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Nesting-driven antiferromagnetic order in Kondo lattice CePd5Al2

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arxiv 2304.04426 v1 pith:HSJMQ2EZ submitted 2023-04-10 cond-mat.str-el cond-mat.supr-con

Chen Zhang , Ya-Hua Yuan , Jiao-Jiao Song , Jan Rusz , Yin-Zou Zhao , Qi-Yi Wu , Yu-Xia Duan , Yasmine Sassa
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Oscar Tjernberg Martin Mansson Magnus H. Bemtsen P. H. Tobash Eric D. Bauer Peter M. Oppeneer Tomasz Durakiewicz Jian-Qiao Meng
This is my paper · ORCID
classification cond-mat.str-elcond-mat.supr-con
keywords fermiantiferromagneticcepd5al2surfacebandkondolatticeorder
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We investigated the electronic structure of the antiferromagnetic Kondo lattice CePd5Al2 using high-resolution angle-resolved photoemission spectroscopy. The experimentally determined band structure of the conduction electrons is predominated by the Pd 4d character. It contains multiple hole and electron Fermi pockets, in good agreement with density functional theory calculations. The Fermi surface is folded over Q0 = (0, 0, 1), manifested by Fermi surface reconstruction and band folding. Our results suggest that Fermi surface nesting drives the formation of antiferromagnetic order in CePd5Al2.

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