中国物理B ›› 2019, Vol. 28 ›› Issue (6): 66804-066804.doi: 10.1088/1674-1056/28/6/066804
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
Ya-Mei Dou(窦亚梅), Wei-Hua Han(韩伟华), Yang-Yan Guo(郭仰岩), Xiao-Song Zhao(赵晓松), Xiao-Di Zhang(张晓迪), Xin-Yu Wu(吴歆宇), Fu-Hua Yang(杨富华)
Ya-Mei Dou(窦亚梅)1,2, Wei-Hua Han(韩伟华)1,2, Yang-Yan Guo(郭仰岩)1,2, Xiao-Song Zhao(赵晓松)1,2, Xiao-Di Zhang(张晓迪)1,2, Xin-Yu Wu(吴歆宇)1,2, Fu-Hua Yang(杨富华)1,2,3
摘要:
We have investigated the temperature-dependent effective mobility characteristics in impurity band and conduction subbands of n-doped silicon junctionless nanowire transistors. It is found that the electron effective mobility of the first subband in 2-fold valleys is higher than that of the second subband in 4-fold valleys. There exists a maximum value for the effective subband mobilities at low temperatures, which is attributed to the increase of thermally activated electrons from the ionized donors in the impurity band. The experimental results indicate that the effective subband mobility is temperature-dependent on the electron interactions by thermal activation, impurity scattering, and intersubband scattering.
中图分类号: (Quantum wires (patterned in quantum wells))