Electronic signatures of successive itinerant, magnetic transitions in hexagonal La2Ni7
| Autor: | Lee, Kyungchan, Jo, Na Hyun, Wang, Lin-Lin, Ribeiro, R. A., Kushnirenko, Yevhen, Schrunk, Ben, Canfield, Paul C., Kaminski, Adam |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1361-648X/acc629 |
| Popis: | We use high-resolution angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic and magnetic properties of La2Ni7, an itinerant magnetic system with a series of three magnetic transition temperatures upon cooling, which end in a weak itinerant antiferromagnetic (wAFM) ground state. Our APRES data reveal several electron and hole pockets that have hexagonal symmetry near the $\Gamma$ point. We observe significant reconstruction of the band structure upon successive magnetic transitions at T1 = 61 K, T2 = 57 K and T3 = 42 K. The experimental data are in a reasonable agreement with DFT calculations, demonstrating their applicability to itinerant antiferromagnet systems. Our results detail the effects of magnetic ordering on the electronic structure in a Ni-based weak antiferromagnet. Comment: 17 pages, 4 figures |
| Databáze: | arXiv |
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