Article
Materials Science, Multidisciplinary
Junqi Gao, Zechen Sun, Hao Dong, Zhaoqiang Chu, Zhaofeng Song, Ying Shen
Summary: Magnetoelectric (ME) based energy harvester has attracted attention for its high output energy density at resonant frequency, but its narrow bandwidth limits practical applications. This paper presents a hybrid multimodal energy harvester using Metglas/PMN-PT ME composites, which works at different modes by integrating multiple layers of Metglas and three PMN-PT plates on a cantilever beam.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Composites
Xiaoqiang Wang, Juanjuan Zhang, Xiaodong Xia, Chao Fang, George J. Weng
Summary: The study investigates the influence of microstructure characteristics on the magnetoelectric properties of polymer-based hybrid composites, establishes a theoretical model, and discusses the factors affecting ME performance. The research provides a theoretical basis for the preparation and application of hybrid ME composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Applied
Sanming Hu, Min Zheng, Qi Wang, Ling Li, Jun Xing, Kun Chen, Fuyu Qi, Pengyu He, Lin Mao, Zhijun Shi, Bin Su, Guang Yang
Summary: In this study, a biodegradable and recyclable hydrogel-based magnetoelectric composite was developed, which can convert mechanical kinetic energy into electrical energy. The material has high efficiency in energy conversion and the ability to degrade rapidly and naturally. Additionally, the components of the material can be recycled and reused for other devices.
CARBOHYDRATE POLYMERS
(2022)
Article
Mechanics
Yang Shi, Ni Li, Yongkun Wang, Junjie Ye
Summary: This paper presents an analytical and explicit theoretical model for the nonlinear magnetoelectric effect in laminated composites, taking into account the multi-field coupled properties of magnetostrictive materials. Analytical solutions of nonlinear ME voltages in various modes are obtained, predicting that the frequency-multiplying behavior observed in the composites can be tuned by bias magnetic field. The optimal bias field for maximum linear voltage and zero nonlinear voltage is obtained.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Electrical & Electronic
Tingyu Deng, Li Lu, Di Lin, Lili Zhu, Cheng Bai, Ziyi Xia, Wenning Di, Dong Wang, Jie Jiao, Haosu Luo
Summary: In this work, a magnetoelectric antenna system is established, with an excellent magnetic field detection ability in the receiver and a good radiation ability in the transmitter at lower frequencies. By constructing a nonlinear magnetostrictive model and discussing the magneto-electric effects, it is found that the radiation capability of the device is strongly influenced by the frequency and magnetic bias.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Engineering, Electrical & Electronic
Lucas de Araujo Pereira, Adrien Morel, Mustapha Touhami, Theo Lamorelle, Ghislain Despesse, Gael Pillonnet
Summary: This letter presents an experimentally validated model to accurately predict the operating frequency, the switching angles, and the piezoelectric current for any six-phase piezoelectric dc-dc converter. This model reduces the transient simulation's calculation time to reach the steady state and can be used to initially setup the switching angles in the experiment or predict the high-frequency spectrum generated by the converter cycle.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Review
Chemistry, Physical
Anuj Kumar, Davinder Kaur
Summary: Magnetoelectric heterostructures have attracted attention in the material science field due to their magneto-electric coupling. Recent research has focused on improving the sensing performance of magnetoelectric-based magnetic sensors and exploring new sensing mechanisms such as signal modulation and increment E-based sensors. These sensors show potential for future applications in biomedical, geomagnetic, and magnetic anomaly detections.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Benjamin Spetzler, Elizaveta V. Golubeva, Ron-Marco Friedrich, Sebastian Zabel, Christine Kirchhof, Dirk Meyners, Jeffrey McCord, Franz Faupel
Summary: A study on magnetoelectric thin-film cantilevers as magnetic field sensors revealed different performances in sensitivity and frequency change between torsion modes and bending modes. The delta-E effect of certain stiffness tensor components was found to significantly increase the magnetic sensitivity, but excitation of torsion modes diminished the gain in sensitivity. Insights were gained for the design of high-sensitivity delta-E effect sensors and frequency tunable devices.
Article
Chemistry, Analytical
Kunyu Sun, Zhihao Jiang, Chengmeng Wang, Dongxuan Han, Zhao Yao, Weihua Zong, Zhejun Jin, Shandong Li
Summary: The magnetoelectric (ME) sensor is a new type of magnetic sensor that has ultrahigh sensitivity for measuring low-frequency weak magnetic fields. In this study, a metglas/PZT-5B ME sensor with a mechanical resonance frequency f(res) of 60.041 kHz was prepared. With the use of a frequency up-conversion technique, the sensor achieved a limit of detection (LOD) under an AC magnetic field lower than 1 nT at 8 Hz, and a minimum LOD of 0.51 nT at 20 Hz. The high-resolution ME sensor at the sub-nT level shows great potential in the field of low-frequency weak magnetic field measurement technology.
Article
Engineering, Electrical & Electronic
Xuan Sun, Jingen Wu, Xianfeng Liang, Yongjun Du, Yiwei Xu, Yuhan Qu, Mengmeng Guan, Hui Huang, Fuchao Li, Sujie Liu, Dengfeng Ju, Zhiguang Wang, Zhongqiang Hu, Jinghong Guo, Ming Liu
Summary: Magnetoelectric (ME) sensors based on piezoelectric/ferromagnetic composites have been extensively investigated for their resonance-enhanced ME coupling effect and high sensitivity for magnetic field. However, their sensitivity drops rapidly away from resonance, making them unsuitable for low-frequency applications. In this work, we study the optimized amplitude and frequency of the modulation field, which significantly improve the sensitivity at low frequency without increasing the noise level. A magnetic field of 200 pT is detected at 10 Hz with a near-flat frequency response in the range of 1-100 Hz, showing promising potential for low-frequency applications in smart grid and renewable energy.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Ziheng Liu, Zenglong Zhao, Yan Kai, Yunhong Lao, Jinyan Wang, Fanyi Meng
Summary: This article presents the frequency-domain-based modified impedance tuning analysis method and its application in the design of a class-Phi(2) dc-dc converter. By adjusting the second-order harmonic voltage, the goal of reducing voltage stresses across the main power devices is achieved. This method enables load-independent zero voltage switching characteristics.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Automation & Control Systems
Chung Ming Leung, Junran Xu, Xiao Tang, Min Gao, Jiefang Li, D. Viehland
Summary: This study proposed a novel passive control method for achieving high-frequency tunability in ME gyrators using passive capacitors, with no need for external controllable power and without decreasing power conversion efficiency. It demonstrated that passive external capacitors can effectively change the internal mechanical reactive components to achieve high tunability in gyrators.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
Alba Rodriguez-Lorente, Andres Barrado, Carlos Calderon, Antonio Lazaro, Pablo Zumel
Summary: This article presents a new nonisolated bidirectional dc-dc converter with noninverting output and buck-boost operation, allowing for soft switching and minimization of conduction losses for any load and voltage requirement using triple-phase shift modulation. The feasibility of the MCB3 converter is validated by comparing simulation-level results to experimental measurements for a 460-W-scaled prototype, showcasing its potential for various voltage and power ranges.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
Seok-Kyoon Kim, Choon Ki Ahn
Summary: A robust output voltage-tracking algorithm based on a variable invariant manifold was proposed in this paper. The method automatically adjusts the invariant manifold and introduces nonlinear disturbance observers to improve the transient output voltage-tracking performance. The proposed technique was confirmed experimentally with a 3-kW dc/dc boost power conversion system.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2021)
Article
Materials Science, Multidisciplinary
Vandana, Rahul Goel, Shashikant, Arun Kumar Singh, Sanjeev Kumar
Summary: The magnetoelectric effect has been investigated in particulate ferroelectric-ferrimagnetic composites. The composition of the composites has been tailored to observe the magnetoelectric coupling. The prepared composites showed well-defined crystal structures and relaxor behavior. The results indicated that the composites exhibited sensitivity to both electric and magnetic fields, and the magnetoelectric coefficient increased with the CFO content within a certain range.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Ziyang Yu, Yue Zhang, Zhenhua Zhang, Ming Cheng, Zhihong Lu, Xiaofei Yang, Jing Shi, Rui Xiong
Article
Physics, Applied
Lulu Chen, Maokang Shen, Yingying Peng, Xinyu Liu, Wei Luo, Xiaofei Yang, Long You, Yue Zhang
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Physics, Applied
Fa Chen, Xu Ge, Wei Luo, Renhao Xing, Shiheng Liang, Xiaofei Yang, Long You, Rui Xiong, Yoshichika Otani, Yue Zhang
Summary: This study explores the method of triggering oscillation of AFM DW by applying stress in spatial coordinates, to further expand the characteristic frequency of AFM magnetization dynamics. The mismatch in size leads to low-frequency oscillation, allowing DW to move at an almost constant velocity.
PHYSICAL REVIEW APPLIED
(2021)
Article
Engineering, Electrical & Electronic
Zhi Yang, Cen Wang, Long You, Xiaofei Yang, Yue Zhang
Summary: This article presents a numerical calculation of angle-dependent anisotropic magnetoresistance (AMR) under weak magnetic field for different magnetic anisotropy energies. The study shows that the extreme resistance in the AMR curve shifts with the deviation of easy axis from current under a weak magnetic field, providing insights into analyzing magnetic anisotropic fields via AMR measurements.
IEEE TRANSACTIONS ON MAGNETICS
(2021)
Article
Chemistry, Multidisciplinary
Ziyang Yu, Bin Gong, Lun Xiong, Xinran Du, Chenhuinan Wei, Rui Xiong, Zhihong Lu, Yue Zhang
Summary: This paper proposes a racetrack memory with the advantages of small size and high reading speed based on current-induced domain wall motion in a ferromagnetic nanowire. The enhancement of domain wall velocity can be achieved by inter-wire magnetostatic coupling in a double nanowire system. By adjusting the magnetic anisotropy constant difference, the manipulation of working current density is possible.
NANOSCALE ADVANCES
(2022)
Article
Physics, Applied
Xu Ge, Yangyi Chen, Yue Cao, Can Li, Tailin Li, Ziquan Li, Long You, Shiheng Liang, Xiaofei Yang, Yue Zhang
Summary: In this study, we numerically investigate the emission of spin wave packets from a moving antiferromagnetic domain wall and propose a method to generate a frequency comb with a sub-THz central frequency and a GHz frequency interval. Our work opens up possibilities for developing tunable frequency band AFM THz devices based on spin-orbit torque.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Applied
Ziyang Yu, Bin Gong, Chenhuinan Wei, Rui Wang, Lun Xiong, Long You, Yue Zhang, Shiheng Liang, Zhihong Lu, Rui Xiong
Summary: A skyrmionium is a magnetic texture composed of two skyrmions with opposite winding numbers and different sizes. This study proposes a skyrmionium motion with negligible deformation in a synthetic antiferromagnetic medium. By enhanced coupling between the inner and outer skyrmion, the deformation of the skyrmionium is suppressed. This research opens up new possibilities for the development of devices with high stability, high processing speed, and small sizes.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Applied
Cen Wang, Kuan Wang, Xinyu Wen, Wei Luo, Shiheng Liang, Yue Zhang, Yuhui He
Summary: The stochastic artificial neural network has been widely studied due to its ability to address the critical issue of uncertainty quantification in many applications. This study proposes a stochastic spintronic synapse based on spin-torque-induced stochastic magnetic domain-wall dynamics, which can efficiently emulate the stochastic weight-modification behaviors of synapses and exhibit analog properties. Experimental results demonstrate that a spiking neural network based on these stochastic synapses can classify breast cancer data with a high accuracy of 95.7%.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Multidisciplinary
Bin Gong, Chenhuinan Wei, Han Yang, Ziyang Yu, Luowen Wang, Lun Xiong, Rui Xiong, Zhihong Lu, Yue Zhang, Qingbo Liu
Summary: Skyrmionium is a combination of a skyrmion with a topological charge, resulting in a magnetic configuration with a total topological charge of Q = 0. It has unique characteristics such as higher velocity, motion restricted to the middle of the track without the skyrmion Hall effect, and absence of an acceleration phase. In this work, a novel nanostructure composed of triple nanowires with a narrow channel is proposed, which can convert skyrmionium into a DW pair or skyrmion and regulate the topological charge Q. Furthermore, a deep spiking neural network (DSNN) with high recognition accuracy is constructed based on the analysis of the mechanism and using the nanostructure as an artificial synapse device.
Article
Materials Science, Multidisciplinary
Maokang Shen, Xiangyu Li, Long You, Xiaofei Yang, Wei Luo, Yue Zhang
Summary: In this study, we theoretically demonstrate that asymmetrical DW motion can still occur in a perfectly symmetrical HM/FM/HM multilayer with a zero total iDMI constant due to the exchange coupling between the neighboring FM atomic layers in the FM medium.
