Magnetic properties of the extended periodic Anderson model

Abstract

We study magnetic properties of the extended periodic Anderson model, which includes electron correlations within and between itinerant and localized bands. By combining dynamical mean-field theory with the numerical renormalization group we calculate the sublattice magnetization and the staggered susceptibility to determine the phase diagram in the particle-hole symmetric case. We find that two kinds of magnetically ordered states compete with the Kondo insulating state at zero temperature, which induces non-monotonic behavior in the temperature-dependent magnetization. It is furthermore clarified that a novel magnetic metallic state is stabilized at half filling by the competition between Hund's coupling and the hybridization.

arXiv comment4 pages, 4 figures, accepted for publication in JPSJ

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Cited by in corpus (5)

• Competition between Hund's coupling and Kondo effect in a one-dimensional extended periodic Anderson model
• Charge Kondo Effect and Superconductivity in the Falikov-Kimball model with the Pair Hopping
• Valence Fluctuations in the Extended Periodic Anderson Model at Finite Temperatures
• Magnetic phases of the periodic Anderson model in two dimensions
• Periodic Anderson model with Holstein phonons for the description of the Cerium volume collapse