Illustration from Scientific Research

An excitonic representation of spin-exchange CM in Mn-doped PbSe/CdSe core/shell QDs. An exciton generated in the CdSe shell (X CdSe ) initiates the first step of spin-exchange CM, which is formation of the excited Mn state (Mn*) due to CdSeMn spin-exchange energy transfer (step 1). During step 2, Mn* undergoes spin-flip relaxation by creating two excitons in the PbSe core (X PbSe ) via the spin-exchange process depicted in a.

DOI