{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["15(1)"],"submitter":["Yang XP"],"pubmed_abstract":["The interplay of topology, magnetism, and correlations gives rise to intriguing phases of matter. In this study, through state-of-the-art angle-resolved photoemission spectroscopy, density functional theory, and dynamical mean-field theory calculations, we visualize a fourfold degenerate Dirac nodal line at the boundary of the bulk Brillouin zone in the antiferromagnet YMn<sub>2</sub>Ge<sub>2</sub>. We further demonstrate that this gapless, antiferromagnetic Dirac nodal line is enforced by the combination of magnetism, space-time inversion symmetry, and nonsymmorphic lattice symmetry. The corresponding drumhead surface states traverse the whole surface Brillouin zone. YMn<sub>2</sub>Ge<sub>2</sub> thus serves as a platform to exhibit the interplay of multiple degenerate nodal physics and a"],"journal":["Nature communications"],"pagination":["7052"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11327286"],"repository":["biostudies-literature"],"pubmed_title":["A topological Hund nodal line antiferromagnet."],"pmcid":["PMC11327286"],"pubmed_authors":["Hossain MS","Guan S","Yin JX","Shi T","Zheng P","Belopolski I","Cochran TA","Jiang YX","Bansil A","Zhou X","Xu G","Litskevich M","Yin Z","Tian Z","Hasan MZ","Lin CM","Li Z","Chang TR","Jia S","Chi S","Yang XP","Cheng ZJ","Yao YT","Zhou H"],"additional_accession":[]},"is_claimable":false,"name":"A topological Hund nodal line antiferromagnet.","description":"The interplay of topology, magnetism, and correlations gives rise to intriguing phases of matter. In this study, through state-of-the-art angle-resolved photoemission spectroscopy, density functional theory, and dynamical mean-field theory calculations, we visualize a fourfold degenerate Dirac nodal line at the boundary of the bulk Brillouin zone in the antiferromagnet YMn<sub>2</sub>Ge<sub>2</sub>. We further demonstrate that this gapless, antiferromagnetic Dirac nodal line is enforced by the combination of magnetism, space-time inversion symmetry, and nonsymmorphic lattice symmetry. The corresponding drumhead surface states traverse the whole surface Brillouin zone. YMn<sub>2</sub>Ge<sub>2</sub> thus serves as a platform to exhibit the interplay of multiple degenerate nodal physics and a","dates":{"release":"2024-01-01T00:00:00Z","publication":"2024 Aug","modification":"2025-04-26T21:21:31.102Z","creation":"2025-04-06T16:44:55.072Z"},"accession":"S-EPMC11327286","cross_references":{"pubmed":["39147740"],"doi":["10.1038/s41467-024-51255-3"]}}