Kinetic Antiferromagnetism in the Triangular Lattice
arXiv:cond-mat/0505627 · doi:10.1103/PhysRevLett.95.087202
Abstract
We show that the motion of a single hole in the infinite 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.
10 pages, 2 figures, 5 supplementary figures; Figures fixed