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- W4328050825 abstract "Abstract We use high-resolution angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic and magnetic properties of La 2 Ni 7 , an itinerant magnetic system with a series of three magnetic transition temperatures upon cooling, which end in a weak antiferromagnetic ground state. Our APRES data reveal several electron and hole pockets that have hexagonal symmetry near the Γ point. We observe significant reconstruction of the band structure upon successive magnetic transitions at T 1 ∼ 61 K, T 2 ∼ 57 K and T 3 ∼ 42 K. Several features observed in ARPES data were reasonably well reproduced by DFT calculations, while others were not. In particular, the flat band near E F predicted by DFT in antiferromagnet (AFM) state, was seemingly absent in ARPES data. Our results detail the effects of magnetic ordering on the electronic structure in a Ni-based weak AFM and highlight challenges of current computational methods." @default.
- W4328050825 created "2023-03-22" @default.
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- W4328050825 date "2023-04-03" @default.
- W4328050825 modified "2023-09-25" @default.
- W4328050825 title "Electronic signatures of successive itinerant, antiferromagnetic transitions in hexagonal La<sub>2</sub>Ni<sub>7</sub>" @default.
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- W4328050825 doi "https://doi.org/10.1088/1361-648x/acc629" @default.
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