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Condensed Matter > Strongly Correlated Electrons

arXiv:2305.00376 (cond-mat)
[Submitted on 30 Apr 2023]

Title:Itinerant to relocalized transition of f electrons in the Kondo insulator CeRu4Sn6

Authors:Fan-Ying Wu, Qi-Yi Wu, Chen Zhang, Yang Luo, Xiangqi Liu, Yuan-Feng Xu, Dong-Hui Lu, Makoto Hashimoto, Hao Liu, Yin-Zou Zhao, Jiao-Jiao Song, Ya-Hua Yuan, Hai-Yun Liu, Jun He, Yu-Xia Duan, Yan-Feng Guo, Jian-Qiao Meng
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Abstract:The three-dimensional electronic structure and the nature of Ce 4f electrons of the Kondo insulator CeRu4Sn6 are investigated by angle-resolved photoemission spectroscopy, utilizing tunable photon energies. Our results reveal (i) the three-dimensional k-space nature of the Fermi surface, (ii) the localized-to-itinerant transition of f electrons occurs at a much high temperature than the hybridization gap opening temperature, and (iii) the "relocalization" of itinerant f electrons below 25 K, which could be the precursor to the establishment of magnetic order.
Comments: 6 pages, 4 figures
Subjects: Strongly Correlated Electrons (cond-mat.str-el)
Cite as: arXiv:2305.00376 [cond-mat.str-el]
  (or arXiv:2305.00376v1 [cond-mat.str-el] for this version)
  https://doi.org/10.48550/arXiv.2305.00376
Journal reference: Frontiers of Physics 18(5), 53304(2023)
Related DOI: https://doi.org/10.1007/s11467-023-1298-y

Submission history

From: Jian-Qiao Meng [view email]
[v1] Sun, 30 Apr 2023 03:26:39 UTC (5,749 KB)
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