Report
Coupling of optical phonons with Kondo effect and magnetic orders in antiferromagnetic Kondo lattice CeAuSb$_2$
| العنوان: | Coupling of optical phonons with Kondo effect and magnetic orders in antiferromagnetic Kondo lattice CeAuSb$_2$ |
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| المؤلفون: | Zhao, Yin-Zou, Wu, Qi-Yi, Zhang, Chen, Chen, Bo, Xia, Wei, Song, Jiao-Jiao, Yuan, Ya-Hua, Liu, Hao, Wu, Fan-Ying, Ye, Xue-Qing, Zhang, Hong-Yi, Huang, Han, Liu, Hai-Yun, Duan, Yu-Xia, Guo, Yan-Feng, He, Jun, Meng, Jian-Qiao |
| المصدر: | Phys. Rev. B 108, 075115(2023) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
| الوصف: | Ultrafast optical spectroscopy was used to investigate the ultrafast quasiparticle dynamics of antiferromagnetic Kondo lattice CeAuSb$_2$ as a function of temperature and fluence. Our results reveal (i) the opening of a narrow hybridization gap ($\Delta$ $\sim$ 4.5 meV) near the Fermi level below the coherence temperature $T^*$ $\approx$ 100 K, (ii) the coupling of coherent phonon modes with Kondo effect and magnetic orders, leading to the frequencies anomaly at the characteristic temperatures, and (iii) a possible photoinduced nonthermal phase transition. Our observations thus shed light on the hybridization dynamics and magnetic orders in heavy fermion systems. Comment: 6 pages with 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.108.075115 |
| URL الوصول: | http://arxiv.org/abs/2209.10169 |
| رقم الانضمام: | edsarx.2209.10169 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.108.075115 |
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