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Multiferroic Coupling of Ferromagnetic and Ferroelectric Particles through Elastic Polymers
Liudmila A Makarova1,2, Danil A Isaev1, Alexander S Omelyanchik2
1Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia.
Polymers
|January 11, 2022
Summary
This study models multiferroic polymer composites where ferromagnetic and ferroelectric particles are separated by a polymer matrix. It reveals how mechanical stress mediates magnetoelectric coupling in these distinct systems.
Area of Science:
- Materials Science
- Condensed Matter Physics
Background:
- Multiferroics exhibit dual magnetic and electric polarization properties.
- Composite multiferroics combine ferromagnetic (FM) and ferroelectric (FE) materials.
- Polymer-based FM/FE composites present unique coupling mechanisms due to particle separation.
Purpose of the Study:
- To investigate the multiferroic behavior in polymer composites with spatially separated FM and FE particles.
- To model the magnetoelectric coupling mediated by a polymer matrix.
Main Methods:
- Development of a numerical model for polymer-based FM/FE composites.
- Experimental validation using a polymer dispersion of iron and lead zirconate particles.
Main Results:
- Demonstrated that mechanical stress in the polymer matrix mediates magnetoelectric coupling between FM and FE particles.
- Showcased magnetization-induced electric polarization and electric field-induced magnetic polarization.
- Confirmed the model's accuracy through experimental results.
Conclusions:
- The proposed model accurately describes multiferroic coupling in polymer composites with separated FM/FE phases.
- This research offers insights into designing advanced magnetoelectric materials for novel applications.
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