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Updated: Aug 5, 2026
07:03
Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Ferroelectric Switchable Altermagnetic-Like Compensated Ferrimagnets with Charge Ordering
1Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing211189, China.
Journal of the American Chemical Society
|July 30, 2026
Summary
This study introduces the Fe3O5 monolayer, a novel material with near-zero magnetization but significant spin splitting. Its unique properties, including electric-field switchable spin polarization, offer potential for advanced spintronic devices.
Area of Science:
- Condensed matter physics
- Materials science
- Spintronics
Background:
- Unconventional collinear magnets, like altermagnets, offer combined ferromagnet and antiferromagnet advantages.
- Functionalizing these materials with ferroelectricity and charge ordering enhances their properties.
- Fe3O5 monolayer presents a promising candidate for exploring novel magnetic phenomena.
Purpose of the Study:
- To investigate the magnetic and electronic properties of the Fe3O5 monolayer.
- To explore the potential of Fe3O5 monolayer in spintronic applications.
- To understand the hybrid spin-splitting mechanism and its electric-field tunability.
Main Methods:
- First-principles calculations
- Density functional theory (DFT)
- Analysis of spin-splitting mechanisms and spin polarization
Main Results:
- The Fe3O5 monolayer exhibits a hybrid spin-splitting mechanism.
- It shows altermagnetic-like k-path alternating splitting and ferrimagnet-like Zeeman splitting.
- High spin polarization (>99%) with zero net magnetization was observed.
- Spin splitting is switchable via an electric field due to hidden magnetoelectricity.
Conclusions:
- Fe3O5 monolayer demonstrates a unique combination of properties for spintronics.
- Its electric-field tunable, highly spin-polarized conductivity with zero magnetization is a significant finding.
- This material holds promise for next-generation spintronic devices.
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