1. High-resolution resonance spin-flip Raman spectroscopy of pairs of manganese ions in a CdTe quantum well
- Author
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J. Geurts, S. Elsässer, I. I. Ryzhov, V. M. Litviak, Tobias Kiessling, R. V. Cherbunin, A. Knapp, T. Wojtowicz, G. Karczewski, A. V. Koudinov, and S. Chusnutdinow
- Subjects
Physics ,Resonance ,02 engineering and technology ,Magnetic semiconductor ,021001 nanoscience & nanotechnology ,01 natural sciences ,symbols.namesake ,0103 physical sciences ,symbols ,Spin-flip ,Atomic physics ,010306 general physics ,0210 nano-technology ,Raman spectroscopy ,Spectroscopy ,Energy (signal processing) ,Raman scattering ,Quantum well - Abstract
We report the observation of tens of minor lines of the combinational spin-flip Raman scattering in a CdTe:Mn quantum well by means of the high-resolution optical spectroscopy. Classification of this manifold leads to four characteristic values of energy, that correspond to four different types of pair clusters of Mn ions: the nearest, second, third, etc., neighbors. All the four energies show up in a single experiment with a very high precision, providing experimental grounds for a deeper understanding of the $d\ensuremath{-}d$ exchange interactions in a diluted magnetic semiconductor and demonstrating the capacity of the employed method. The major (nearest-neighbor) exchange constant ${J}_{1}=6.15\ifmmode\pm\else\textpm\fi{}0.05$ K was found to consent with its previously reported value. Other detected characteristic energies are as follows ($\ifmmode\pm\else\textpm\fi{}0.05$ K): ${J}_{(2)}=1.80$ K, ${J}_{(3)}=1.39$ K, ${J}_{(4)}=0.81$ K. more...
- Published
- 2020
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