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arXiv · 2206.08946

Tangle of Spin Double Helices in the Honeycomb Kitaev-$\Gamma$ Model

Jheng-Wei Li·Nihal Rao·Jan von Delft·Lode Pollet·Ke Liu
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Abstract

We investigate the ground-state nature of the honeycomb Kitaev-$\Gamma$ model in the material-relevant parameter regime through a combination of classical and quantum simulations. The classical model is imprinted with a tangle of highly structured spin double helices. This helix tangle exhibits $18$ inequivalent helical axes and features a spontaneous periodicity anisotropy and a ${\rm sgn}(\Gamma)$-determined chirality pattern. Infinite PEPS simulations with clusters up to $36$ sites identify hallmarks of this many-body order in the quantum spin-$1/2$ model. Our findings provide a fresh perspective of the Kitaev-$\Gamma$ model and enrich the physics of Kitaev magnetism.

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Jheng-Wei Li, Nihal Rao, Jan von Delft, Lode Pollet, Ke Liu. 2022-06-17. Tangle of Spin Double Helices in the Honeycomb Kitaev-$\Gamma$ Model. https://arxiv.org/abs/2206.08946

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