# Superconductivity from doping a spin-liquid insulator: A simple one-dimensional example.

@article{Fabrizio1996SuperconductivityFD, title={Superconductivity from doping a spin-liquid insulator: A simple one-dimensional example.}, author={Fabrizio}, journal={Physical review. B, Condensed matter}, year={1996}, volume={54 14}, pages={ 10054-10060 } }

We study the phase diagram of a one-dimensional Hubbard model where, in addition to the standard nearest neighbor hopping $t$, we also include a next-to-nearest neighbor hopping $t'$. For strong enough on-site repulsion, this model has a transition at half filling from a magnetic insulator with gapless spin excitations at small $t'/t$ to a dimerized insulator with a spin gap at larger $t'/t$. We show that upon doping this model exhibits quite interesting features, which include the presence of… Expand

#### 31 Citations

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