Inelastic Neutron Scattering of the layered Kitaev ferromagnet Li$_3$Co$_2$SbO$_6$
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866916052313571328 |
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| author | Basit, Abdul Mole, Richard A. Brown, Alex J. Liu, Jiatu Ling, Chris D. Rachel, Stephan |
| author_facet | Basit, Abdul Mole, Richard A. Brown, Alex J. Liu, Jiatu Ling, Chris D. Rachel, Stephan |
| contents | Cobalt-based quantum magnets forming layered honeycomb arrangements have attracted much attention recently, as they are considered as a potential platform for materials with exotic Kitaev spin exchange. Amongst the discussed candidate materials are Na$_3$Co$_2$SbO$_6$ and Na$_2$Co$_2$TeO$_6$, both possessing a low-temperature ground state with magnetic zigzag ordering, similar to Na$_2$IrO$_3$ and $α$-RuCl$_3$. Here we report inelastic neutron scattering experiments on the quantum magnet Li$_3$Co$_2$SbO$_6$, which features ferromagnetic honeycomb planes with opposite magnetizations in neighboring planes. By comparing with linear spin wave theory, we show that the magnetic properties of Li$_3$Co$_2$SbO$_6$ can be well-modelled by an extended Kitaev--Heisenberg model, establishing it as a Kitaev-ferromagnet, or more specifically, as a Kitaev A-type antiferromagnet. Our analysis is complemented by magnetic field measurements and simulations. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2605_27518 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Inelastic Neutron Scattering of the layered Kitaev ferromagnet Li$_3$Co$_2$SbO$_6$ Basit, Abdul Mole, Richard A. Brown, Alex J. Liu, Jiatu Ling, Chris D. Rachel, Stephan Strongly Correlated Electrons Cobalt-based quantum magnets forming layered honeycomb arrangements have attracted much attention recently, as they are considered as a potential platform for materials with exotic Kitaev spin exchange. Amongst the discussed candidate materials are Na$_3$Co$_2$SbO$_6$ and Na$_2$Co$_2$TeO$_6$, both possessing a low-temperature ground state with magnetic zigzag ordering, similar to Na$_2$IrO$_3$ and $α$-RuCl$_3$. Here we report inelastic neutron scattering experiments on the quantum magnet Li$_3$Co$_2$SbO$_6$, which features ferromagnetic honeycomb planes with opposite magnetizations in neighboring planes. By comparing with linear spin wave theory, we show that the magnetic properties of Li$_3$Co$_2$SbO$_6$ can be well-modelled by an extended Kitaev--Heisenberg model, establishing it as a Kitaev-ferromagnet, or more specifically, as a Kitaev A-type antiferromagnet. Our analysis is complemented by magnetic field measurements and simulations. |
| title | Inelastic Neutron Scattering of the layered Kitaev ferromagnet Li$_3$Co$_2$SbO$_6$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2605.27518 |