DOAJ Open Access 2023

Kitaev spin-orbital bilayers and their moiré superlattices

Emilian Marius Nica Muhammad Akram Aayush Vijayvargia Roderich Moessner Onur Erten

Abstrak

Abstract We determine the phase diagram of a bilayer, Yao-Lee spin-orbital model with inter-layer interactions (J), for several stackings and moiré superlattices. For AA stacking, a gapped $${{\mathbb{Z}}}_{2}$$ Z 2 quantum spin liquid phase emerges at a finite J c. We show that this phase survives in the well-controlled large-J limit, where an isotropic honeycomb toric code emerges. For moiré superlattices, a finite-q inter-layer hybridization is stabilized. This connects inequivalent Dirac points, effectively ‘untwisting’ the system. Our study thus provides insight into the spin-liquid phases of bilayer spin-orbital Kitaev materials.

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials Atomic physics. Constitution and properties of matter

Penulis (5)

Emilian Marius Nica

Muhammad Akram

Aayush Vijayvargia

Roderich Moessner

Onur Erten

Format Sitasi

APA MLA BibTeX

Nica, E.M., Akram, M., Vijayvargia, A., Moessner, R., Erten, O. (2023). Kitaev spin-orbital bilayers and their moiré superlattices. https://doi.org/10.1038/s41535-023-00541-2

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Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.1038/s41535-023-00541-2
Akses: Open Access ✓