Application of an efficient algorithm for solving the one‐band effective mass equation self‐consistently in the modelling of some low‐dimensional structure devices
作者:
Stephen P. Wilson,
Duncan W. E. Allsopp,
Christopher G. Morton,
期刊:
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields
(WILEY Available online 1992)
卷期:
Volume 5,
issue 1
页码: 23-39
ISSN:0894-3370
年代: 1992
DOI:10.1002/jnm.1660050105
出版商: John Wiley&Sons, Ltd
数据来源: WILEY
摘要:
AbstractAn efficient algorithm is presented for the self‐consistent numerical solution of the single‐band effective mass equation. This algorithm has a different form depending on whether the effective mass is modelled as continuous or piecewise continuous. Coupled with a Poisson solver, an established algorithm is applied for the attainment of self‐consistency. The rate of convergence to a self‐consistent solution is investigated, and the solvers are applied to three different structures to demonstrate its versatility and robustness. The first of these is a nominally undoped quantum well AlGaAs/GaAs heterostructure, the second a doubly δ‐doped GaAs homostructure and lastly a quasi‐square well modulation‐doped field effect transistor. The algorithm is of sufficient efficiency so as to allow the software to run reasonably quickly on a modern
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