ACTA

Spin Related Spectroscopy of CdTe Based Quantum Dots

J.A. Gaj^a, T. Kazimierczuk^a, M. Goryca^a, M. Koperski^a, A. Golnik^a, P. Kossacki^a, M. Nawrocki^a, P. Wojnar^b and G. Karczewski^b
^aInstitute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
^bInstitute 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