Abstract
Results for the magneticeld-induced changes of the heavy quasiparticles in YbRh2Si2 are presented. The bands are determined by means of the Renormalized Band method. The progressive de-renormalization of the quasiparticles in the magnetic eld, as well as the many-body enhancement of the Zeeman splitting are accounted for, using eld-dependent quasiparticle parameters deduced from Numerical Renormalization Group studies.
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