Interaction between Mn Ions and Free Carriers in Quantum Wells with Asymmetrical Semimagnetic Barriers
D. M. Zayachuk, T. Slobodskyy, G. V. Astakhov, C. Gould{\i}nst, G., Schmidt, W. Ossau, L. W. Molenkamp
TL;DR
This study investigates how Mn ions interact with free carriers in ZnSe quantum wells with asymmetrical semimagnetic barriers, revealing effects on exchange integrals and complex formation affecting spin-flip transitions.
Contribution
It provides new insights into the interaction mechanisms between Mn ions and free carriers in asymmetrical quantum well structures with semimagnetic barriers.
Findings
Be incorporation decreases exchange integrals
Formation of Mn-based complexes affects energy levels
Spin-flip electron transitions are influenced by energy level degeneracy
Abstract
Investigations of photoluminescence (PL) in the magnetic field of quantum structures based on the ZnSe quantum well with asymmetrical ZnBeMnSe and ZnBeSe barriers reveal that the introduction of Be into semimagnetic ZnMnSe causes a decrease of the exchange integrals for conductive and valence bands as well as the forming of a complex based on Mn, degeneration of an energy level of which with the energy levels of the V band of ZnBeMnSe or ZnSe results in spin-flip electron transitions.
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