Kinetic Antiferromagnetism in the Triangular Lattice
Jan O Haerter, B Sriram Shastry
Abstract
We show that the motion of a single hole in the infinite U Hubbard model with frustrated hopping leads to weak metallic antiferromagnetism of kinetic origin. An intimate relationship is demonstrated between the simplest versions of this problem in 1 and 2 dimensions, and two of the most subtle many body problems, namely the Heisenberg Bethe ring in 1-d and the 2-dimensional triangular lattice Heisenberg antiferromagnet.
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