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Segmented band mechanism for itinerant ferromagnetism
C D Batista1, J Bonca, J E Gubernatis
1Center for Nonlinear Studies and Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
Physical Review Letters
|May 15, 2002
Abstract:
We introduce a novel mechanism for itinerant ferromagnetism, which is based on a simple two-band model, and, by using numerical and analytical methods, we show that the periodic Anderson model contains this mechanism. We propose that the mechanism, which does not assume an intra-atomic Hund's coupling, is present in both the iron group and some f electron compounds.