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Magnetic properties of the extended periodic Anderson model by Koga, Akihisa; Kawakami, Norio; Peters, Robert; Pruschke, Thomas is a scholarly article available to read on EtoBox.

What is Magnetic properties of the extended periodic Anderson model about?

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.

Author

Koga, Akihisa; Kawakami, Norio; Peters, Robert; Pruschke, Thomas

Published

2008

Language

EN