Related Experiment Video
Updated: May 19, 2026
08:45
Fabrication of Spatially Confined Complex Oxides
Published on: July 1, 2013
Oxidation-resilient superconductivity in a novel high-hardness superconductor: a first-principles study.
Wenhao Fan1, Rui Song1, Haiyan Lu1
1Science and Technology on Surface Physics and Chemistry Laboratory, P.O. Box 9-35, Jiangyou 621908, China. pkusongrui@pku.edu.cn.
Physical Chemistry Chemical Physics : PCCP
|March 31, 2025
Summary
This study explores CsCl-type niobium nitride (NbN), a superconducting material. Oxidation enhances its superconductivity and stability, making it promising for future applications.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Computational Chemistry
Background:
- Niobium nitride (NbN) is a vital superconducting material.
- Improving operating temperature and environmental stability of NbN devices is a key research area.
Purpose of the Study:
- To investigate the superconducting, mechanical, and electronic properties of CsCl-type NbN using first-principles calculations.
- To understand the impact of pressure and oxidation on NbN's properties.
Main Methods:
- First-principles computational methods were used.
- Superconducting, mechanical, and electronic properties were analyzed.
Main Results:
- CsCl-type NbN shows a high superconducting transition temperature (Tc) of 16 K and excellent hardness.
- High pressure decreases Tc due to phonon hardening.
- Oxidation enhances superconductivity, increasing Tc due to electron doping and Fermi level shift.
Conclusions:
- CsCl-type NbN is a promising material with high Tc and hardness.
- Oxidation offers a route to improve NbN superconductivity.
- The findings suggest further experimental investigation is warranted.
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