电子
电子迁移率
散射
凝聚态物理
库仑
密度泛函理论
价(化学)
电子传输链
电子密度
材料科学
放松(心理学)
电子能带结构
态密度
化学物理
化学
计算化学
物理
量子力学
社会心理学
有机化学
生物化学
心理学
作者
Youngho Kang,Youngmi Cho,Seungwu Han
摘要
We theoretically investigate the electron transport mechanism in crystalline In-Ga-Zn oxides using the semi-classical transport theory. The site disorder of Ga and Zn atoms is treated based on the virtual crystal approximation. The valence difference between Ga3+ and Zn2+, modeled by screened Coulomb potential, plays a critical role in determining the total electron mobility. The temperature and carrier-density dependences of the calculated electron mobility are in excellent agreement with experimental data. The unusual behavior of electron mobility is explained based on the energy-dependent relaxation time and underlying band structure.
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