Abstract
The semimagnetic ternary semiconductor material ZnMnSe is a suitable candidate for the use in optoelectronic devices either as a spin aligner or a waveguiding layer. In our work we are studying the optical properties of Zn 1-xMnxSe layers grown on GaAs (001) substrates by molecular beam epitaxy. We present the complex dielectric function obtained by variable-angle spectroscopic ellipsometry in the photon energy range from 0.75 to 4.5 eV. Between 0.75 and 3.3 eV the experimental data are fitted with a critical-point parametric model. The energies of E0, E 0+Δ0, E1 and E 1+Δ1 critical points are given for ZnSe and Zn0.87Mn0.13Se.
Original language | English (US) |
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Pages (from-to) | 228-230 |
Number of pages | 3 |
Journal | Thin Solid Films |
Volume | 455-456 |
DOIs | |
State | Published - May 1 2004 |
Externally published | Yes |
Event | The 3rd International Conference on Spectroscopic Ellipsometry - Vienna, Austria Duration: Jul 6 2003 → Jul 11 2003 |
Keywords
- Critical points
- Dielectric properties
- ZnMnSe
- ZnSe
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry