Field-induced magnetic phases in the Kitaev candidate Na$_3$Co$_2$SbO$_6$
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2025
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| author | Bestha, Kranthi Kumar Sahoo, Manaswini Francini, Niccolò Kluge, Robert Morrow, Ryan Maljuk, Andrey Wurmehl, Sabine Luther, Sven Skourski, Yurii Kühne, Hannes Mishra, Swarnamayee Geck, Jochen Brando, Manuel Büchner, Bernd Corredor, Laura T. Janssen, Lukas Wolter, Anja U. B. |
| author_facet | Bestha, Kranthi Kumar Sahoo, Manaswini Francini, Niccolò Kluge, Robert Morrow, Ryan Maljuk, Andrey Wurmehl, Sabine Luther, Sven Skourski, Yurii Kühne, Hannes Mishra, Swarnamayee Geck, Jochen Brando, Manuel Büchner, Bernd Corredor, Laura T. Janssen, Lukas Wolter, Anja U. B. |
| contents | We report a rich anisotropic magnetic phase diagram of Na$_3$Co$_2$SbO$_6$, a previously proposed cobaltate Kitaev candidate, based on field- and temperature-dependent magnetization, specific heat, and magnetocaloric effect studies. At low temperatures, our experiments uncover a low-lying $j_{\textrm{eff}} = \frac{1}{2}$ state with an antiferromagnetic ground state and pronounced in-plane versus out-of-plane anisotropy. The experimentally identified magnetic phases are theoretically characterized through classical Monte Carlo simulations within an extended Kitaev-Heisenberg model with additional ring exchange interactions. The resulting phase diagram reveals a variety of exotic field-induced magnetic phases, including double-$\textbf{q}$, $\frac{1}{3}$-AFM, zigzag, and vortex phases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_09282 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Field-induced magnetic phases in the Kitaev candidate Na$_3$Co$_2$SbO$_6$ Bestha, Kranthi Kumar Sahoo, Manaswini Francini, Niccolò Kluge, Robert Morrow, Ryan Maljuk, Andrey Wurmehl, Sabine Luther, Sven Skourski, Yurii Kühne, Hannes Mishra, Swarnamayee Geck, Jochen Brando, Manuel Büchner, Bernd Corredor, Laura T. Janssen, Lukas Wolter, Anja U. B. Strongly Correlated Electrons Materials Science Other Condensed Matter We report a rich anisotropic magnetic phase diagram of Na$_3$Co$_2$SbO$_6$, a previously proposed cobaltate Kitaev candidate, based on field- and temperature-dependent magnetization, specific heat, and magnetocaloric effect studies. At low temperatures, our experiments uncover a low-lying $j_{\textrm{eff}} = \frac{1}{2}$ state with an antiferromagnetic ground state and pronounced in-plane versus out-of-plane anisotropy. The experimentally identified magnetic phases are theoretically characterized through classical Monte Carlo simulations within an extended Kitaev-Heisenberg model with additional ring exchange interactions. The resulting phase diagram reveals a variety of exotic field-induced magnetic phases, including double-$\textbf{q}$, $\frac{1}{3}$-AFM, zigzag, and vortex phases. |
| title | Field-induced magnetic phases in the Kitaev candidate Na$_3$Co$_2$SbO$_6$ |
| topic | Strongly Correlated Electrons Materials Science Other Condensed Matter |
| url | https://arxiv.org/abs/2510.09282 |