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Updated: Feb 8, 2026
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Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
Published on: August 25, 2022
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Dynamic magnetization on the low temperature magnetoelectric effect in multiferroic composites.
Alexandre José Gualdi1, Fabio Luis Zabotto1, Ducinei Garcia1
1Physics Department at Federal University of São Carlos, São Carlos, Brazil.
Summary
Investigating magnetoelectric (ME) effects in PMN-PT/CFO and PMN-PT/NFO composites revealed distinct behaviors. PMN-PT/CFO exhibits unique hysteresis at low temperatures and high frequencies, explained by spin-orbit coupling.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Multiferroics
Background:
- Magnetoelectric (ME) composites offer tunable properties for advanced applications.
- Understanding the interplay between magnetic and electric fields is crucial for device development.
Purpose of the Study:
- To investigate the frequency and magnetic field dependence of the magnetoelectric effect in PMN-PT/CFO and PMN-PT/NFO composites.
- To elucidate the underlying mechanisms responsible for distinct ME behaviors observed in these materials.
Main Methods:
- Experimental characterization of ME coefficients under varying frequencies and magnetic fields.
- Analysis of temperature-dependent ME response at low temperatures (5 K).
- Theoretical explanation based on ferromagnetic phase stabilization and spin-orbit coupling.
Main Results:
- PMN-PT/CFO composite displayed hysteretic ME coefficient behavior at 5 K and frequencies > 1000 Hz.
- PMN-PT/NFO composite showed a typical peak-peak ME coefficient related to magnetostriction.
- Distinct ME hysteresis in PMN-PT/CFO was attributed to energy level degeneracy and spin-orbit coupling.
Conclusions:
- Spin-orbit coupling significantly influences the dynamic properties of magnetoelastic interactions in PMN-PT/CFO.
- The study provides insights into controlling ME effects through material design and understanding fundamental interactions.
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