Can I read Mott transition of excitons in ZnSe studied by phase resolved reflection on EtoBox?

Mott transition of excitons in ZnSe studied by phase resolved reflection by Günter Manzke; Klaus Henneberger; Matthias Seemann; Heinrich Stolz is a Engineering article available to read on EtoBox.

What is Mott transition of excitons in ZnSe studied by phase resolved reflection about?

## Abstract The Mott transition of excitons in a semiconductor with increasing carrier density is in principle well understood as a consequence of screening of the Coulomb interaction between carriers. While the position of the exciton stays widely unchanged the exciton peak disappears due to band gap shrinkage. However, a more quantitative check of applied theoretical models for the screening and of the role of quantum kinetic effects in this process is still open.We demonstrate that the phase‐resolved reflection in shallow‐confined ZnSSe heterostructures opens the possibility of a detailed study of the Mott transition due to the appearance of pronounced interferences effects of propagating polariton modes. Our theoretical approach for the investigation of the influence of excited carriers on the dielectric susceptibility is based (i) on a quasi‐particle approximation for the carrier energies and damping, and (ii) on the semiconductor Bloch equations including dynamical screening and a quantum kinetic treatment of scattering. These manybody effects lead to drastic changes of both amplitude and phase of the reflected light: Jumps of the phase are steepened, show abrupt changes from

Who reads Mott transition of excitons in ZnSe studied by phase resolved reflection?

Author

Günter Manzke; Klaus Henneberger; Matthias Seemann; Heinrich Stolz

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 1862-6351)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)