Colossal tunability in high frequency magnetoelectric voltage tunable inductors
Document Type
Article
Publication Date
11-27-2018
Department
Department of Materials Science and Engineering
Abstract
The electrical modulation of magnetization through the magnetoelectric effect provides a great opportunity for developing a new generation of tunable electrical components. Magnetoelectric voltage tunable inductors (VTIs) are designed to maximize the electric field control of permeability. In order to meet the need for power electronics, VTIs operating at high frequency with large tunability and low loss are required. Here we demonstrate magnetoelectric VTIs that exhibit remarkable high inductance tunability of over 750% up to 10 MHz, completely covering the frequency range of state-of-the-art power electronics. This breakthrough is achieved based on a concept of magnetocrystalline anisotropy (MCA) cancellation, predicted in a solid solution of nickel ferrite and cobalt ferrite through first-principles calculations. Phase field model simulations are employed to observe the domain-level strain-mediated coupling between magnetization and polarization. The model reveals small MCA facilitates the magnetic domain rotation, resulting in larger permeability sensitivity and inductance tunability.
Publication Title
Nature Communications
Recommended Citation
Yan, Y.,
Geng, L. D.,
Tan, Y.,
Ma, J.,
Zhang, L.,
Wang, Y. U.,
&
et. al.
(2018).
Colossal tunability in high frequency magnetoelectric voltage tunable inductors.
Nature Communications,
9.
http://doi.org/10.1038/s41467-018-07371-y
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/212
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Publisher's PDF
Publisher's Statement
Article deposited here in compliance with publisher policies. Publisher's version of record: https://doi.org/10.1038/s41467-018-07371-y