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Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
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Two-Dimensional Spin-Antiferroelectric Altermagnets with Giant Spin Splitting: From Model to Material Realization
Zesen Fu1, Aolin Li1, Wenzhe Zhou2
1School of Physics and Technology, Xinjiang University, Urumqi830017, China.
Nano Letters
|August 12, 2026
Summary
Researchers developed novel 2D spin-antiferroelectric altermagnets (2D spin-AFEAMs) for spintronics. These materials allow electrical control of spin polarization, paving the way for advanced electronic devices.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Spintronics
Background:
- Multiferroic altermagnets offer potential for next-generation spintronics due to giant intrinsic spin splitting.
- The concept of spin-antiferroelectricity (spin-AFE) provides a new avenue for designing such materials.
Purpose of the Study:
- To construct two-dimensional (2D) multiferroic altermagnets with electrical control of spin polarization.
- To propose a general design strategy for creating 2D spin-antiferroelectric altermagnets (2D spin-AFEAMs) with significant intrinsic spin splitting.
Main Methods:
- Theoretical construction of 2D spin-AFEAMs based on the spin-AFE concept.
- Prediction of candidate materials using a proposed design strategy.
- Investigation of transport properties and spin current switching mechanisms.
Main Results:
- A new class of 2D spin-AFEAMs was successfully constructed.
- Monolayer (CoCl)2Te and its family were identified as promising candidates.
- Highly tunable transport regimes were uncovered in monolayer (CoCl)2Te, enabling electrical switching of spin currents.
Conclusions:
- The study enriches the field of 2D multiferroics.
- A blueprint for developing high-performance, electrically switchable altermagnetic spintronic devices was provided.
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