Exact diagonalization Studies of Two-dimensional Frustrated Antiferromagnet Models
C. Lhuillier, P. Sindzingre, J. -B. Fouet
Abstract
We describe the four kinds of behavior found in two-dimensional isotropic quantum antiferromagnets. Two of them display long range order at T=0: the Néel state and the Valence Bond Crystal. The last two are Spin-Liquids. Properties of these different states are shortly described and open questions are underlined.
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