Article
Chemistry, Physical
A. Plyushch, D. Lewin, A. Sokal, R. Grigalaitis, V. V. Shvartsman, J. Macutkevic, S. Salamon, H. Wende, K. N. Lapko, P. P. Kuzhir, D. C. Lupascu, J. Banys
Summary: Bulk BaTiO3-xCoFe2O4 (x = 0.1 - 0.6) magnetoelectric composites with high purity and excellent dielectric and magnetic properties were prepared using the phosphate bonded ceramics approach. The dielectric properties were influenced by composition-dependent relaxations and anomalies at different frequencies, while the magnetic properties were limited by the size of CoFe2O4 particles. The measured direct magnetoelectric coupling coefficient was higher than that of conventionally sintered ceramics and comparable to that of core-shell structures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Pankhuri Bansal, Manoj Kumar, Rajat Syal, Arun Kumar Singh, Sanjeev Kumar
Summary: In this study, particulate composites of (1 - x)Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT)-xNi(0.8)Zn(0.2)Fe(2)O(4 )(NZFO) were prepared by the conventional solid-state method with x values of 0.2, 0.3, and 0.4. The composites exhibited mixed spinel-perovskite phases, and changes in dielectric properties, magnetic behavior, and magnetoelectric coupling were observed with variations in ferrite content. The highest magnetoelectric coupling coefficient was found in the x = 0.4 composite.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Sagar M. Mane, Aviraj M. Teli, Sonali A. Beknalkar, Nishant T. Tayade, Arjun N. Tarale, Pravin M. Tirmali, Shrinivas B. Kulkarni, Jae Cheol Shin, Jaewoong Lee
Summary: This paper presents a systematic investigation of the magnetoelectric and magnetodielectric coupling coefficients by adding a ferromagnetic phase to a lead-free ferroelectric phase. The results show that the hybrid microwave sintering method used in the preparation process is efficient and environmentally friendly. The ferroelectric-ferrite composite with x = 0.2 demonstrates the highest magnetoelectric and magnetodielectric coupling coefficients, providing an alternative approach for developing multiferroic composites.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Pankhuri Bansal, Rajat Syal, Arun Kumar Singh, Sanjeev Kumar
Summary: Lead-free piezomagnetic-piezoelectric laminate composites using Ni0.8Zn0.2Fe2O4(NZFO) and Ba0.85Ca0.15Zr0.1Ti0.9O3(BCZT) showed improved magnetoelectric properties. The solid-state method was used for synthesis and X-ray diffraction patterns confirmed phase coexistence. Scanning electron microscopy revealed surface morphology and chemical composition. These composites exhibited high dielectric constant, significant electromechanical coupling factor, and well-saturated polarization, making them promising for future multifunctional devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
D. Padmapriya, D. Dhayanithi, M. T. Rahul, Nandakumar Kalarikkal, N. Giridharan
Summary: This article systematically studied room-temperature magnetoelectric coupling in 0-3 particulate and 2-2 laminated composite structures, showing significant variations in electrical polarization and magnetization parameters in composite samples compared to pristine BTO and NFO. The perceived strain-mediated magnetoelectric coupling is strongly dependent on the relative mass ratio of BTO and NFO in both the particulate and laminated structures. An enhanced magnetoelectric coefficient of 25.23 mV/cm.Oe was achieved for the sandwiched-laminated structure of (1-x)BaTiO3 and (x)NiFe2O4 with x=0.45 at an applied magnetic field of 1.34 KOe.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Ceramics
Indrani Coondoo, Joao Vidal, Igor Bdikin, R. Surmenev, Andrei L. Kholkin
Summary: Lead-free multiferroic particulate composites were prepared using solid state reaction method, and their structure, properties, and magnetoelectric coupling effect were investigated. The composites exhibited soft ferromagnetic behavior at room temperature and showed maximum magnetoelectric coupling effect at a certain impurity ratio.
CERAMICS INTERNATIONAL
(2022)
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
Engineering, Electrical & Electronic
K. C. Dhanyaprabha, Bibin Jacob, Manoj Mohan, Imaddin A. Al-Omari, Salim H. Al-Harthi, Myo T. Z. Myint, Hysen Thomas
Summary: Lead-free multiferroic magnetoelectric mixed and core shell composites of BaTiO3 and NiFe2O4 were synthesized by a two-step process. The structural, morphological, electrical, magnetic, and dielectric properties of the samples were investigated. XRD-Rietveld refinement confirmed the co-existence of two phases in the composite. The enhanced remanent polarization of the core shell composite indicates the formation of a core shell structure. The magnetoelectric coupling studies on the core-shell system showed enhancement due to the well-defined interface between the two phases, making it possible for applications in magnetoelectric sensors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
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
Materials Science, Ceramics
Lirong Wang, Qingye Lu, Xuejuan Lv, Yuchang Su
Summary: In this work, 0-3 type CoFe2O4-BaTiO3 nanocomposites were prepared by co-precipitation sintering process. The structure, dielectric, magnetic properties and magnetoelectric (ME) coupling effect of the nanocomposites were investigated. The results showed that the 0-3 connectivity in the nanocomposites hindered the growth of CoFe2O4, resulting in smaller particle size and larger interface area between CoFe2O4 and BaTiO3. The nanocomposites exhibited strong ME coupling effect, with the C40s sample having a maximum ME coupling coefficient of 587.3 mV/cm center dot Oe at 1.8 kHz.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Guohua Dong, Tian Wang, Haixia Liu, Yijun Zhang, Yanan Zhao, Zhongqiang Hu, Wei Ren, Zuo-Guang Ye, Keqing Shi, Ziyao Zhou, Ming Liu, Jingye Pan
Summary: In this study, Fe3O4/BaTiO3 nanopillar composites were successfully constructed to achieve magnetoelectric coupling effect. Well-ordered BaTiO3 nanopillar arrays were prepared through template-assisted pulsed laser deposition, and the Fe3O4 layer was coated on BaTiO3 nanopillar arrays using atomic layer deposition. The research results showed a significant thermally driven magnetoelectric coupling coefficient near the phase transition of BaTiO3.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Mechanics
George Youssef, Somer Nacy, Scott Newacheck
Summary: This paper introduces an enhanced mechanistic analytical model to analyze the magnetoelectric response considering the geometry of a concentric cylinder structure, the effect of an elastic bonding layer, and mechanical boundary conditions. By modifying the continuity condition and introducing a normalized stiffness parameter, the elastic properties and geometry of the bonding layer are incorporated into the magneto-electro-elastic effective media theory. The results of this study can be applied in the development of efficient energy harvesters or frequency-consistent magnetic field sensors by manipulating the mechanical and bonding conditions.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Engineering, Electrical & Electronic
G. Jagadish Kumar, M. Sarathbavan, E. Senthil Kumar, M. Navaneethan, K. Kamala Bharathi
Summary: Structural, chemical, and low-temperature magnetic properties of lead-free 0.6NiFe(2)O(4)-0.4Na(0.5)Bi(0.5)TiO(3) composite are reported. The composite exhibits NFO and NBTO phases in appropriate composition, with ZFC and FC magnetization measurements showing competing magnetic interactions. Magnetization values increase with decreasing temperature, with saturation magnetization following Bloch's law and magnetocrystalline anisotropy increasing from 0.239 x 10(4) erg/cc to 0.349 x 10(4) erg/cc at various temperatures.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Shuhan Zheng, Meifeng Liu, Guanzhong Zhou, Xiang Li, Lin Lin, Zhibo Yan, Jun-Ming Liu
Summary: Magnetoelectric (ME) materials are important for their potential applications, and achieving a strong ME effect at high temperatures is crucial. By studying the Mn-doped linear ME material Co4-xMnxNb2O9, it was found that increasing the Mn substitution can enhance the Néel temperature TN while gradually suppressing the ME coefficient ?ME.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Fenghua Wang, Xiaowei Liu, Jian Ma, Bo Wu, Tao Wang, Wenjuan Wu, Min Chen
Summary: The effect of CFO on the microstructure and magnetoelectric properties of (1-x)BTS-BCT-xCFO composites was studied. The presence of CFO increased the grain size and magnetic properties, while deteriorating the electric properties. The optimal magnetoelectric coefficients were obtained at a CFO content of 0.20.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Wei Su, Zhongqiang Hu, Yaojin Li, Yongliang Han, Yicheng Chen, Chenying Wang, Zhuangde Jiang, Zhexi He, Jingen Wu, Ziyao Zhou, Zhiguang Wang, Ming Liu
Summary: Measurement of 3D vector magnetic field is vital for magnetic navigation, biomedical diagnosis, and microimaging. Traditional 3D magnetic sensors have limitations in size and spatial resolution, but recent spin orbit torque sensors based on ferromagnetic/heavy-metal heterostructures can detect magnetic field components individually. However, their practical application is hindered by large driving current density and complex driving procedure. In this study, 3D magnetic sensors with significantly reduced driving current density are reported, along with a record-high sensitivity and the ability to work with ultralow driving current density.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Bobo Zhang, Tao Zheng, Jiaxue You, Chuang Ma, Yucheng Liu, Lu Zhang, Jun Xi, Guohua Dong, Ming Liu, Shengzhong (Frank) Liu
Summary: A novel DJ-perovskitoid (DGA)PbI4 is designed by utilizing strong interactions between dimethylbiguanide (DGA) and PbI2, which exhibits better X-ray detection performance compared to other 2D PSCs. The improved performance is attributed to the minimized lattice distortion and increased hydrogen bonds, leading to enhanced lattice rigidity, weakened electron-phonon coupling, and suppressed disordered scattering of carriers. The (DGA)PbI4 devices achieve high carrier mobility (78.1 cm(2) V-1 s(-1)) and pronounced sensitivity (4869.0 mu C Gy(air)(-1)cm(-2)), making them the best 2D Pb-based PSC devices to date. They also demonstrate good spatial resolution in X-ray imaging and excellent long-term stability, showing promise for medical diagnostics and nondestructive determination.
ADVANCED MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Yongjun Du, Yiwei Xu, Jingen Wu, Jiacheng Qiao, Zhiguang Wang, Zhongqiang Hu, Zhuangde Jiang, Ming Liu
Summary: This study presents the first VLF underwater communication system based on a pair of acoustically actuated magnetoelectric antennas. The feasibility of the ME antennas for portable underwater communication is confirmed through theoretical analysis, finite element simulation, and experimental verification.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Biomedical
Adam Khalifa, Seyed Mahdi Abrishami, Mohsen Zaeimbashi, Alexander D. Tang, Brian Coughlin, Jennifer Rodger, Sydney S. Cash, Nian X. Sun
Summary: This study proposes a new concept of noninvasive focal stimulation of deep brain regions using temporal interference of two high-frequency magnetic fields. The experimental results show that regions affected by only one high-frequency magnetic field have low C-Fos expression, while regions affected by two fields interfering to create a low-frequency envelope display a significant increase in C-Fos expression.
JOURNAL OF NEURAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Bohan Chen, Wenxuan Zhu, Tian Wang, Bin Peng, Yiwei Xu, Guohua Dong, Yunting Guo, Haixia Liu, Houbing Huang, Ming Liu
Summary: In this study, high-quality freestanding single-crystalline PbZrO3 membranes were obtained using a water-soluble sacrificial layer method. PbZrO3/PVDF composites with different film thicknesses were constructed, and their dielectric properties and polarization response significantly improved, achieving a record-high energy density. Phase-field simulation showed that inserting PbZrO3 membranes effectively reduced breakdown paths, making single-crystalline AFE oxide membranes useful for composite-based high-power capacitors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunting Guo, Bin Peng, Ruibin Qiu, Guohua Dong, Yufei Yao, Yanan Zhao, Ziyao Zhou, Ming Liu
Summary: This article introduces a new method to construct a scroll-like 3D memory structure using self-rolling-up single-crystalline ferroelectric oxides. Experimental results show that this new structure can achieve high-density information storage, providing a new and general method for compact, high-density, and 3D memories from oxide materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Haixia Liu, Wenxuan Zhu, Qi Mao, Bin Peng, Yiwei Xu, Guohua Dong, Bohan Chen, Ruobo Peng, Yanan Zhao, Ziyao Zhou, Sen Yang, Houbing Huang, Ming Liu
Summary: In this study, boron nitride (BN) nanosheets were added to polyetherimide (PEI) to improve the breakdown strength (E-b) and high-temperature endurance, while freestanding single-crystalline BaZr0.2Ti0.8O3 (BZT) membranes with high dielectric constant were fabricated to enhance the energy density (U-e). The resulting laminated PEI-BN/BZT/PEI-BN composites showed a maximum U-e of 17.94J cm(-3) at 730 MV m(-1) at room temperature, which is more than double that of pure PEI. The composites also demonstrated excellent dielectric-temperature stability between 25 and 150 degrees C, with an outstanding U-e = 7.90 J cm(-3) at 650 MV m(-1) under 150 degrees C, surpassing other high-temperature dielectric capacitors reported thus far. Phase-field simulation revealed that the depolarization electric field at the BZT/PEI-BN interfaces effectively reduced carrier mobility, resulting in improved E-b and U-e over a wide temperature range. This work provides a promising and scalable route for developing sandwich-structured composites with remarkable energy storage performances for high-temperature capacitive applications.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Ruoda Zheng, Victor Estrada, Nishanth Virushabadoss, Alexandria Will-Cole, Adrian Acosta, Jinzhao Hu, Wenzhong Yan, Jane P. Chang, Nian X. Sun, Rashaunda Henderson, Gregory P. Carman, Abdon E. Sepulveda
Summary: This paper presents a 400 MHz magnetoelectric (ME) Lamb wave antenna design for use in the medical implant communication service band. The antenna uses a heterostructure of piezoelectric and magnetostrictive membranes to generate acoustic waves and function as a magnetic dipole. Finite element analysis simulations are used to investigate the piezoelectric, micromagnetic, and magnetic dipole radiation aspects of the antenna. An experimental demonstration shows mechanical resonance and ME coupling, indicating that the design can be used as a tunable oscillator or sensor in A(0) mode. This ME approach provides a solution to the miniaturization problem of traditional current-based implantable antennas.
APPLIED PHYSICS LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Wang Zhan, Qi Zhang, Cuiling Zhang, Zihao Yang, Niancai Peng, Zhuangde Jiang, Ming Liu, Xiaohui Zhang
Summary: A strain sensor based on double-network hydrogel has been developed, which has excellent mechanical properties and sensing stability, making it suitable for long-term tracking of human motions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Physics, Applied
Guohua Wu, Zhong Yu, Rongdi Guo, Zhiguang Wang, Hong Wang, Zhongqiang Hu, Ming Liu
Summary: To achieve compact and lightweight power conversion devices, MnZn ferrite doped with high-valent Sn4+ ions is used to manipulate electromagnetic properties and suppress high-frequency core losses. The Sn4+ ions mainly occupy grain boundaries rather than dissolving into the lattice, significantly impacting the electromagnetic properties. With increasing Sn substitution, initial permeability and saturation induction decrease monotonically. A Sn substitution content of 0.003 reduces core losses to 457 kW m(-3) at 3 MHz, 30 mT, and 25 degrees C, effectively suppressing eddy current loss and residual loss. The sample with Sn content of 0.003 demonstrates excellent overall electromagnetic properties, making it potentially useful in high-frequency transformers, converters, and power sources.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Meng Zhao, Lei Wang, Yifan Zhao, Yujing Du, Zhexi He, Kai Chen, Zhenlin Luo, Wensheng Yan, Qian Li, Chenying Wang, Zhuangde Jiang, Ming Liu, Ziyao Zhou
Summary: Researchers propose an energy-efficient method for switching magnetization in spintronic devices using sunlight control. By inducing photoelectron-induced redistribution of the orbital and spin moment, the in-plane Rashba field is enhanced, leading to a weakened perpendicular magnetic anisotropy and magnetization switching. This sunlight control of PMA could offer an alternative way for energy-efficient magnetic recording.
Article
Chemistry, Analytical
Adam Khalifa, Mehdi Nasrollahpour, Ali Nezaratizadeh, Xiao Sha, Milutin Stanacevic, Nian X. Sun, Sydney S. Cash
Summary: Wireless implantable medical devices have advanced significantly in the past three decades, allowing interaction with the nervous system. To enhance stability, safety, and distribution of these interfaces, a new class of sub-mm scale wireless microelectronic devices is being developed. This research presents a simple technique for fabricating and assembling a wirelessly powered stimulating implant, demonstrating high efficiency in in vivo experiments on an anesthetized rat.
Article
Physics, Multidisciplinary
Ruo-Bo Peng, Guo-Hua Dong, Ming Liu
Summary: Flexible electronics have attracted significant interest in the research community due to their broad applications in information storage, energy harvesting, and wearable devices. Researchers have utilized freestanding single crystal oxide thin films to achieve extraordinary functionalities, thanks to their super elasticity, ease of transfer, and exceptional ferro/electric/magnetic properties. By employing state-of-the-art synthesis methods, functional oxide films of various materials can be obtained in a freestanding phase, eliminating restrictions from growth substrates and enabling transfer to other flexible layers. This work introduces wet etching and mechanical exfoliation methods for preparing freestanding single crystal oxide thin films, reviews their applications in ferroelectric memory, piezoelectric energy harvesters, dielectric energy storage, correlated oxide interfaces, and novel freestanding oxide structures, and provides a discussion on recent research progress and future outlooks.
ACTA PHYSICA SINICA
(2023)
Article
Engineering, Electrical & Electronic
Hwaider Lin, Xiaoling Shi, Carsten Dubs, Mohan Sanghadasa, Nian Sun
Summary: In order to ensure the reliable operation of GPS receivers in complex electromagnetic environments, measures need to be taken against interfering signals. A new compact and passive thin-film frequency selective limiter (TF-FSL) for GPS applications has been demonstrated, showing low insertion loss, low-power rejection threshold, and high interference signal suppression. The TF-FSL utilizes a new transducer structure and the magnetostatic surface wave of a low-damping yttrium iron garnet (YIG) thin film.
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Diptashree Das, Ziyue Xu, Mehdi Nasrollahpour, Isabel Martos-Repath, Mohsen Zaeimbashi, Adam Khalifa, Ankit Mittal, Sydney S. Cash, Nian X. Sun, Aatmesh Shrivastava, Marvin Onabajo
Summary: A magnetoelectric antenna can perform wireless energy harvesting and sensing at different frequencies. This article presents a behavioral circuit model for hybrid ME antennas, which can simulate RF energy harvesting and sensing operations during circuit simulations. The ME antenna is connected to a CMOS energy harvester chip for wireless communication in fully integrated implantable devices. The measurements in this paper demonstrate simultaneous low-frequency wireless magnetic sensing and high-frequency wireless energy harvesting with one dual-mode ME antenna. The proposed antenna model can be used for design optimizations in energy harvesting circuits.
IEEE OPEN JOURNAL OF CIRCUITS AND SYSTEMS
(2023)
