Strong-coupling theory of magnetic-exciton-mediated superconductivity in UPd${}_2$Al${}_3$

P. McHale, P. Thalmeier, P. Fulde

There is compelling evidence from inelastic-neutron-scattering and tunneling experiments that the heavy-fermion superconductor UPd${}_2$Al${}_3$ can be understood as a dual system cons…