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

doi:10.1038/s41598-017-14455-0

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

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

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.

Original language	English (US)
Article number	16008
Journal	Scientific reports
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s41598-017-14455-0
State	Published - Dec 1 2017

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title = "Correlation between tunability and anisotropy in magnetoelectric voltage tunable inductor (VTI)",

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.",

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

note = "Funding Information: The authors gratefully acknowledge the financial support from DARPA MATRIX program. The authors would also like to thank the Center for Energy Harvesting Materials and Systems (CEHMS) for providing access to industrial experts and equipment. S.G. would like to acknowledge the support from office of basic energy science, department of energy, through grant number DE-FG02-09ER46674. H.-C.S. would like to acknowledge the support from AFOSR through grant number FA9550-14-1-0376. Publisher Copyright: {\textcopyright} 2017 The Author(s).",

year = "2017",

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doi = "10.1038/s41598-017-14455-0",

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T1 - Correlation between tunability and anisotropy in magnetoelectric voltage tunable inductor (VTI)

AU - Yan, Yongke

AU - Geng, Liwei D.

AU - Zhang, Lujie

AU - Gao, Xiangyu

AU - Gollapudi, Sreenivasulu

AU - Song, Hyun Cheol

AU - Dong, Shuxiang

AU - Sanghadasa, Mohan

AU - Ngo, Khai

AU - Wang, Yu U.

AU - Priya, Shashank

N1 - Funding Information: The authors gratefully acknowledge the financial support from DARPA MATRIX program. The authors would also like to thank the Center for Energy Harvesting Materials and Systems (CEHMS) for providing access to industrial experts and equipment. S.G. would like to acknowledge the support from office of basic energy science, department of energy, through grant number DE-FG02-09ER46674. H.-C.S. would like to acknowledge the support from AFOSR through grant number FA9550-14-1-0376. Publisher Copyright: © 2017 The Author(s).

PY - 2017/12/1

Y1 - 2017/12/1

N2 - 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.

AB - 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.

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

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