Journal
PHYSICAL REVIEW B
Volume 80, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.195321
Keywords
cadmium compounds; diffusion; excitons; II-VI semiconductors; molecular beam epitaxial growth; photoluminescence; semiconductor quantum dots; wide band gap semiconductors; Zeeman effect
Funding
- SANDIE Network of Excellence
- Ministry of Science and Higher Education (Poland) [N202 050 32/1187]
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The growth of self-assembled CdTe quantum dots embedded in cubic MnTe by molecular beam epitaxy is reported. The dots are forced to form despite a small lattice mismatch of 2.3% between the dot and the barrier materials. Their properties are studied by means of time integrated and time resolved photoluminescence at various temperatures and magnetic fields. We demonstrate a considerable diffusion of Mn ions from the MnTe barrier into nominally nonmagnetic CdTe quantum dot, which is manifested as an enhancement of their magneto-optical effects, such as the Zeeman splitting of excitonic levels in the dots.
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