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Updated: Jan 22, 2026
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Grafting Multiwalled Carbon Nanotubes with Polystyrene to Enable Self-Assembly and Anisotropic Patchiness
Published on: April 1, 2018
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First-principles investigation on cluster-assembled silicon nanotubes with Eu atoms encapsulation
1Shijiazhuang Institute of Technology, Shijiazhuang, 050228, China. chenzhaohua66@126.com.
Journal of Molecular Modeling
|July 19, 2019
Summary
We predicted novel endohedral europium-silicon structures (Eu@Si) and nanotubes (Eu@SiNTs). These materials exhibit significant magnetic properties, showing promise for spintronic devices and magnetic storage applications.
Area of Science:
- Computational materials science
- Solid-state chemistry
- Nanotechnology
Background:
- Endohedral metallofullerenes offer unique electronic and magnetic properties.
- Silicon-based nanostructures are actively researched for advanced applications.
Purpose of the Study:
- To predict and characterize novel endohedral europium-silicon dimers and nanotubes.
- To investigate their structural stability, electronic, and magnetic properties.
Main Methods:
- Density Functional Theory (DFT) calculations using the GGA (Generalized Gradient Approximation) level.
- Analysis of structural stability, electronic band structure, and magnetic moments.
Main Results:
- Two stable dimers, Eu2@Si32 and Eu2@Si28, were predicted, with central Eu atoms retaining a spin magnetic moment of approximately 6.9 μB.
- Europium incorporation induced sp2-like hybridizations in Si-Si bonds, enhancing cluster stability.
- Two types of assembled silicon nanotubes (Eu@SiNT-1 and Eu@SiNT-2) were formed, exhibiting metallic conductivity and a total magnetic moment of 14 μB.
Conclusions:
- The predicted Eu@Si dimers and Eu@SiNTs possess favorable electronic and magnetic characteristics.
- These novel structures hold potential for applications in future spintronic devices and high-density magnetic storage materials.
Keywords:
Cluster assembledDensity functional theoryElectronic structureMagnetic propertiesSilicon nanotubeMore Related Videos
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