Article
Chemistry, Analytical
Eric Elzenheimer, Christin Bald, Erik Engelhardt, Johannes Hoffmann, Patrick Hayes, Johan Arbustini, Andreas Bahr, Eckhard Quandt, Michael Hoeft, Gerhard Schmidt
Summary: Dedicated research is being conducted on novel thin film magnetoelectric (ME) sensor concepts for medical applications. A quantitative evaluation of the sensor system and its output signals is necessary, along with a system consideration. The evaluation should be performed in reproducible measurement conditions, and an application-specific capacity (ASC) can be used as a figure of merit for a quantitative signal assessment. The approach can be applied to other magnetic sensors and applications.
Article
Physics, Applied
Guoliang Yuan, Rukai Xu, Hanzhou Wu, Yisong Xing, Chen Yang, Rui Zhang, Wenbin Tang, Yiping Wang, Yaojin Wang
Summary: Magnetoelectric (ME) sensors are important tools for detecting weak magnetic fields, but there are currently no high-quality ME sensors available for high-temperature environments. By bonding a specific piezoelectric ceramic and alloy together using an inorganic glue, a high-temperature ME sensor with excellent piezoelectric performance and maximum stress was achieved. The sensor also exhibited high magnetic field detecting precision at different temperatures.
APPLIED PHYSICS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Ziyun Chen, Rui Chen, Tingyu Deng, Yuhang Wang, Wenning Di, Haosu Luo, Tao Han
Summary: This study proposes a magnetic anomaly detection method using a self-designed high-sensitivity three-axis magnetoelectric (ME) magnetic sensor and a hybrid algorithm of particle swarm optimization (PSO) and simulated annealing (SA) algorithms. The magnetic dipole model is utilized for parameter estimation, and the proposed method is evaluated using controlled experiments, demonstrating high fitting levels and consistency with experimental design.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Analytical
Dmitri A. Burdin, Dmitri V. Chashin, Nikolai A. Ekonomov, Leonid Y. Fetisov, Vladimir L. Preobrazhensky, Yuri K. Fetisov
Summary: This study investigates the low-frequency magnetoelectric (ME) effects in heterostructures consisting of a layer of antiferromagnetic hematite & alpha;-Fe2O3 crystal with easy-plane anisotropy and a piezoelectric layer. The results show that the frequency tuning of the hematite crystal is linearly related to the increase in the bias field, reaching up to 37%. The frequency tuning of the hematite-PVDF heterostructure is 24% with a ME coefficient of 58 mV/(Oe & BULL;cm). The frequency tuning of the hematite-piezoceramic heterostructure is 4.4% with a ME coefficient of 4.8 V/(Oe & BULL;cm). Additionally, efficient generation of the second voltage harmonic is observed in the hematite-piezoceramic heterostructure.
Article
Instruments & Instrumentation
Dmitry Saveliev, Leonid Fetisov, Dmitry Chashin, Yuri Fetisov, Anastasia Khon, Mikhail Shamonin
Summary: A magnetoelectric (ME) voltage transformer is fabricated using a ferromagnetic (FM)-piezoelectric (PE) heterostructure, where the thickness of the magnetic layers significantly influences its characteristics. The maximum open-circuit voltage transformation ratio and power transfer efficiency are achieved at the largest total thickness of FM layers. The voltage transformation ratio can be changed from zero to the maximum value by varying the control magnetic field, and a simple model allows for calculation of the transformer's characteristics under different conditions.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Computer Science, Information Systems
Bruno Brajon, Enrico Gasparin, Gael Close
Summary: This survey paper compiles and benchmarks the performance of integrated magnetic sensors in terms of noise and full-scale magnetic field. It collects performance metrics of 31 sensors realized in various technologies and derives noise models for each sensor. The benchmark is extended to gradiometers and a low-noise measurement setup is developed.
Article
Multidisciplinary Sciences
Tong Zhu, Fabio Orlandi, Pascal Manuel, Alexandra S. Gibbs, Weiguo Zhang, P. Shiv. Halasyamani, Michael A. Hayward
Summary: By conducting low-temperature cation-exchange reactions on Li2SrTa2O7, researchers successfully synthesized a material, MnSrTa2O7, demonstrating simultaneous spontaneous magnetic and electrical polarisations. At low temperatures, the material exhibits complex magnetic and structural transitions.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Applied
Athinarayanan Sundaresan, N. V. Ter-Oganessian
Summary: Over the last two decades, significant progress has been made in combining ferroelectricity and magnetism in the same material, particularly through the discovery of spin-induced ferroelectricity with strong coupling between magnetism and electric polarization, which is determined by the symmetries of the crystal lattice and magnetic structure.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Yu Gu, Yi Han, Xiangzhi Liu, Ning Zhang, Xiufeng Zhang, Min Pan, Shuoyu Wang, Wei Dong, Tao Liu
Summary: This article proposes a three-stage real-time adaptive anti-disturbance data fusion algorithm to improve the measurement accuracy of MIMU-flexible sensor-based wearable systems under magnetic disturbance. The performance of the algorithm is validated on a designed wearable system, and the results show high accuracy in the indoor environment.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Qian Wang, Mingming Li, Xiaodong Niu, Mengfei Liu, Bowen Wang
Summary: Three types of magnetostrictive wires with improved magnetostrictive value and high Curie temperature have been successfully prepared for designing ultrasonic sensors. Based on the established signal intensity model, sensors capable of stable operation at high temperatures were designed, providing reliable output signals.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Multidisciplinary
Karol Kuczynski, Piotr Bilski, Adrian Bilski, Jerzy Szymanski
Summary: The paper introduces a new concept of a magnetoelectric sensor constructed using amorphous glass ribbon, presenting its output characteristics, working conditions, and experimental results. The novel construction minimizes the demagnetizing field in the sensor's core and linearizes the relationship between the magnetic field and obtained voltage. Experiments were conducted to examine the sensor's operation in the presence of a constant magnetic field (HDC) and verify the linear dependency between HDC value and output voltage amplitude. A computer model representing the sensor's behavior in a constant magnetic field is described, which implements parameter identification using regression algorithms. The proposed device enables measurement of weak magnetic fields, with approximately linear dependency between output signal amplitudes and the constant component in the measured field.
BULLETIN OF THE POLISH ACADEMY OF SCIENCES-TECHNICAL SCIENCES
(2023)
Article
Engineering, Mechanical
Dmitri Burdin, Dmitri Chashin, Leonid Fetisov, Dmitri Saveliev, Nikolai Ekonomov, Melvin Vopson, Yuri Fetisov
Summary: The magnetoelectric effect enables the mutual transformation of magnetic and electric fields, and by utilizing a coil-free excitation system, the operating frequency of ME devices can be increased and their size reduced. This advancement opens up the possibility of creating planar ME devices and accelerates their integration into modern electronics and microsystem technology.
Article
Chemistry, Physical
Sukhendu Sadhukhan, Abhik S. Mahapatra, Ayan Mitra, Pabitra K. Chakrabarti
Summary: Nanocrystalline holmium orthoferrite (HoFeO3) was synthesized using the chemical sol-gel technique. Structural investigation and magnetization measurements revealed its multiferroic behavior, establishing its candidacy for multiferroic applications in M-E devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
C. Dhital, R. L. Dally, D. Pham, T. Keen, Q. Zhang, P. Siwakoti, R. Nepal, R. Jin, R. Rai
Summary: HoFeWO6, a polar magnetic oxide, exhibits a polar crystal structure where the Fe sublattice magnetic structure plays a crucial role in generating spontaneous polarization through magnetoelectric coupling.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hamed Sharifi Dehsari, Morteza Hassanpour Amiri, Kamal Asadi
Summary: Experimental realization of thin films with significant room-temperature magnetoelectric coupling coefficient α(ME) without an external DC magnetic field has been challenging. Here, large α(ME) of 750 +/- 30 mV Oe(-1) cm(-1) is achieved in multiferroic polymer nanocomposites (MPCs) thin films. The MPCs consist of PMMA-grafted cobalt-ferrite nanoparticles uniformly dispersed in piezoelectric polymer P(VDF-TrFE). Nanoparticle agglomeration is reduced by surface functionalization with PMMA, enabling the uniform dispersion of nanoparticles in submicrometer thin films. This research can promote the development of flexible and printable multiferroic electronic devices for sensing and memory applications.
Article
Engineering, Electrical & Electronic
Michael Synodis, Jun Beom Pyo, Minsoo Kim, Hanju Oh, Xuan Wang, Mark. G. Allen
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2020)
Article
Chemistry, Multidisciplinary
Peter Finkel, Markys G. Cain, Thomas Mion, Margo Staruch, Jakub Kolacz, Sukriti Mantri, Chad Newkirk, Kyril Kavetsky, John Thornton, Junhai Xia, Marc Currie, Thomas Hase, Alex Moser, Paul Thompson, Christopher A. Lucas, Andy Fitch, Julie M. Cairney, Scott D. Moss, Alan Gareth Alexander Nisbet, John E. Daniels, Samuel E. Lofland
Summary: In this study, the switching of ferroelectric domains in domain-engineered crystals was controlled by electrical field and mechanical stress, resulting in the transformation from an opaque polydomain structure to a transparent monodomain state. This manipulation achieved both a large piezoelectric effect and high optical transmissivity.
ADVANCED MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Michael J. D'Agati, Sydney Sofronici, Yujia Huo, Peter Finkel, Konrad Bussmann, Keith L. McLaughlin, Brad Wheeler, Nicholas J. Jones, Thomas Mion, Margo Staruch, Roy H. H. Olsson III
Summary: Magnetic fields produced by the body have potential applications in medical diagnoses, patient monitoring, and robotic control. However, current sensing systems for biomagnetic signals are either large in size, consume excessive power, or both, when applied to on-body applications. This study investigates the use of multiferroic systems as an alternative to current biomagnetic sensing platforms, showing that multiferroic resonant MEMS magnetometers can provide high sensitivity and low noise while maintaining a small die size and low power consumption. The experiment demonstrates the effectiveness of strain modulation technique in upconverting low frequency magnetic field signals to the resonance band of the plates, achieving sensitivities and resolutions suitable for biomagnetic sensing.
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Jun Beom Pyo, Xuan Wang, Minsoo Kim, Hanju Oh, Robert Kauffman, Mark G. G. Allen
Summary: Metallic magnetic alloys are attracting attention as core materials in ultracompact or integrated inductors and transformers. To suppress eddy current loss at high frequencies, a multilayer stack of magnetic material laminations and electrically insulating interlayers is required. The use of polypyrrole as an interlayer material in sequential multilayer electrodeposition has been investigated and shown effective in suppressing eddy current loss.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
