title: Strong enhancement of superconducting T(c) in ferromagnetic phases.
abstract: It is shown that the critical temperature for spin-triplet, p-wave superconductivity mediated by spin fluctuations is generically much higher in a Heisenberg ferromagnetic phase than in a paramagnetic one, due to the coupling of the magnons to the longitudinal magnetic susceptibility. Together with the tendency of the low-temperature ferromagnetic transition in very clean Heisenberg magnets to be of first order, this qualitatively explains the phase diagram recently observed in UGe(2).
authors.affiliation: Institute for Physical Science and Technology, Department of Physics, University of Maryland, College Park, MD 20742, USA.
authors.forename: T R
authors.initials: TR
authors.lastname: Kirkpatrick
authors.forename: D
authors.initials: D
authors.lastname: Belitz
authors.forename: T
authors.initials: T
authors.lastname: Vojta
authors.forename: R
authors.initials: R
authors.lastname: Narayanan