Non-reciprocal voltage–current and impedance gyration effects in ferrite/piezoelectric toroidal magnetoelectric composites
- 25 January 2021
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 118 (4), 042402
- https://doi.org/10.1063/5.0038722
Abstract
A compact, efficient, and passive magnetoelectric (ME) gyrator consisting of a toroidal ferrite/piezoelectric composite and coil was developed, and its non-reciprocal V–I/I–V and bidirectional impedance conversion properties were systemically characterized. When a maximum V/I coefficient of 115 V/A over RL > 10 kΩ was obtained for the direct ME effect configuration, the output power reaches its maximum of 2.59 μW for optimum RL = 65 Ω at a constant input density of 48.4 μW/cm3, and when an inverse I/V coefficient was obtained, the output power reaches its maximum at 1.4 mA/V and 0.83 μW under optimum RL = 260 Ω and a constant input of 32.3 μW/cm3. Correspondingly, resistance-controlled capacitive/inductance tunabilities of 31 pF/Ω and 0.37 μH/Ω were achieved. Compared to traditional rectangular ME gyrators, the toroidal one has desired electromagnetic interference (EMI) tolerances due to its lower shape-induced anisotropy, near-zero demagnetization effects, and closed magnetic circuit. These findings provided more flexibility of the device design for efficient and compact power electronics deployed in circumstances where the lower EMI at higher frequencies was required.Funding Information
- Program for Innovative Research Groupin University of Henan Province (20IRTSTHN017)
- Center for Hierarchical Manufacturing, National Science Foundation (DMR-1808892)
- National Natural Science Foundation of China (61973279)
- National Natural Science Foundation of China (62004177)
- National Natural Science Foundation of China (62073299)
- Russian Foundation for Basic Research (18-52-00021)
This publication has 34 references indexed in Scilit:
- Non-reciprocal electronics based on temporal modulationNature Electronics, 2020
- Versatile power and energy conversion of magnetoelectric composite materials with high efficiency via electromechanical resonanceNano Energy, 2020
- A Current-to-Voltage DC-DC Converter for Powering Backbone Devices of Scientific Cabled Seafloor ObservatoriesEnergies, 2019
- Advances in magnetoelectric multiferroicsNature Materials, 2019
- Nonreciprocal Components Based on Switched Transmission LinesIEEE Transactions on Microwave Theory and Techniques, 2018
- Review of multi-layered magnetoelectric composite materials and devices applicationsJournal of Physics D: Applied Physics, 2018
- Voltage gain and efficiency of a bi-layered radial mode piezoelectric/magnetoelectric solid-state transformerIntegrated Ferroelectrics, 2016
- Broadband high-sensitivity current-sensing device utilizing nonlinear magnetoelectric medium and nanocrystalline flux concentratorReview of Scientific Instruments, 2015
- Bidirectional current-voltage converters based on magnetostrictive/piezoelectric compositesApplied Physics Letters, 2009
- The Ferromagnetic Faraday Effect at Microwave Frequencies and its ApplicationsBell System Technical Journal, 1952