Magnetic ion relaxation time distribution within a quantum well

Time-resolved optically detected magnetic resonance (ODMR) is a valuable technique to study the local deformation of the crystal lattice around magnetic ion as well as the ion spin relaxation time. Here we utilize selective Mn-doping to additionally enhance the inherent locality of the ODMR techniqu...

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Bibliographic Details
Published in:arXiv.org 2023-07
Main Authors: Łopion, Aleksandra, Bogucki, Aleksander, Kraśnicki, Wiktor, Połczyńska, Karolina E, Pacuski, Wojciech, Kazimierczuk, Tomasz, Golnik, Andrzej, Kossacki, Piotr
Format: Article
Language:English
Subjects:
Carrier density
Crystal lattices
Electric fields
Magnetic induction
Magnetic resonance
Manganese ions
Quantum wells
Relaxation time
Spin-lattice relaxation
Wave functions
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Summary:Time-resolved optically detected magnetic resonance (ODMR) is a valuable technique to study the local deformation of the crystal lattice around magnetic ion as well as the ion spin relaxation time. Here we utilize selective Mn-doping to additionally enhance the inherent locality of the ODMR technique. We present the time-resolved ODMR studies of single {(Cd,Mg)Te/(Cd,Mn)Te} quantum wells (QWs) with manganese ions located at different positions along the growth axis -- in the center or on the sides of the quantum well. We observe that spin-lattice relaxation of Mn\(^{2+}\) significantly depends on the ion-carrier wavefunction overlap at low-magnetic fields. Interestingly, the effect is clearly observed in spite of very low carrier density, which suggests the potential for control of the Mn\(^{2+}\) ion relaxation rate by means of the electric field in future experiments.
ISSN:2331-8422
DOI:10.48550/arxiv.2205.02890