Electronic structure and 4f-electron character in Ce2PdIn8 studied by angle-resolved photoemission spectroscopy

Q. Yao, D. Kaczorowski, P. Swatek, D. Gnida, C. H.P. Wen, X. H. Niu, R. Peng, H. C. Xu, P. Dudin, Stefan Kirchner, Q. Y. Chen, D. W. Shen, D. L. Feng

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14 引文 斯高帕斯(Scopus)

摘要

The localized-to-itinerant transition of f electrons lies at the heart of heavy-fermion physics, but has only been directly observed in single-layer Ce-based materials. Here, we report a comprehensive study on the electronic structure and nature of the Ce 4f electrons in the heavy-fermion superconductor Ce2PdIn8, a typical n=2 CenMmIn3n+2m compound, using high-resolution and 4d-4f resonant photoemission spectroscopies. The electronic structure of this material has been studied over a wide temperature range, and hybridization between f and conduction electrons can be clearly observed to form a Kondo resonance near the Fermi level at low temperatures. The characteristic temperature of the localized-to-itinerant transition is around 120 K, which is much higher than its coherence temperature Tcoh∼30K.

原文English
文章編號081107
頁(從 - 到)1-5
頁數5
期刊Physical Review B
99
發行號8
DOIs
出版狀態Published - 15 2月 2019

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