Related Experiment Video
Updated: Jul 9, 2025
09:06
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
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Large off-diagonal magnetoelectricity in a triangular Co2+-based collinear antiferromagnet
Xianghan Xu1, Yiqing Hao2, Shiyu Peng3
1Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA. xx8060@princeton.edu.
Nature Communications
|December 5, 2023
Summary
Collinear spins in R-3 materials can exhibit magnetic toroidicity. Researchers observed this phenomenon in CoTe6O13, demonstrating its potential for novel magnetoelectric devices.
Area of Science:
- Solid-state physics
- Materials science
- Magnetism
Background:
- Magnetic toroidicity is a rare magnetic structure in solids.
- Understanding its origins is key for developing new functional materials.
Purpose of the Study:
- To experimentally demonstrate magnetic toroidicity in a material with R-3 lattice symmetry.
- To investigate the properties of CoTe6O13 for potential magnetoelectric applications.
Main Methods:
- Single crystal X-ray diffraction
- Temperature-dependent magnetic and thermodynamic measurements
- Neutron diffraction
- Symmetry analysis
Main Results:
- A-type antiferromagnetic order was observed in CoTe6O13 below 19.5 K.
- A large off-diagonal magnetoelectric coefficient (41.2 ps/m) confirmed magnetic toroidicity.
- Significant orbital contribution to the magnetic moment was found.
Conclusions:
- CoTe6O13 exhibits significant magnetic toroidicity due to collinear spins and R-3 symmetry.
- This material shows promise for next-generation functional magnetoelectric devices.
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