Spin Related Spectroscopy of CdTe Based Quantum Dots
J.A. Gaja, T. Kazimierczuka, M. Gorycaa, M. Koperskia, A. Golnika, P. Kossackia, M. Nawrockia, P. Wojnarb and G. Karczewskib
a Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
b Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
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This work contains a selection of our recent experimental results in the field of the spin related spectroscopy of individual CdTe based quantum dots. After a short description of the sample growth and experimental methods, optical measurements of the charge state dynamics are presented. Then the influence of in plane anisotropy of the excitonic states of a quantum dot is discussed, followed by a description of experimental studies of information read out and writing on quantum dot spin states. In particular, spin memory of a single Mn++ ion embedded in a CdTe quantum dot is quantitatively assessed. In an outlook part, perspectives opened by recently developed ZnTe lattice matched Bragg reflectors are discussed.
DOI: 10.12693/APhysPolA.116.795
PACS numbers: 78.67.Hc, 71.70.Gm, 75.75.+a, 78.55.Et