Magnetic polarons in exciton luminescence of Cd_1-xMn_xTe

Evaluation of evidence for magnetic polarons inEuB6

“…Experimental evidence included photoluminescence spectra [24] and magneto-optical experiments as Spin Flip Raman Scattering [17,25,26]. The Raman scattering spectrum shows an inelastic peak at low frequencies (Stokes' shift) which, for the diluted magnetic semiconductors, depends as follows on polaronic properties: [16] ∆E =xJ…”

Magnetic Polaron Formation in Semimagnetic Semiconductor Heterostructures

“…[4]). With experimental findings on exciton magnetic polarons (EMPs) [5][6][7][8][9] there appeared a series of new questions connected with localization conditions of excitons and dynamics of spin organization in the polaron formation process. These specific features distinguish the exciton magnetic polarons from the BMPs: , (i) Localization area and, respectively, the energy of EMP ground state are not determined by the Coulomb potential of the impurity center, but depend on the exciton localization or self-localization conditions.…”

Transport and Magnetoresistance in Low Carrier Density Ferromagnets

“…Ferromagnetic polarons are familiar objects in the low temperature phases of antiferromagnets, and have been studied carefully in semi-magnetic semicon-ductors and rare earth chalcogenides [16,17]. They were discussed intensively in the past in the context of the Eu chalcogenides, which have ferromagnetic or antiferromagnetic couplings depending on the chalcogen, and on the carrier concentration [16].…”