تقرير
Interplay of itinerant electrons and Ising moments in a hybrid honeycomb quantum magnet TmNi$_3$Al$_9$
العنوان: | Interplay of itinerant electrons and Ising moments in a hybrid honeycomb quantum magnet TmNi$_3$Al$_9$ |
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المؤلفون: | Ge, H., Huang, C. J., Zhang, Q., Zhao, N., Wang, L., Yang, J., Fu, Y., Zhang, L., Song, Z. M., Li, T. T., Ding, F., Xu, J. B., Zhang, Y. F., Tong, X., Wang, S. M., Mei, J. W., Podlesnyak, A., Wu, L. S., Chen, Gang, Sheng, J. M. |
المصدر: | Physical Review B 106, 054434 (2022) |
سنة النشر: | 2022 |
المجموعة: | Condensed Matter |
مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
الوصف: | The interplay between itinerant electrons and local magnetic moments in quantum materials brings about rich and fascinating phenomena and stimulates various developments in the theoretical framework. In this work, thermodynamic, electric transport, and neutron diffraction measurements were performed on a newly synthesized honeycomb lattice magnet TmNi$_3$Al$_9$. Based on the experimental data, a magnetic field temperature phase diagram was constructed, exhibiting three essentially different magnetic regions. Below ${T_{\rm N}=2.97 \pm 0.02}\ \rm K$ Tm$^{3+}$ moments order antiferromagnetically in zero field. We found that the Tm$^{3+}$ ions form a pseudo-doublet ground state with the Ising-like moments lying normal to the two-dimensional honeycomb layers. Application of a magnetic field along the easy axis gradually suppresses the antiferromagnetic order in favor of an induced ferromagnetic state above the critical field ${B_c=0.92 \pm 0.05}\ \rm T$. In the vicinity of $B_c$, a strong enhancement of the quantum spin fluctuations was observed. The quantum Ising nature of the local moments and the coupling to itinerant electrons are discussed. Comment: 9 pages, 9 figures |
نوع الوثيقة: | Working Paper |
DOI: | 10.1103/PhysRevB.106.054434 |
URL الوصول: | http://arxiv.org/abs/2201.06915 |
رقم الأكسشن: | edsarx.2201.06915 |
قاعدة البيانات: | arXiv |
DOI: | 10.1103/PhysRevB.106.054434 |
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