Magnetically doped nanostructures can significantly enhance the interaction between the band carriers and the dopant atoms. Motivated by the demonstration of the enhanced sp-d exchange interaction in quantum confined structures with the increased stability of the exciton magnetic polaron, we report the quantitative and qualitative analyses of the exciton magnetic polaron formation in CdTe/Cd_1–xMn_xTe diluted magnetic quantum ring. The quantum ring with two different configurations: (i) the non-magnetic ring (CdTe) embedded in the semimagnetic Cd_1–xMn_xTe matrix and (ii) magnetically non-uniform quantum structures embedded with \(\mathrm {Mn^{2+}}\) ions both in the ring and in the barrier regimes, has been investigated for various mole fractions of the Mn dopants. The larger polaron binding energy (\(E_{{{\text{MP}}}}\)) of 23 meV is estimated for the 5% molar Mn contents compared to the other quantum confined systems made of CdMnTe. The magnetic field dependence of the MP energy and the corresponding polaron parameters such as exchange field, localization radius of the MP, and the degree of circular polarization induced by the external applied magnetic field at T = 4.2 K have been derived. The obtained results are in excellent agreement with the trend of the significant degradation of \(E_{{{\text{MP}}}}\) in an external magnetic field and with the contradictory tendencies of \(E_{{{\text{MP}}}}\) for the QR with configurations (i) and (ii), as reported from the time-integrated measurements based on selective excitation for the quantum systems made of CdMnTe and other DMS materials.

磁掺杂纳米结构可以显着增强带载流子和掺杂剂原子之间的相互作用。受量子限制结构中 sp-d 交换相互作用增强以及激子磁极化子稳定性增加的启发，我们报告了 CdTe/Cd _{1– x} Mn _x Te 稀释中激子磁极化子形成的定量和定性分析磁性量子环。具有两种不同配置的量子环：(i) 嵌入半磁性 Cd _{1– x} Mn _x Te 矩阵中的非磁性环 (CdTe)和 (ii) 嵌入\(\mathrm {Mn^ )的磁性非均匀量子结构对于不同摩尔分数的 Mn 掺杂剂，研究了环中和势垒区中的{2+}}\)离子。与其他由 CdMnTe 制成的量子限制系统相比，5% 摩尔 Mn 含量的极化子结合能 ( \(E_{{{\text{MP}}}}\)估计为 23 meV。导出了MP 能量的磁场依赖性以及相应的极化子参数，例如交换场、MP 的定位半径以及T = 4.2 K时外部施加磁场引起的圆极化程度。所得结果与在外部磁场中\(E_{{{\text{MP}}}}\)显着退化的趋势以及\(E_{{{\text {MP}}}}\)的矛盾趋势非常吻合{MP}}}}\)具有配置 (i) 和 (ii) 的 QR，根据基于由 CdMnTe 和其他 DMS 材料制成的量子系统的选择性激发的时间积分测量报告。