In-plane optical anisotropy of parabolic and half-parabolic Cd1−xMnxTe quantum wells

✍ Scribed by K Kowalik; A Kudelski; J.A Gaj; T Wojtowicz; O Krebs; P Voisin

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 123 KB
• Volume: 126
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/s0038-1098(03)00190-x

✦ Synopsis

We report an investigation of the in-plane anisotropy of parabolic (PQW) and half-parabolic (HPQW) Cd 12x Mn x Te quantum wells (QWs) grown by molecular beam epitaxy on (001) oriented GaAs substrates. For HPQW we obtain a good description using a microscopic model related to the atomic structure of interfaces. For PQW a strong anisotropy of excitonic reflectivity (not predicted by the model) is also observed. This result suggests that extrinsic contributions must be considered in realistic analysis of in-plane anisotropy of semiconductor quantum structures.