Exciton Magnetic Polaron Features in Photoluminescence Excitation Spectra of CdTe/(CdMn)Te Quantum Wells with High Mn Contents |
G. Mackh, W. Ossau, D.R. Yakovlev, G. Landwehr Physikalisches Institut der Universität Würzburg, Am Hubland, 97074 Würzburg, Germany T. Wojtowicz, G. Karczewski and J. Kossut Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland |
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Exciton magnetic polarons are studied in CdTe/Cd1-xMnxTe (0.4 ≤ x ≤ 0.8) quantum wells. The magnetic polaron formation leads to the appearance of an additional line in the photoluminescence excitation spectra, which can be employed to determine the Zeeman splittings more exactly than by using the free exciton peak. We find an overall increase in the polaron energy with increasing x in the whole range of Mn contents studied. |
DOI: 10.12693/APhysPolA.88.849 PACS numbers: 78.55.Et, 71.35.+z |