Publication Date:
2015-02-24
Description:
Low-temperature photoluminescence and reflectance measurements were employed to study the optical transitions present in two-dimensional electron systems confined at Mg x Zn 1– x O/ZnO heterojunctions. Transitions involving A- and B-holes and electrons from the two lowest subbands formed within the confinement potential are detected. In the studied density range of 2.0–6.5 × 10 11 cm −2 , the inter-subband splitting is measured and the first excited electron subband is shown to be empty of electrons.
Print ISSN:
0003-6951
Electronic ISSN:
1077-3118
Topics:
Physics
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