Correlation between tunability and anisotropy in magnetoelectric voltage tunable inductor (VTI)

Yongke Yan, Liwei D. Geng, Lujie Zhang, Xiangyu Gao, Sreenivasulu Gollapudi, Hyun Cheol Song, Shuxiang Dong, Mohan Sanghadasa, Khai Ngo, Yu U. Wang, Shashank Priya

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Electric field modulation of magnetic properties via magnetoelectric coupling in composite materials is of fundamental and technological importance for realizing tunable energy efficient electronics. Here we provide foundational analysis on magnetoelectric voltage tunable inductor (VTI) that exhibits extremely large inductance tunability of up to 1150% under moderate electric fields. This field dependence of inductance arises from the change of permeability, which correlates with the stress dependence of magnetic anisotropy. Through combination of analytical models that were validated by experimental results, comprehensive understanding of various anisotropies on the tunability of VTI is provided. Results indicate that inclusion of magnetic materials with low magnetocrystalline anisotropy is one of the most effective ways to achieve high VTI tunability. This study opens pathway towards design of tunable circuit components that exhibit field-dependent electronic behavior.

Original languageEnglish (US)
Article number16008
JournalScientific reports
Issue number1
StatePublished - Dec 1 2017

All Science Journal Classification (ASJC) codes

  • General


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