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Field-induced 3- and 2-dimensional freezing in a quantum spin liquid

Y. Chen·Z. Honda·A. Zheludev·C. Broholm·K. Katsumata·S. M. Shapiro
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Abstract

Field-induced commensurate transverse magnetic ordering is observed in the Haldane-gap compound \nd by means of neutron diffraction. Depending on the direction of applied field, the high-field phase is shown to be either a 3-dimensional ordered Néel state or a short-range ordered state with dominant 2-dimensional spin correlations. The structure of the high-field phase is determined, and properties of the observed quantum phase transition are discussed.

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Y. Chen, Z. Honda, A. Zheludev, C. Broholm, K. Katsumata, S. M. Shapiro. 2000-09-14. Field-induced 3- and 2-dimensional freezing in a quantum spin liquid. https://doi.org/10.1103/physrevlett.86.1618

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