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arXiv · 1401.6605

Topological spin liquid phase in a low-dimensional organic molecular compound

C. Janani·J. Merino·I. P. McCulloch·B. J. Powell
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Abstract

We report the discovery of a correlated insulator with a bulk gap at two-thirds filling in a geometrically frustrated Hubbard model that describes the low-energy physics of Mo$_3$S$_7$(dmit)$_3$. This is very different from the Mott insulator expected at half-filling. We show that the insulating phase, which persists even for very weak electron-electron interactions ($U$), is adiabatically connected to the Haldane phase and is consistent with experiments on Mo$_3$S$_7$(dmit)$_3$

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C. Janani, J. Merino, I. P. McCulloch, B. J. Powell. 2014-11-21. Topological spin liquid phase in a low-dimensional organic molecular compound. https://doi.org/10.1103/physrevlett.113.267204

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