Quantum phases in two-dimensional frustrated spin-1/2 antiferromagnets

P. Sindzingre (1) , C. Lhuillier (1) , J. -B. Fouet (1)

1 LPTL - Laboratoire de Physique Théorique des Liquides

We describe four phases found in two-dimensional 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 likely conditions of their occurence outlined.

Domaines: Autre [cond-mat.other]

P. Sindzingre, C. Lhuillier, J. -B. Fouet. Quantum phases in two-dimensional frustrated spin-1/2 antiferromagnets. International Journal of Modern Physics B, 2003, 17, pp.5031-5039. ⟨hal-00118007⟩