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arXiv · 1903.01276

High-resolution Resonance Spin-flip Raman Spectroscopy of Pairs of Manganese Ions in CdTe

Cherbunin R. V.·Litviak V. M.·Ryzhov I. I.·Koudinov A. V.·Elsässer S.·Knapp A.·Kiessling T.·Geurts J.·Chusnutdinow S.·Wojtowicz T.·Karczewski G
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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-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 K was found to consent with its previously reported value. Other detected characteristic energies are as follows: J_{(2)} = 1.80 K, J_{(3)} = 1.39 K, J_{(4)} = 0.81 K.

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Cherbunin R. V., Litviak V. M., Ryzhov I. I., Koudinov A. V., Elsässer S., Knapp A., Kiessling T., Geurts J., Chusnutdinow S., Wojtowicz T., Karczewski G. 2019-03-04. High-resolution Resonance Spin-flip Raman Spectroscopy of Pairs of Manganese Ions in CdTe. https://doi.org/10.1103/physrevb.101.241301

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