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Correlation between tunability and anisotropy in magnetoelectric voltage tunable inductor (VTI)
Yongke Yan1, Liwei D Geng2, Lujie Zhang3
1Center for Energy Harvesting Materials and Systems, Virginia Tech, Blacksburg, VA, 24061, USA. yanthu@vt.edu.
Scientific Reports
|November 24, 2017
Summary
We demonstrate a magnetoelectric voltage tunable inductor (VTI) with 1150% inductance tunability. Optimizing magnetic anisotropy is key for designing efficient, tunable electronic components.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Electrical Engineering
Background:
- Magnetoelectric coupling in composite materials enables electric field control of magnetic properties.
- Tunable electronic components are crucial for energy-efficient electronics.
Purpose of the Study:
- To provide foundational analysis of magnetoelectric voltage tunable inductors (VTIs).
- To understand the mechanisms behind large inductance tunability in VTIs.
Main Methods:
- Analytical modeling validated by experimental results.
- Investigating the correlation between permeability, stress, and magnetic anisotropy.
Main Results:
- Achieved up to 1150% inductance tunability under moderate electric fields.
- Identified low magnetocrystalline anisotropy as critical for high VTI tunability.
Conclusions:
- Comprehensive understanding of anisotropies' impact on VTI tunability.
- Opens pathways for designing novel tunable circuit components with field-dependent behavior.
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