تقرير
Magnetic phase diagram and multiple field-induced states in the intermetallic triangular-lattice antiferromagnet NdAuAl$_4$Ge$_2$ with Ising-like spins
| العنوان: | Magnetic phase diagram and multiple field-induced states in the intermetallic triangular-lattice antiferromagnet NdAuAl$_4$Ge$_2$ with Ising-like spins |
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| المؤلفون: | Cong, Mengru, Ge, Han, Zhang, Lei, Ren, Weijun, Zhao, Nan, Li, Tiantian, Wang, Shanmin, Zhu, Jinlong, Mei, Jiawei, Zhang, Qiang, Sheng, Jieming, Gao, Fei, Li, Bing, Zhang, Zhidong, Wu, Liusuo |
| المصدر: | Physical Review MATERIALS 7, 024423 (2023) |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
| الوصف: | Geometrical frustration and the enhancement of strong quantum fluctuations in two-dimensional triangular antiferromagnets can lead to various intriguing phenomena. Here, we studied the spin-1/2 triangular lattice antiferromagnet NdAuAl$_4$Ge$_2$. Thermodynamic and transport properties, such as magnetization and specific heat together with the resistivity measurements were performed. In zero field, two successive phase transitions were observed at $T_{\rm N1}=1.75\pm 0.02$ K and $T_{\rm N2}=0.49\pm 0.02$ K, respectively. Under magnetic field, $\rm XXZ$-type anisotropy was revealed, with the moments pointing along the easy $c$ axis. For $B\parallel c$, multiple field-induced states were observed, and the magnetic phase diagram was established based on the specific heat and magnetization data. The temperature-dependent resistivity measurements indicate that NdAuAl$_4$Ge$_2$ is a good metal. It is very likely that both the long-range RKKY interactions and the geometrical frustration play an important roles in this case. Comment: 9 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevMaterials.7.024423 |
| URL الوصول: | http://arxiv.org/abs/2303.08661 |
| رقم الأكسشن: | edsarx.2303.08661 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevMaterials.7.024423 |
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