Influence of strain distribution on the morphology evolution of a Ge/GeO2 core/shell nanoparticle confined in ultrathin Al2O3 thin film by surface oxidation*
Zhang Yinga), Huang Hong-Huaa), Liu Xiao-Shana), Luo Xing-Fanga), Yuan Cai-Leia)†, Ye Shuang-Lib)
       
Cross-sectional strain distributions of confined Ge/GeO2 core/shell nanoparticle at different surface oxidation stages: (a) the original stage, (b) the middle stage, (c) the later stage.