Heavy Quasiparticles in Yb Compounds: The Renormalized Band Approach |
| G. Zwicknagl
Institut fuer Mathematische Physik, TU Braunschweig, Mendelssohnstr. 3, 38106 Braunschweig, Germany |
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| Results for the magnetic-field-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 field, as well as the many-body enhancement of the Zeeman splitting are accounted for, using field-dependent quasiparticle parameters deduced from Numerical Renormalization Group studies. |
DOI: 10.12693/APhysPolA.126.286 PACS numbers: 71.10.+w, 71.10.Hf, 71.27.+a, 75.30.Mb |