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Colors and Magnetism

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Related Experiment Video

Updated: Jun 8, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

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Single-molecule-magnet behavior in a Fe(12)Sm(4) cluster.

Yong-Fei Zeng¹, Guan-Cheng Xu, Xin Hu

¹Department of Chemistry and TKL of Metal and Molecule-based Materials Chemistry, Nankai University, Tianjin, 300071 Beijing, China.

Inorganic Chemistry

|October 2, 2010

Summary

The largest iron-lanthanide cluster, Fe(12)Sm(4), was synthesized, featuring the first samarium(III) single-molecule magnet. Additional complexes were created to explore magnetic properties.

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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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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

Area of Science:

Coordination Chemistry
Magnetism
Materials Science

Background:

Lanthanide-based molecular magnets are crucial for developing advanced magnetic materials.
Understanding the interplay between different metal ions is key to designing novel magnetic properties.

Purpose of the Study:

To synthesize and characterize the largest iron-lanthanide (Fe-Ln) cluster to date.
To investigate the magnetic properties of the novel Fe(12)Sm(4) complex, specifically its potential as a single-molecule magnet.
To elucidate the magnetic exchange interactions and anisotropy in Fe(12)Sm(4) through comparative studies.

Main Methods:

High-level synthesis of polynuclear Fe-Ln clusters.
Single-crystal X-ray diffraction for structural determination.
Magnetic susceptibility measurements (DC and AC) to probe magnetic behavior.

Main Results:

Successful synthesis of the unprecedented Fe(12)Sm(4) cluster, the largest Fe-Ln assembly reported.
Demonstration of Fe(12)Sm(4) as the first samarium(III)-based single-molecule magnet (SMM).
Synthesis of Fe(12)La(4) and Fe(12)Gd(4) analogs provided insights into magnetic exchange pathways and anisotropy origins.

Conclusions:

The Fe(12)Sm(4) complex represents a significant advancement in the field of molecular magnetism.
This work establishes a new platform for designing lanthanide-containing SMMs with tailored properties.
The findings contribute to a deeper understanding of magnetic interactions in complex polynuclear systems.