Transport properties of a multichannel Kondo dot in a magnetic field
  We study the nonequilibrium transport through a multichannel Kondo quantum dot in the presence of a magnetic field. We use the exact solution of the two-loop renormalization group equation to derive analytical results for the g factor, the spin relaxation rates, the magnetization, and the differential conductance. We show that the finite magnetization leads to a coupling between the conduction channels which manifests itself in additional features in the differential conductance. 
Christoph B. M. H\"orig and Dirk Schuricht
cond-mat.str-el