Ground state of a two dimensional quasiperiodic antiferromagnet

Details Ground state of a two dimensional quasiperiodic antiferromagnet Ground state of a two dimensional quasiperiodic antiferromagnet

2004-09-28

arxiv.org/abs/cond-mat/0409711v1

Physics

Condensed Matter

Strongly Correlated Electrons

15 pages including 15 figures

Scientific paper

10.1103/PhysRevB.71.115101

We consider the spin 1/2 Heisenberg antiferromagnet on a two dimensional quasiperiodic tiling. The T=0 state is long range ordered, with an inhomogeneous distribution of the staggered moment. An approximate real space renormalization scheme first developed for the square lattice is generalized and used to obtain information on the ground state energy as well as the distribution of local correlations in the quasicrystal.

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