Influence of electron–phonon interaction on soliton mediated spin–charge conversion effects in two-component polymer model Original Research Article

By mapping a Hubbard-like model describing a two-component polymer in the presence of strong enough electron–phonon interactions image onto the system of two coupled nonlinear Schrödinger equations with image symmetry group, some nontrivial correlations between topological solitons mediated charge Q and spin S degrees of freedom are obtained. Namely, in addition to a charge fractionalization and reentrant like behavior of both image and image, the model also predicts a decrease of soliton velocity with image as well as spin–charge conversion effects which manifest themselves through an explicit image dependence (with image being a mixing angle between spin-up and spin-down electron amplitudes). A possibility to observe the predicted effects in low-dimensional systems with charge and spin soliton carriers is discussed.