Publications by authors named "Vladimir L Korenev"
Optical alignment and optical orientation of excitons are studied experimentally on an ensemble of core/shell CdSe/CdS colloidal nanoplatelets. Linear and circular polarization of photoluminescence during resonant excitation of excitons is measured at cryogenic temperatures and with magnetic fields applied in the Faraday geometry. The developed theory addresses the optical alignment and optical orientation of excitons in colloidal nanocrystals, taking into account both bright and dark exciton states in the presence of strong electron-hole exchange interaction and the random in-plane orientation of nanoplatelets within the ensemble.
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- Hybrid structures that combine ferromagnetic (FM) materials and semiconductors hold significant promise for advancements in spintronics technology.* -
- A new approach has been developed to investigate spin-dependent transport in a specific type of quantum well (QW) that utilizes GaMnAs and a thin GaAs barrier.* -
- The study employs a combination of spin electromotive force measurements and photoluminescence detection, which proves effective in analyzing these hybrid structures and can be applied to other emerging materials, including 2D van der Waals materials.*
Article Synopsis
- In a hybrid structure made of Fe/(Cd,Mg)Te/CdTe quantum wells, researchers found both short-range and long-range ferromagnetic proximity effects happening at the same time.
- Short-range effects affect conduction band electrons through their wave function overlap with iron (Fe) film, while long-range effects influence holes bound to shallow acceptors without wave function overlap.
- The fact that both effects exist together indicates a complex spin texture in the quantum well, suggesting different ways electrons and holes interact with ferromagnetic materials.