Abstract:The pump‐probe Kerr rotation measurement of Cd0.8Mn0.2Te has revealed that the resonant excitation of free excitons is a more suitable method for angular momentum transfer from laser pulse to the exciton magnetic polaron than the band‐to‐band excitation. In the case of band‐to‐band excitation, a formation of macroscopic spin alignment of exciton magnetic polarons is suppressed by heat originating from excess energy of hot electron‐hole pairs and scatterings among the electron‐hole pairs. By contrast, in the ca… Show more
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