تقرير
Out-of-plane magnetic phase diagram of Kitaev quantum spin liquid candidate Na2Co2TeO6
| العنوان: | Out-of-plane magnetic phase diagram of Kitaev quantum spin liquid candidate Na2Co2TeO6 |
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| المؤلفون: | Zhang, Shengzhi, Lee, Sangyun, Brosha, Eric, Huang, Qing, Zhou, Haidong, Zapf, Vivien S., Lee, Minseong |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Other Condensed Matter, Quantum Physics |
| الوصف: | We have investigated the magnetic properties and mapped out the phase diagram of the honeycomb magnet Na2Co2TeO6 with Co 3d7 in out-of-plane magnetic fields. This material has previously been proposed to show nearest-neighbor Kitaev interactions between Co spins and maybe even Kitaev quantum spin liquid behavior in high fields. At low magnetic fields, we observe a thermal phase transition at TN = 27 K, transitioning from a paramagnetic state to a canonical ferrimagnetic state. Under the application of magnetic fields, a spin flop-like phase transition occurred before saturation of J = 1/2 between 10 K and TN. Below 10 K, a peak-dip-peak structure emerges between 10 and 17 T in the magnetic susceptibility (dM/dH) before the magnetic saturation, reminiscent of magnetic plateau behavior. The measurement of the magnetocaloric effect also shows dip-peak-dip behavior in this field range. Our data can be explained by an XXZ model with a single ion anisotropy and possibly small Kitaev and {\Gamma} exchange interactions. We also unambiguously determined the magnetization saturation field that helps constrain the energy scale of the exchange interactions Comment: LA-UR-24-24990 |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.13935 |
| رقم الأكسشن: | edsarx.2405.13935 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |