Related Experiment Video
Updated: Feb 25, 2026
09:06
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
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Homochiral toroidal spin state in Dy(III)-based single-molecule toroics
Zhenhua Zhu1, Xu Ying1,2, Langit Cahya Adi3
1State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P. R. China.
Nature Chemistry
|February 23, 2026
Summary
Researchers developed enantiopure chiral dysprosium triangles that exhibit a toroidal ground state. This breakthrough advances single-molecule toroidal materials for future data storage and spintronic applications.
Area of Science:
- Molecular Magnetism
- Chiral Materials Science
- Nanotechnology
Background:
- Single-molecule toroidal materials combine spin and chirality for advanced applications.
- Ligand design and coordination chemistry have advanced toroidal spin state design.
- Achieving homochiral magnetic vortex configurations remains a key challenge.
Purpose of the Study:
- To create enantiopure chiral dysprosium triangles.
- To induce spin homochirality through structural chirality.
- To investigate the toroidal ground state and magneto-chiral properties.
Main Methods:
- Synthesis of enantiopure chiral dysprosium triangles.
- µ-SQUID magnetometry for magnetic characterization.
- Ab initio calculations for theoretical analysis.
- Magneto-chiral dichroism spectroscopy for probing spin-chirality coupling.
Main Results:
- Enantiopure chiral dysprosium triangles were successfully synthesized.
- Structural chirality induced spin homochirality.
- A non-coplanar spin texture with a toroidal ground state was evidenced at low temperatures.
- Unusual magneto-chiral behaviors were observed below 4.5 K.
Conclusions:
- Chiral dysprosium triangles provide a route to homochiral spin configurations.
- The study demonstrates a toroidal ground state in molecular materials.
- These findings pave the way for novel toroidal spintronic and magnetoelectric devices.
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