Theory of Unconventional Superconductors : Cooper-Pairing Mediated by Spin Excitations

Dirk Manske (auth.), Dirk Manske (eds.)3540212299, 9783540212294

This book presents a theory for unconventional superconductivity driven by spin excitations. Using the Hubbard Hamiltonian and a self-consistent treatment of the spin excitations, the interplay between magnetism and superconductivity in various unconventional superconductors is discussed. In particular, the monograph applies this theory for Cooper-pairing due to the exchange of spin fluctuations to the case of singlet pairing in hole- and electron-doped high-Tc superconductors, and to triplet pairing in
Sr2RuO4. Within the framework of a generalized Eliashberg-like treatment, calculations of both many normal and superconducting properties as well as elementary excitations are performed. The results are related to the phase diagrams of the materials which reflect
the interaction between magnetism and superconductivity.

Table of contents :
Introduction….Pages 1-32
Theory of Cooper Pairing Due to Exchange of Spin Fluctuations….Pages 33-98
Results for High–T c Cuprates Obtained from a Generalized Eliashberg Theory: Doping Dependence….Pages 99-176
Results for Sr 2 RuO 4 ….Pages 177-200
Summary, Conclusions, and Critical remarks….Pages 201-210