Influence of magnetic structure distortions induced by Cu2+ impurity ions on the transport properties of excitons in the quasi-one-dimensional antiferromagnet CsMnCI3·2H2O

The characteristics of low-temperature exciton luminescence in the quasi-one-dimensional antiferromagnet CsMnCl3·2H2O doped with various concentrations of Cu2+ impurity ions are investigated. The quasi-one-dimensional migration of optical excitations in the vicinity of an impurity is observed as a result of the spin block being eliminated by distortion of the magnetic structure.