Full band Monte Carlo investigation of electron transport in strained Si grown on Si1-xGex substrates

被引:31
|
作者
Bufler, FM
Graf, P
Keith, S
Meinerzhagen, B
机构
[1] Inst. F. Theor. Elektrotech. M., Universität Bremen
关键词
D O I
10.1063/1.119259
中图分类号
O59 [应用物理学];
学科分类号
摘要
In-plane drift velocities determined by full band Monte Carlo simulations and drift mobility calculations are reported for electrons in strained Si grown on Si1-xGex substrates up to x=0.4 at 77 and 300 K. Drift mobilities of 28200 cm(2)/(V s) at 77 K and 2230 cm(2)/(V s) at 300 K are found for x=0.3. Strain enhances the drift velocity significantly only below electric fields of about 50 kV/cm. At 77 K the Gunn effect is predicted to occur above 15 kV/cm. (C) 1997 American Institute of Physics.
引用
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页码:2144 / 2146
页数:3
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