Luminescence of CdMnTe Crystals in Magnetic Field

Romuald BRAZIS 1,  Laima Barauskaite 1,  Marek Godlewski 2,3,  Vitaly Ivanov 2

1. Semiconductor Physics Institute, A.Gostauto 11, Vilnius LT-2600, Lithuania
2. Polish Academy of Sciences, Institute of Physics, al. Lotników 32/46, Warszawa 02-668, Poland
3. Cardinal Stefan Wyszynski University, College of Science, Warszawa, Poland

Abstract

The work is aimed at feasibility study of magnetically tunable light sources based on Cd1-xMnxTe crystals. Strong luminescence from the cleaved surfaces of crystals with the Mn mole fraction of x=0.2 and 0.3 has been observed experimentally under cw laser excitation at liquid helium temperatures, and the radiation spectrum evolution in magnetic fields up to 7 Tesla has been analyzed. The evolution has been found essentially different in the normal (Faraday) and transverse (Voigt) geometry revealing implications related to the non-zero incidence and emission angle. The implementation is discussed in term of self-organized magnetic nano-structures and exciton-polariton condensation at the cleaved crystal surface.

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Presentation: Poster at E-MRS Fall Meeting 2006, Symposium F, by Romuald BRAZIS
See On-line Journal of E-MRS Fall Meeting 2006

Submitted: 2006-05-14 18:18
Revised:   2006-05-14 18:30
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