Anomalous Spin Dynamics of Hubbard Model on Honeycomb Lattices

Details Anomalous Spin Dynamics of Hubbard Model on Honeycomb Lattices Anomalous Spin Dynamics of Hubbard Model on Honeycomb Lattices

2009-11-16

arxiv.org/abs/0911.3002v1

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 12 figures

Scientific paper

In this paper, the honeycomb Hubbard model in optical lattices is
investigated using O(3) non-linear sigma model. A possible quantum non-magnetic
insulator in a narrow parameter region is found near the metal-insulator
transition. We study the corresponding dynamics of magnetic properties, and
find that the narrow region could be widened by hole doping.

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