Characterization of Interfaces in Semimagnetic Quantum Wells |
G. Schmitt, B. Kuhn-Heinrich, U. Zehnder, W. Ossau, T. Litz, A. Waag and G. Landwehr Physikalisches Institut der Universität Würzburg, Am Hubland, 97074 Würzburg, Germany |
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The interfaces between nonmagnetic CdTe quantum wells and semimagnetic barriers of Cd1-xMnxTe were investigated for several well widths by low temperature photoluminescence and photoluminescence excitation spectroscopy. Specially designed Cd1-xMnxTe/CdTe/Cd1-yMgyTe structures enable us to distinguish the quality of the semimagnetic normal and inverted interfaces. The normal interface shows to have a better structural quality than the inverted interface. |
DOI: 10.12693/APhysPolA.88.897 PACS numbers: 78.55.Et, 78.66.-w |