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

Abstract

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.

9 pages, 3 figures, uses files ws-p9-75x6-50.cls and citation.sty (included) submitted for Conference Proceedings of QMBT 11, July 9-13 Manchester, UK

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