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Colossal tunability in high frequency magnetoelectric voltage tunable inductors

Author

Listed:
  • Yongke Yan

    (Virginia Tech
    Pennsylvania State University)

  • Liwei D. Geng

    (Michigan Technological University)

  • Yaohua Tan

    (University of Virginia)

  • Jianhua Ma

    (University of Virginia)

  • Lujie Zhang

    (Virginia Tech)

  • Mohan Sanghadasa

    (US Army RDECOM)

  • Khai Ngo

    (Virginia Tech)

  • Avik W. Ghosh

    (University of Virginia)

  • Yu U. Wang

    (Michigan Technological University)

  • Shashank Priya

    (Virginia Tech
    Pennsylvania State University)

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.

Suggested Citation

  • Yongke Yan & Liwei D. Geng & Yaohua Tan & Jianhua Ma & Lujie Zhang & Mohan Sanghadasa & Khai Ngo & Avik W. Ghosh & Yu U. Wang & Shashank Priya, 2018. "Colossal tunability in high frequency magnetoelectric voltage tunable inductors," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07371-y
    DOI: 10.1038/s41467-018-07371-y
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