✦ LIBER ✦

Properties of excitons in a wide CdTe-based quantum well with irregular insertions of a fractional monolayer of ZnTe

✍ Scribed by Q.X. Zhao; M. Willander; N. Magnea

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 183 KB
Volume: 23
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.1997.0508

No coin nor oath required. For personal study only.

✦ Synopsis

The irregular short period CdTe/ZnTe superlattice structure is investigated by both stationary and time-resolved optical spectroscopy with and without an external magnetic field as a perturbation. This study is aimed to emphasize the properties of radiative excitonic recombination in a superlattice of this type in comparison with the excitons confined in a single QW structure. The decay time of the excitons is about 400 ps which is deduced from the time-resolved measurements. The g-factors of electrons and holes are obtained by the spin quantum beat measurements combined with Zeeman measurements. The experimental results show that the g-factors of holes in the irregular short period CdTe/ZnTe superlattice become dramatically different in comparison with the single CdTe/CdMgTe quantum wells.

📜 SIMILAR VOLUMES

Excitonic optical transitions as a probe

Excitonic optical transitions as a probe of self-organized growth of ZnTe (CdTe) islands in (001)-grown CdTe (ZnTe) quantum wells

✍ V. Calvo; P. Lefebvre; J. Allègre; A. Bellabchara; H. Mathieu; Q.X. Zhao; N. Mag 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 73 KB

Integer or half monolayers of CdTe have been deposited, every 20 monolayers, in 120monolayer wide ZnTe/(Zn,Mg)Te quantum wells, by molecular beam epitaxy or atomic layer epitaxy on nominal (001) surfaces of ZnTe substrates. Low-temperature direct and piezomodulated reflectivity as well as C.W. and t