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Determinants of interchain coupling properties of Te atomic chains
Jie Han1, Quan Ming Li2, Wang Gao3
1Key Laboratory of Automobile Materials, Department of Materials Science and Engineering, Ministry of Education, Jilin University, Changchun, 130022, China.
Scientific Reports
|February 23, 2022
Summary
The stacking mode and size significantly influence the stability of tellurium (Te) nanowires. Chirality and size are key to their electronic structures, crucial for nano electronic devices.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- The coupling effect in one-dimensional (1D) materials is vital for advanced applications like high-density memory and nanolasers.
- Understanding the factors governing this coupling effect in 1D materials is crucial but remains debated.
Purpose of the Study:
- Investigate the impact of chirality, size, and stacking mode on the stability and electronic properties of few-chain tellurium (Te) nanowires.
- Elucidate the primary determinants of coupling effects in Te nanowires.
Main Methods:
- Utilized first-principles computational methods.
- Analyzed the stability and electronic band structures of Te nanowires with varying parameters.
Main Results:
- Stacking mode and size were found to be dominant factors for nanowire stability.
- Chirality and size critically affect the electronic structures, attributed to quantum size effects and the helical Te chain structure.
Conclusions:
- The study provides insights into controlling the band gap of Te nanowires.
- Identified potential for n-type spin devices, laying groundwork for novel nano electronic device development.
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