Colossal tunability in high frequency magnetoelectric voltage tunable inductors

Yongke Yan, Liwei D. Geng, Yaohua Tan, Jianhua Ma, Lujie Zhang, Mohan Sanghadasa, Khai Ngo, Avik W. Ghosh, Yu U. Wang, Shashank Priya

Research output: Contribution to journalArticle

6 Citations (Scopus)

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.

Original languageEnglish (US)
Article number4998
JournalNature communications
Volume9
Issue number1
DOIs
StatePublished - Dec 1 2018

Fingerprint

Anisotropy
inductors
Magnetocrystalline anisotropy
Permeability
Power electronics
inductance
Inductance
ferrites
Magnetization
permeability
Electric potential
electric potential
Magnetoelectric effects
magnetization
Magnetic domains
anisotropy
magnetic domains
electronics
cancellation
Solid solutions

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Yan, Yongke ; Geng, Liwei D. ; Tan, Yaohua ; Ma, Jianhua ; Zhang, Lujie ; Sanghadasa, Mohan ; Ngo, Khai ; Ghosh, Avik W. ; Wang, Yu U. ; Priya, Shashank. / Colossal tunability in high frequency magnetoelectric voltage tunable inductors. In: Nature communications. 2018 ; Vol. 9, No. 1.
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Yan, Y, Geng, LD, Tan, Y, Ma, J, Zhang, L, Sanghadasa, M, Ngo, K, Ghosh, AW, Wang, YU & Priya, S 2018, 'Colossal tunability in high frequency magnetoelectric voltage tunable inductors', Nature communications, vol. 9, no. 1, 4998. https://doi.org/10.1038/s41467-018-07371-y

Colossal tunability in high frequency magnetoelectric voltage tunable inductors. / Yan, Yongke; Geng, Liwei D.; Tan, Yaohua; Ma, Jianhua; Zhang, Lujie; Sanghadasa, Mohan; Ngo, Khai; Ghosh, Avik W.; Wang, Yu U.; Priya, Shashank.

In: Nature communications, Vol. 9, No. 1, 4998, 01.12.2018.

Research output: Contribution to journalArticle

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AU - Sanghadasa, Mohan

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