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

Title
Correlation between tunability and anisotropy in magnetoelectric voltage tunable inductor (VTI)
Authors
송현철Yongke YanLiwei D. GengLujie ZhangXiangyu GaoSreenivasulu GollapudiShuxiang DongMohan SanghadasaKhai NgoYu U. WangShashank Priya
Issue Date
2017-11
Publisher
Scientific Reports
Citation
VOL 7-10
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/67132
ISSN
2045-2322
Appears in Collections:
KIST Publication > Article
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