Size dependence of plasmon absorption of Ni nanoparticles embedded in BaTiO3/SrTiO3 superlattices

作者：Xiong, Zhengwei; Chen, Xiangrong^*; Wang, Xuemin; Peng, Liping; Yan, Dawei; Lei, Hongwen; Fu, Yajun; Wu, Jianbang; Li, Zhenli; An, Xinyou; Wu, Weidong

来源：Applied Surface Science, 2013, 268: 524-528.

DOI：10.1016/j.apsusc.2012.12.161

• Laser molecular beam epitaxy
• Reflection high-energy electron diffraction
• Nanocrystals

The self-organized nickel nanoparticles deposited with different laser energy densities were embedded in barium titanate/strontium titanate superlattices using laser molecular beam epitaxy. The increasing sizes and irregular shapes of nickel nanoparticles were observed as the increase of laser energy density. By the absorption spectra investigation, the absorption peak presented red-shift and broadening phenomenon with the increase of the sizes. The results were explained by the calculation of real and imaginary permittivity of bulk nickel.

• 出版日期2013-3-1
• 单位中国工程物理研究院; 中国工程物理研究院激光聚变研究中心; 四川大学