تقرير
Quantum spin liquid in the Ising triangular-lattice antiferromagnet neodymium heptatantalate
| العنوان: | Quantum spin liquid in the Ising triangular-lattice antiferromagnet neodymium heptatantalate |
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| المؤلفون: | Arh, T., Sana, B., Pregelj, M., Khuntia, P., Jagličić, Z., Le, M. D., Biswas, P., Ozarowski, A., Zorko, A. |
| المصدر: | Nat. Mater. 21, 416 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
| الوصف: | Disordered magnetic states known as spin liquids are of paramount importance in both fundamental and applied science. A classical state of this kind was predicted for the Ising antiferromagnetic triangular model more than half a century ago, while additional non-commuting exchange terms were proposed to induce its quantum version -- a quantum spin liquid. These predictions have not been yet confirmed experimentally. Here we report a discovery of such a state in the structurally perfect triangular-lattice antiferromagnet NdTa$_7$O$_{19}$. Its magnetic ground state is characterized by spin-1/2 degrees of freedom with Ising-like interactions and gives rise to low-frequency spin excitations persisting down to the lowest temperatures. Our study demonstrates the key role of strong spin-orbit coupling in stabilizing spin liquids that result from magnetic anisotropy and highlights the large family of rare-earth (RE) heptatantalates RETa$_7$O$_{19}$ as a novel framework for realization of these states, which represent a promising platform for quantum applications. Comment: This is the initially submitted version of the manuscript, the considerably extended and revised published version is available online at https://doi.org/10.1038/s41563-021-01169-y |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1038/s41563-021-01169-y |
| URL الوصول: | http://arxiv.org/abs/2201.01057 |
| رقم الأكسشن: | edsarx.2201.01057 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1038/s41563-021-01169-y |
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