, revealing a range of physical phenomena and a ferroelectric-like terahertz excitation. The discovered radio-frequency relaxations and gigahertz resonances in the material provide valuable information for manufacturing electronic devices for the terahertz range.
NPG ASIA MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Daria Tishkevich, Alla Vorobjova, Dmitry Shimanovich, Egor Kaniukov, Artem Kozlovskiy, Maxim Zdorovets, Denis Vinnik, Andrei Turutin, Ilya Kubasov, Alexander Kislyuk, Mengge Dong, M. Sayyed, Tatiana Zubar, Alex Trukhanov
Summary: High-quality and compact arrays of Ni nanowires with a high ratio were successfully obtained by DC electrochemical deposition into porous anodic alumina membranes. The magnetic properties of the nanowires depend on their length and packing factor. Additionally, the magnetostatic interaction between ultra-long nanowires can lead to a curling-type behavior during a reversal magnetization state.
Article
Chemistry, Physical
Zeljko Rapljenovic, Nikolina Novosel, Damir Dominko, Virna Kisicek, David Rivas Gongora, Duro Drobac, Mladen Prester, Denis Vinnik, Liudmila N. Alyabyeva, Boris P. Gorshunov, Tomislav Ivek
Summary: This study presents the frequency-dependent magnetic susceptibility and dc electric transport properties of three different compositions of hexaferrite Ba1-xPbxFe12-yAlyO19 single crystals. The correlation between the activation energies of the dc electric transport and the ac magnetic susceptibility is found to persist over the entire studied range of aluminum substitution y = 0-3.3, pointing toward a general relaxation mechanism in ferrimagnetic semiconductors that directly affects the dynamic magnetic properties via electrical transport.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Asmaa Ahmed, Anatoly S. Prokhorov, Vladimir Anzin, Denis Vinnik, Sergey A. Ivanov, Adam Stash, Y. S. Chen, Alexander Bush, Boris Gorshunov, Liudmila Alyabyeva
Summary: This study investigates the terahertz and infrared dielectric response of lead-substituted M-type hexaferrite doped with aluminum. The effect of aluminum substitution on the dielectric response is explored. The study provides insights into the resonance absorption bands and the substitution behavior of aluminum ions in the crystal structure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Ahmad Ostovari Moghaddam, Dmitry Mikhailov, Rahele Fereidonnejad, Nataliya Shaburova, Denis Vinnik, Daniil Uchaev, Fu-Quan Bai, Dawid Janas, Evgeny Trofimov
Summary: High entropy intermetallic compounds (HEICs) are a new type of high entropy materials (HEMs) with the potential to exhibit unusual properties. Several HEICs were successfully fabricated using a melting technique, showing different crystal structures, microstructures, and mechanical properties. One HEIC achieved the highest microhardness value reported for an as-cast metallic HEM. These findings contribute to the expedited discovery of new single-phase HEICs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
L. Alyabyeva, E. Zhukova, S. Zhukov, A. Ahmed, D. Vinnik, B. Gorshunov
Summary: First detailed measurements of temperature-dependent and broad-band spectra of complex permittivity of single-crystalline barium-lead hexaferrites Ba1-xPbxFe12O19 were performed. The effect of Ba for Pb substitution on electrodynamic response was studied. The tunability of terahertz characteristics of hexaferrites makes them promising materials for designing devices operating at terahertz frequencies.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Nanoscience & Nanotechnology
Olga V. Zaitseva, Evgeny A. Trofimov, Vladimir E. Zhivulin, Ahmad Ostovari Mogaddam, Olga V. Samoilova, Ksenia S. Litvinyuk, Alena R. Zykova, Dmitry V. Mikhailov, Svetlana A. Gudkova, Denis A. Vinnik
Summary: The aim of this study is to synthesize high-entropy oxides with the magnetoplumbite structure using the Pb cation as a divalent metal cation. The synthesis conditions were optimized to obtain single-phase samples with the desired structure. The resulting high-entropy oxides have a chemical composition represented by the formula PbFe2.4X2.4Y2.4Ga2.4In2.4O19, and a particle size of approximately 100 nm, showing potential for various applications. The study also investigated the effect of preliminary grinding of the initial components and proposed a synthesis mechanism. These findings open up new possibilities for the synthesis and characterization of high-entropy oxides with the magnetoplumbite structure, expanding the control over ceramic magnetic materials.
NANOSYSTEMS-PHYSICS CHEMISTRY MATHEMATICS
(2023)
Article
Physics, Particles & Fields
D. S. Vinnik, A. A. Krylov, A. A. Morsin, Sh R. Singatulin, K. N. Khomyakov
Summary: A thyristor switch has been developed for powering quadrupole lenses in the Booster-Nuclotron transport channel, with data presented on a switching current up to 500 A. The time stability of the switch has been studied using a prototype, indicating its potential for use in other pulsed power supplies of magnetic lenses in accelerators.
PHYSICS OF PARTICLES AND NUCLEI LETTERS
(2021)
Article
Materials Science, Biomaterials
Maxim A. Zakharzhevskii, Elizaveta I. Anastasova, Daniil V. Kladko, Artur Y. Prilepskii, Maria N. Gorshkova, Denis A. Vinnik, Sergey V. Taskaev, Vladimir V. Vinogradov
Summary: Thrombosis-related diseases are the deadliest disorders, but significant progress has been made in the development of nanostructured thrombolytics, especially magnetically controlled ones. This study introduces the concept of magnetic-field mediated mechanically-assisted thrombolysis (MFMMAT) for the first time, showing promising results in improving clot lysis efficacy and potentially unveiling new possibilities for deep venous thrombosis therapy.
JOURNAL OF MATERIALS CHEMISTRY B
(2021)
Article
Engineering, Electrical & Electronic
Denis A. Vinnik, Andrey Yu Starikov, Vladimir E. Zhivulin, Kseniya A. Astapovich, Vitaliy A. Turchenko, Tat'yana Zubar, Sergei Trukhanov, Jaroslav Kohout, Tomas Kmjec, Olena Yakovenko, Lyudmila Matzui, Antonio Sergio B. Sombra, Di Zhou, Rajshree B. Jotania, Charanjeet Singh, Yujie Yang, Alex Trukhanov
Summary: BaFe12-xTixO19 hexaferrites were synthesized using a conventional ceramic method, and their crystal structure parameters, magnetic properties, and ac resistivity were studied. The occupation mechanism of titanium cations was confirmed, and it was found that with increasing titanium concentration and temperature, magnetic and ac resistivity values decreased monotonically, while the real part of permittivity increased with temperature.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
D. A. Vinnik, V. E. Zhivulin, D. P. Sherstyuk, A. Yu. Starikov, P. A. Zezyulina, S. A. Gudkova, D. A. Zherebtsov, K. N. Rozanov, S. V. Trukhanov, K. A. Astapovich, A. S. B. Sombra, D. Zhou, R. B. Jotania, C. Singh, A. V. Trukhanov
Summary: Zn1-xNixFe2O4 ferrites were synthesized using solid state reactions and the sol-gel autocombustion technique, with the obtained samples exhibiting a spinel structure. The magnetic characteristics, Curie point variation, and electrical properties were determined for different compositions, showing a decrease in unit cell parameters with increasing nickel concentration. The composite samples with paraffin wax showed significant reductions in permeability.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
