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arXiv · 1203.3127

Magnetic-field induced multiferroicity in a quantum critical frustrated spin liquid

F. Schrettle·S. Krohns·P. Lunkenheimer·A. Loidl·E. Wulf·T. Yankova·A. Zheludev
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Abstract

Dielectric spectroscopy is used to check for the onset of polar order in the quasi one-dimensional quantum spin system Sul-Cu2Cl4 when passing from the spin-liquid state into the ordered spiral phase in an external magnetic field. We find clear evidence for multiferroicity in this material and treat in detail its H-T phase diagram close to the quantum-critical regime.

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F. Schrettle, S. Krohns, P. Lunkenheimer, A. Loidl, E. Wulf, T. Yankova, A. Zheludev. 2012-03-14. Magnetic-field induced multiferroicity in a quantum critical frustrated spin liquid. https://doi.org/10.1103/physrevb.87.121105

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