Microscopic theory of superconductive ferromagnets

With the discovery of HTSC ferromagnets, with T-c `s typically four times smaller than the Curie temperature, there is growing interest in filamentary models, which explain this phenomenon nonperturbatively. The author's filamentary model has been developed since 1987 to explain HTSC in general, and readily explains all aspects of HTSC in specific materials such as the superconductive ferromagnet RuSr2GdCu2O8-delta.