✦ LIBER ✦

Comparison between atomic layer epitaxy grown and molecular beam epitaxy grown CdTe/MnTe superlattices: a structural and optical study

✍ Scribed by F. Kany; J.M. Hartmann; H. Ulmer-Tuffigo; H. Mariette

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 209 KB
Volume: 23
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.1996.0352

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✦ Synopsis

Atomic layer epitaxy (ALE) is investigated for the growth of CdTe/MnTe superlattices. A systematic structural characterization (X-ray diffraction, transmission electron microscopy), together with a magneto-optical study (reflectivity and photoluminescence), demonstrate that:

(i) for MnTe ALE, all deposited Mn atoms are incorporated, so that no autoregulated growth mode can be obtained, in contrast with CdTe ALE, (ii) atomic layer epitaxy allows well-controlled CdTe/MnTe superlattices to be achieved but does not prevent the exchange between Cd and Mn atoms which occurs at the interfaces between CdTe and MnTe, as observed in CdTe/MnTe superlattices grown by conventional molecular beam epitaxy.

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