Excitonic influences on the anticrossing gap of Wannier–Stark levels in a wide well superlattice

✍ Scribed by Hansjörg Kümmel; Rainer Till; Alfred Philipp

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 261 KB
• Volume: 28
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1006/spmi.1999.0820

✦ Synopsis

In this paper we compare different theoretical calculations with experimental data of anticrossings of a wide well semiconductor superlattice in the Wannier-Stark regime. Calculations have been performed by using a variation method and a numerical method. For the variation method we used different approaches to minimize energy. With the numerical model, continuum states were calculated and anticrossing of 1s states with continuum states were found. Calculations have been performed for h1e1(0)-h1e2(-1) and h1e1(1)-h1e2(0) anticrossings and are compared with data from photocurrent experiments.