The role of nitrogen-nitrogen pairs in the deviation of the GaAsN lattice parameter from Vegard’s law

• Main Authors: Wang, S. Z., Yoon, Soon Fatt, Fan, Weijun, Loke, Wan Khai, Ng, T. K.
• 其他作者: School of Electrical and Electronic Engineering
• 格式: Article
• 語言: English
• 出版: 2013
• 主題: DRNTU::Engineering::Electrical and electronic engineering
• 在線閱讀: https://hdl.handle.net/10356/100834; http://hdl.handle.net/10220/17960

We propose several physical mechanisms that may account for the difference between the nitrogen composition in GaAsN materials measured by secondary ion mass spectroscopy and x-ray diffraction. A simplified model proposed here proves that Vegard’s law remains valid as long as all nitrogen atoms i...