Abstract
Quantum-mechanical modeling of ballistic transport in nanodevices usually requires solving the Schrdinger equation at multiple energy points within an energy band. To speed up the simulation and analysis, the asymptotic waveform evaluation is introduced in this paper. Using this method, the wave function is only rigorously solved at several sampled energy points, whereas those at other energies are computed through Pad approximation. This allows us to obtain the physical quantities over the whole energy band with very little computational cost. In addition, the accuracy is controllable by a complex frequency hopping algorithm. The validity and efficiency of the proposed method are demonstrated by detailed study of several multigate silicon nano-MOSFETs. © 2006 IEEE.
Recommended Citation
J. Z. Huang et al., "Efficient Simulation And Analysis Of Quantum Ballistic Transport In Nanodevices With AWE," IEEE Transactions on Electron Devices, vol. 59, no. 2, pp. 468 - 476, article no. 6096395, Institute of Electrical and Electronics Engineers, Feb 2012.
The definitive version is available at https://doi.org/10.1109/TED.2011.2176130
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Asymptotic waveform evaluation (AWE); complex frequency hopping (CFH); local density of states (LDOS); multigate MOSFET; nanodevices; quantum transport; Schrdinger equation
International Standard Serial Number (ISSN)
0018-9383
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Feb 2012
Comments
Research Grants Council, University Grants Committee, Grant 711508