Reflectance difference spectroscopy: a powerful tool for in situ investigations of II-VI compounds with Mn

Reflectance difference spectroscopy (RDS) was employed for in situ investig ation during and upon the molecular beam epitaxy of II-VI compounds with Mn . In heavily p-doped ZnMnTe:N, at low content of magnetic ions and at growt h temperature it was possible to observe below and in the band gap region f eatures occurring from intra-Mn transitions. Furthermore, the overgrowth of Mn islands with mismatched materials was investigated. Reproducibility in size and shape of Mn-based nanostructures was achieved by tracing the forma tion process via RDS. (C) 2000 Elsevier Science S.A. All rights reserved.