The impact of surface-roughness scattering on the low-field electron mobility in nano-scale Si MOSFETs

2017 ◽  
Vol 122 (11) ◽  
pp. 114303 ◽  
Author(s):  
Gokula Kannan ◽  
Dragica Vasileska
2019 ◽  
Vol 954 ◽  
pp. 51-59
Author(s):  
Xi Duo Hu ◽  
Cheng Ming Li ◽  
Shao Yan Yang

Abstract:Electron mobility limited by surface roughness scattering in free-standing GaAs thin ribbon with an internal parabolic quantum well caused by surface state is investigated in detail. Based on analyzing the parabolic quantum well including the energy subband level, wave function and the confined potential profile in the thin ribbon by solving Schrödinger and Poisson equations self-consistently, the electron mobility could be investigated. Conclusion indicates that remote surface roughness (RSR) of the thin ribbon will change the two dimensional electron gas (2DEG) mobility through the medium of barrier height fluctuation of the parabolic well in atomic scale. Calculation results reveal that the 2DEG mobility decreases with increasing roughness amplitude, which is characterized in terms of the surface roughness height and the roughness lateral size.


2019 ◽  
Vol 3 (7) ◽  
pp. 45-54 ◽  
Author(s):  
Enzo Ungersboeck ◽  
Viktor Sverdlov ◽  
Hans Kosina ◽  
Siegfried Selberherr

2007 ◽  
Vol 54 (9) ◽  
pp. 2204-2212 ◽  
Author(s):  
S.. Reggiani ◽  
E.. Gnani ◽  
A.. Gnudi ◽  
M.. Rudan ◽  
G.. Baccarani

2006 ◽  
Vol 88 (3) ◽  
pp. 032101 ◽  
Author(s):  
V. M. Polyakov ◽  
F. Schwierz

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