Article
Mechanics
Chien-hong Lin, Ying-Zhao Lin
Summary: Two micromechanical formulations were established for analyzing nonlinear magnetoelectric coupling in composite materials with different connectivities. The study showed that the magnetoelectric coupling in the composites can be modulated by the connectivity and constituent proportion, and the field-dependent magnetoelectric responses lead to significant differences between linear and nonlinear predictions.
COMPOSITE STRUCTURES
(2021)
Article
Instruments & Instrumentation
Ning Xiao, Yao Wang, Lei Chen, Yumei Wen, Guoqiang Wang, Ping Li, Rui Xiao, Xiaojun Ji, Tao Han
Summary: The study introduces a nonlinear equivalent circuit model to design a new ME composite with improved sensitivity to dc and low-frequency magnetic fields, as well as a wider bandwidth, under dual ac magnetic field and stress modulation. The theoretical predictions are supported by experimental results, showing the potential for a new ME magnetometer with low power consumption and high sensitivity.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Chemistry, Physical
Chaeyoung Nam, Yujin Na, Sung Cheol Park, Hyunseung Kim, Chang Kyu Jeong, Geon-Tae Hwang, Kwi-Il Park
Summary: In response to the demand for wearable devices, a flexible magnetoelectric composite based on a 2-2 structure was developed for wearable magnetic devices. By conducting simulations and theoretical analysis, it was found that higher concentrations of CFO could generate higher magnetoelectric signals. This study provides a new avenue for wearable magnetoelectric energy harvesting.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Physics, Condensed Matter
Mirza I. Bichurin, Oleg V. Sokolov, Viktor S. Leontiev
Summary: The magnetoelectric (ME) effect is being extensively studied, but the main challenge in designing new ME devices is evaluating and selecting the appropriate ME composite and calculating its ME voltage coefficients. To simplify this calculation, a method known as nomograms is introduced in this study. The article presents a detailed method for obtaining the ME voltage coefficients of two ME composites, demonstrating that the nomogram method allows for quicker and easier determination with considerable accuracy compared to the general method.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2022)
Article
Physics, Multidisciplinary
Nie Chang-Wen, Wu Han-Zhou, Wang Shu-Hao, Cai Yuan-Yuan, Song Shu, Sokolov Oleg, M. Bichurin, Wang Yao-Jin
Summary: The magnetoelectric voltage tunable inductor (ME-VTI) modulates the inductance based on the magnetoelectric effect, with advantages such as low energy consumption, small size, large tunability, and continuity. Research has shown that by studying the influence of field-induced strain in piezoelectric materials, it is possible to enhance the tunability of inductors, offering a new approach for the development of integrated and miniaturized devices.
ACTA PHYSICA SINICA
(2021)
Article
Engineering, Electrical & Electronic
Pradeep Chavan
Summary: Lead-free magnetoelectric composites composed of NiFe2O4 and BaZr0.2 Ti0.8O3 were synthesized and studied for their structural, electric, dielectric, magnetic, and ME properties. The composites exhibited semiconductor behavior and polaron hopping conduction mechanism in frequency dependent dielectric spectra. Magnetic measurements showed soft magnetic behavior with M-H hysteresis, and the composite with both ferrite and ferroelectric phases had the highest ME voltage coefficient. Overall, these ME composite materials show great potential for multifunctional device applications without lead.
SOLID-STATE ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Shahaji P. Kharat, Swati K. Gaikwad, Bharat G. Baraskar, Debabrata Das, R. C. Kambale, Y. D. Kolekar, C. V. Ramana
Summary: The research investigates magnetoelectric composites made of lead-free ferroelectric phase BaZr0.2Ti0.8O3-0.5Ba0.7Ca0.3TiO3(BZT-BCT) and magnetostrictive phase Co0.8Fe(2.2-x)DyxO4 (CFDO). The properties and performance of the composites are evaluated by varying the CFDO phase concentration. The results show that these composites have potential applications in electromagnetic devices and energy harvesting.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Materials Science, Composites
Dmitry Filippov, Ying Liu, Peng Zhou, Bingfeng Ge, Jiahui Liu, Jitao Zhang, Tianjin Zhang, Gopalan Srinivasan
Summary: A model for the low-frequency magnetoelectric effect that considers bending deformation in a ferromagnetic and ferroelectric bilayer is proposed. The study obtained expressions for the ME voltage coefficients and ME sensitivity coefficients based on elastic theory and electrostatics equations. Results indicate that the contribution from bending deformation is significant but smaller than planar deformations, leading to a reduction in the net ME coefficients.
JOURNAL OF COMPOSITES SCIENCE
(2021)
Article
Acoustics
Fushi Bai, Liang Wang, Kunde Yang, Zhengyao He, Gang Qi, Jens Twiefel
Summary: This study focused on the application of ultrasonic cavitation peening on metal specimens. By using a V-shaped traveling wave piezoelectric vibrating system, an even performance on a cylindrical surface could be achieved upon single treatment, with emphasis on the effects of tangential vibration on cavitation intensity and distribution. Through numerical simulation and experimentation, it was found that after ultrasonic cavitation peening treatment, the micro hardness of cylindrical workpiece surfaces significantly increased.
Article
Acoustics
Fushi Bai, Liang Wang, Kunde Yang, Zhengyao He, Chengyang Xue, Jens Twiefel
Summary: This paper proposes a new V-shaped traveling wave transducer for high efficiency ultrasonic cavitation treatment on axis components, generating efficient elliptical vibrations using two Langevin transducers on a ring sonotrode. Experimental results show that using this novel transducer can improve the effectiveness of ultrasonic cavitation treatment, with higher voltage and smaller working gap being beneficial for the treatment.
Article
Ecology
Mehedi Hasan Mandal, Benojir Yasmin, Arindam Roy, Subhendu Ghosh, Giyasuddin Siddique
Summary: This study assesses the avifaunal habitability status of wetlands in the Ganges delta using the Avifaunal Habitability Index (AHI). The results show that some wetlands have higher avifaunal habitability, while others are in a perceptibly deteriorated state. The study also examines the spatial variation of habitability status using the Wetland Threat Index (WTI) and wetland size. It is found that wetlands with less threat and larger size tend to have healthier habitats. This research not only categorizes floodplain wetlands based on AHI, but also addresses the spatial pattern and determinants of habitability status in the Ganges delta.
Article
Ecology
Ayan Paul, Nabakumar Ghosh, Sabyasachi Bhattacharya
Summary: Sibly et al. (2005) described the fundamental characteristic of most species to follow theta-logistic growth trait with a convex downward trend. They built a deterministic model but realized that external noise is inevitable in any growth system. They then introduced a stochastic analog model in both the discrete and continuous setup. Bifurcation analysis of the discrete model showed that chaotic regime increases with noise intensity. The study also provided a critical value of noise intensity for the continuous version and classified species based on environmental sensitivity using data from four taxonomic groups. Simulation predictions suggested a negligible extinction probability for the considered bird species.
THEORETICAL ECOLOGY
(2022)
Article
Multidisciplinary Sciences
A. G. Zubov
Summary: Magnetostratigraphy is gaining popularity among geologists worldwide and plays a significant role in stratigraphic studies. This article reviews its importance and discusses various issues related to developing a magnetostratigraphic scale and improving the quality of paleomagnetic data.
UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI
(2022)
Article
Materials Science, Multidisciplinary
V. Petrov, A. Tatarenko, M. Bichurin, A. Saplev
Article
Chemistry, Analytical
Mirza I. Bichurin, Roman V. Petrov, Viktor S. Leontiev, Oleg V. Sokolov, Andrei V. Turutin, Victor V. Kuts, Ilya V. Kubasov, Alexander M. Kislyuk, Alexander A. Temirov, Mikhail D. Malinkovich, Yuriy N. Parkhomenko
Article
Nanoscience & Nanotechnology
Nana Yang, Hanzhou Wu, Shidong Wang, Guoliang Yuan, Ji Zhang, Oleg Sokolov, M. I. Bichurin, Ke Wang, Yaojin Wang
Summary: The ever-evolving advances in flexible magnetic sensor technology offer hope for the development of touchless human-machine interaction, implantable medical diagnosis, and magnetoreception for artificial intelligence. However, achieving highly flexible and extremely sensitive magnetic sensors remains a challenge. A cost-effective, flexible, and ultra-sensitive heterostructural magnetoelectric sensor has been reported, demonstrating high sensitivity and excellent mechanical endurance.
Article
Chemistry, Physical
Hanzhou Wu, Alexander Tatarenko, M. Bichurin, Yaojin Wang
Summary: The use of multiferroic energy harvesting module can efficiently convert mechanical energy into electricity, addressing the limited lifespan and periodic recharging issues of conventional batteries. The module demonstrates high efficiency in mechano-magneto-electric energy conversion under human running motion, providing a sustainable power source for personal electronic devices.
Review
Chemistry, Analytical
Mirza Bichurin, Roman Petrov, Oleg Sokolov, Viktor Leontiev, Viktor Kuts, Dmitry Kiselev, Yaojin Wang
Summary: The magnetoelectric (ME) composites have properties associated with the transformation of electric polarization/magnetization under the influence of external magnetic/electric fields, making them promising for various applications, particularly in the field of magnetic field sensors where their high sensitivity is comparable to superconducting quantum interference devices (SQUIDs).
Article
Physics, Condensed Matter
Mirza I. Bichurin, Oleg V. Sokolov, Viktor S. Leontiev
Summary: The magnetoelectric (ME) effect is being extensively studied, but the main challenge in designing new ME devices is evaluating and selecting the appropriate ME composite and calculating its ME voltage coefficients. To simplify this calculation, a method known as nomograms is introduced in this study. The article presents a detailed method for obtaining the ME voltage coefficients of two ME composites, demonstrating that the nomogram method allows for quicker and easier determination with considerable accuracy compared to the general method.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2022)
Article
Chemistry, Analytical
Mirza Bichurin, Oleg Sokolov, Sergey Ivanov, Viktor Leontiev, Dmitriy Petrov, Gennady Semenov, Vyacheslav Lobekin
Summary: The article discusses the physical foundations of the linear magnetoelectric (ME) effect in low-frequency composites, focusing on the symmetric and asymmetric composite structures in quasi-static and resonant modes. Various modes, including longitudinal, bending, shear, and torsional modes, are considered in the electromechanical resonance (EMR) region. The article provides theoretical expressions for ME voltage coefficients and compares experimental results for some composites.
Article
Chemistry, Physical
Hanzhou Wu, Shifeng Fu, Shuhao Wang, Han Pan, Bingting Zha, Anran Gao, Ling Li, Zhen Liu, Lisha Liu, Jie Jiao, M. Bichurin, Oleg Sokolov, Yaojin Wang
Summary: Electrical safety is a significant concern worldwide, and the development of current sensors plays a crucial role in monitoring and maintaining system health.
Article
Chemistry, Analytical
Mirza Bichurin, Oleg Sokolov, Sergey Ivanov, Elena Ivasheva, Viktor Leontiev, Vyacheslav Lobekin, Gennady Semenov
Summary: This article investigates the FMR line shift in an electric field for different ferromagnetic metals, alloys, and YIG ferrite using various piezoelectrics. The study identifies the ME structures with maximum and minimum microwave ME effects and discusses the substrate effect in the piezoelectric YIG-GGG structure.
Article
Physics, Applied
Shifeng Fu, Jiawei Cheng, Tao Jiang, Hanzhou Wu, Ze Fang, Jie Jiao, Oleg Sokolov, Sergey Ivanov, Mirza Bichurin, Yaojin Wang
Summary: The rapid surge in research on very low frequency (VLF) antennas is driven by the demand for radio navigation and special environment communications. Magnetoelectric (ME) antennas have proven to be a potential solution for miniaturizing VLF communication systems. However, the essential magnetic bias fields pose challenges for ME antenna application. This study presents a bias-free VLF ME antenna based on a magneto-gradient ME composite that shows promising results in terms of miniaturization and modulation.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Mirza Bichurin, Oleg Sokolov, Sergey Ivanov, Elena Ivasheva, Viktor Leontiev, Vyacheslav Lobekin, Gennady Semenov
Summary: This article presents a general theory of the ME effect in composites in the low- and high-frequency ranges, with a focus on electromechanical resonance in various modes. The theory is demonstrated through experimental comparison and analysis of symmetric and asymmetric layered structures. Additionally, the article discusses the main microwave ME effect in ferromagnetic metals, alloys, and YIG ferrite using different piezoelectric materials.
Article
Physics, Multidisciplinary
Nie Chang-Wen, Wu Han-Zhou, Wang Shu-Hao, Cai Yuan-Yuan, Song Shu, Sokolov Oleg, M. Bichurin, Wang Yao-Jin
Summary: The magnetoelectric voltage tunable inductor (ME-VTI) modulates the inductance based on the magnetoelectric effect, with advantages such as low energy consumption, small size, large tunability, and continuity. Research has shown that by studying the influence of field-induced strain in piezoelectric materials, it is possible to enhance the tunability of inductors, offering a new approach for the development of integrated and miniaturized devices.
ACTA PHYSICA SINICA
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
M. Bichurin, O. Sokolov, A. S. Tatarenko, V. N. Lobekin, S. N. Ivanov, V. S. Leontiev, A. Turutin
2020 7TH ALL-RUSSIAN MICROWAVE CONFERENCE (RMC)
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Viacheslav Lobekin, Alexandr Tatarenko, Roman Petrov, Mirza Bichurin
2019 PHOTONICS & ELECTROMAGNETICS RESEARCH SYMPOSIUM - SPRING (PIERS-SPRING)
(2019)
Article
Materials Science, Multidisciplinary
A. Yu. Zakharov, M. I. Bichurin
