计算物理 ›› 2006, Vol. 23 ›› Issue (1): 80-86.
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王平, 杨银堂, 杨燕
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WANG Ping, YANG Yin-tang, YANG Yan
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摘要: 基于对自身能带结构的分析以及各向同性弛豫时间近似法,采用三椭球等能面、抛物线性简化,建立了适于模拟n型6H-SiC电子霍耳迁移率和霍耳散射因子的解析模型,精确描述了不同散射机制对于6H-SiC低场电子输运特性的影响.计算结果与实测值有很好的一致性.
关键词: 6H碳化硅, 电子霍耳迁移率, 霍耳散射因子, 解析模型
Abstract: With analysis of conduction band structure and isotropic relaxation time approximation, an analytical model for the electron Hall mobility and Hall scattering factor of n-type 6H-SiC is proposed. The impact of different scattering mechanisms on the low field electron transport in 6H-SiC is illustrated clearly. Three ellipsoidal and parabolic constant energy surfaces simplification are used. The calculated results are in good agreement with physical measurements.
Key words: 6H-SiC, electron Hall mobility, Hall scattering factor, analytical model
中图分类号:
TN304.2
王平, 杨银堂, 杨燕. SiC电子霍耳迁移率的计算[J]. 计算物理, 2006, 23(1): 80-86.
WANG Ping, YANG Yin-tang, YANG Yan. A Calculation of Electron Hall Mobility in SiC[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2006, 23(1): 80-86.
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