Mott transition of the f-electron system in the periodic Anderson model with nearest neighbor hybridization
Theoretische Physik III, Elektronische Korrelationen und Magnetismus, Universität Augsburg,
86135 Augsburg, Germany
Revised: 8 June 2000
Published online: 15 September 2000
We show analytically that, under certain assumptions, the periodic Anderson model and the Hubbard model become equivalent within the dynamical mean field theory for quasiparticle weight . A scaling relation is derived which is validated numerically using the numerical renormalization group at zero temperature and quantum Monte Carlo simulations at finite temperatures. Our results show that the f-electrons of the half-filled periodic Anderson model with nearest neighbor hybridization get localized at a finite critical interaction strength Uc, also at zero temperature. This transition is equivalent to the Mott-transition in the Hubbard model.
PACS: 71.27.+a – Strongly correlated electron systems; heavy fermions / 71.10.Fd – Lattice fermion models (Hubbard model, etc.) / 71.30.+h – Metal-insulator transitions and other electronic transitions
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000