Band offset determination in ZnSe-based heterostructures involving ZnBeSe

M. Kim, C. S. Kim, Sang Hoon Lee, J. K. Furdyna, M. Dobrowolska

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Magneto-transmission measurements were carried out on a series of ZnMnSe/ZnBeSe quantum wells (QWs) in order to determine the band offset of ZnBeSe relative to ZnSe. We observed strong transitions from the ground state of the valence band to that of the conduction band in this system. The transition energy was observed to systematically increase with increasing Be concentration in the ZnBeSe barrier. Transitions also exhibited a large Zeeman shift due to the presence of Mn in the well layer. We calculated transition energies and their magnetic field dependence for this system using the 8-band k · p model, in which the valence band offset (VBO) was the only fitting parameter. By comparing the experimental results with the calculations we conclude that the chemical VBO between ZnSe and ZnBeSe corresponds to approximately 40% of the band gap difference.

Original languageEnglish
Pages (from-to)325-329
Number of pages5
JournalJournal of Crystal Growth
Volume214
DOIs
Publication statusPublished - 2000 Jun 2
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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