Can I read The Electronic Band Structure of Si/SiO2 Superlattices: A First-Principles Study on EtoBox?

The Electronic Band Structure of Si/SiO2 Superlattices: A First-Principles Study by M. P. J. Punkkinen; T. Korhonen; K. Kokko; I. J. Väyrynen is a Physics and Astronomy article available to read on EtoBox.

What is The Electronic Band Structure of Si/SiO2 Superlattices: A First-Principles Study about?

The mechanism of the visible luminescence in Si nanostructures is a matter of great interest. Lockwood et al. presented strong experimental evidence for the light emission due to quantum confinement in amorphous Si/SiO 2 superlattices in which silicon layers form two-dimensional quantum wells . Both the interface and the quantum confinement play a role in c-Si/SiO 2 superlattices according to Kanemitsu et al. . A recent theoretical study presents results according to which crystalline Si/SiO 2 superlattices show quantum confinement and a direct band gap . However, this investigation was performed by using fitted parameters within tight-binding methods. We have undertaken a systematic first-principles study concerning the electronic band structure of Si/SiO 2 superlattices. We used a full-potential LMTO method [4]. The exchange±correlation potential had the (LDA-) form of Perdew and Zunger [5]. The structural model consists of successive layers of crystalline Si and b-crystobalite along the [001] direction: {Si} m {SiO 2 } n ((m, n)-lattice) (see Fig. 1a in Ref. [3]). The same structural parameters as in Ref. [3] were used (especially a Si = 5.43 # e). Because of the computational l

Who reads The Electronic Band Structure of Si/SiO2 Superlattices: A First-Principles Study?

Author

M. P. J. Punkkinen; T. Korhonen; K. Kokko; I. J. Väyrynen

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0370-1972)

Published

1999

Language

EN

Field

Physics and Astronomy (Physical Sciences)