Time dependence of transmission in semiconductor superlattices
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Time delay in electron propagation through a finite periodic system such as a semiconductor superlattice is studied by direct numerical solution of the time-dependent Schrödinger equation. It is found that addition of an anti-reflection coating significantly reduces the time delay, in addition to increasing the transmissivity.
Version 3: revised sec III b., added appendix and refs. 10 pages, 11 figs. Version 2: major revision, especially pages 5-9; additional references, 9 pages, 11 figures. Version 1 was 7 pages, 11 figures
Version 3: revised sec III b., added appendix and refs. 10 pages, 11 figs. Version 2: major revision, especially pages 5-9; additional references, 9 pages, 11 figures. Version 1 was 7 pages, 11 figures