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Updated: Jan 19, 2026

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials
Published on: July 18, 2025
Magnon-driven interfacial magnetoelectric coupling in Co/PMN-PT multiferroic heterostructures
Cai Zhou1, Mingfang Zhang1, Cunfang Feng1
1Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, School of Electronics and Electrical Engineering, No. 1 Sunshine Avenue, Jiangxia District, Wuhan, 430200, People's Republic of China. shxwang@wtu.edu.cn and Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, School of Electronics and Electrical Engineering, No. 1 Sunshine Avenue, Jiangxia District, Wuhan, 430200, People's Republic of China.
Investigating multiferroic heterostructures, this study reveals non-volatile magnetoelectric coupling. Inserting a tantalum layer modifies the coupling mechanism, offering insights for future multiferroic device designs.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Multiferroic heterostructures exhibit magnetoelectric coupling, enabling control of magnetic properties via electric fields.
- Investigating room-temperature interfacial coupling is crucial for practical device applications.
Purpose of the Study:
- To investigate magnon-driven interfacial magnetoelectric coupling in Cobalt/PMN-PT multiferroic heterostructures.
- To explore the effect of inserting a non-magnetic Tantalum layer on the magnetoelectric coupling mechanism.
Main Methods:
- Ferromagnetic resonance (FMR) field measurements at room temperature.
- Electric field modulation of FMR in Co/PMN-PT and Co/Ta/PMN-PT heterostructures.
- Analysis of resonance field shifts and polarization-electric field curves.
Main Results:
- Co/PMN-PT demonstrated non-volatile, strong magnetoelectric coupling with a loop-like FMR field response.
- Co/Ta/PMN-PT showed piezostrain-induced butterfly-like FMR field curves.
- The Tantalum insertion altered the coupling mechanism, attributed to magnon-driven interfacial effects.
Conclusions:
- Magnon-driven interfacial coupling strongly correlates Co magnetization and PMN-PT polarization.
- The observed non-volatile behavior is promising for advanced multiferroic device applications.
- Interface engineering via insertion layers is a viable strategy for tuning multiferroic properties.
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