Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1554407 | Superlattices and Microstructures | 2010 | 7 Pages |
Abstract
Because it is too difficult to pick out the needed structures from the vast possible configurations, complex superlattices have not been studied well for a long time. In this paper, an inverse band structure (IBS) approach which combined genetic algorithm search method with an empirical spds* tight-binding energy band calculation to address this problem is presented. Needed direct energy band gaps of Ga(Al)As complex superlattices are found by using this approach. It can be found that the band gap value can be same for different superlattice structures, but other properties of these complex superlattices could be different.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Y.H. Zheng,