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arXiv · 1003.3940

Chiral order and electromagnetic dynamics in one-dimensional multiferroic cuprates

Shunsuke Furukawa·Masahiro Sato·Shigeki Onoda
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Abstract

We show by unbiased numerical calculations that the ferromagnetic nearest-neighbor exchange interaction stabilizes a vector spin chiral order against the quantum fluctuation in a frustrated spin-1/2 chain relevant to multiferroic cuprates, LiCu2O2 and LiCuVO4. Our realistic semi-classical analyses for LiCu2O2 resolve controversies on the helical magnetic structure and unveil the pseudo-Nambu-Goldstone modes as the origin of experimentally observed electromagnons.

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Shunsuke Furukawa, Masahiro Sato, Shigeki Onoda. 2010-11-24. Chiral order and electromagnetic dynamics in one-dimensional multiferroic cuprates. https://doi.org/10.1103/physrevlett.105.257205

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