{"paper":{"title":"Magnetically tunable symmetry-enforced nodal lines producing huge anomalous Hall conductivity in altermagnetic $\\alpha$-MnTe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Amar Fakhredine, Ashutosh S. Wadge, Asiyeh Shokri, Carmine Autieri, Carmine Ortix, Dawid Wutke, Gunther Springholz, Jakub Schusser, J\\'an Min\\'ar, Jeroen van den Brink, Juraj Krempask\\'y, Mathews Benny, Natalia Olszowska, Rafa{\\l} Kurleto, Rapha\\\"el Salazar, Sahar Izadi Vishkayi, Sarath Sasi, Xujia Gong","submitted_at":"2026-08-03T15:55:42Z","abstract_excerpt":"Altermagnetic $\\alpha$-MnTe exhibits huge anomalous Hall conductivity (AHC) up to room-temperature together with weak ferromagnetism arising from spin and orbital polarizations. We clarify the origin of the large value of the AHC by identifying two sets of distinct symmetry-enforced nodal lines in the valence bands with Mn character, located at $k_z=0$ and $k_z=\\frac{\\pi}{c}$, protected by mirror symmetry $M_z$ and glide symmetry $G_z = \\{M_z\\,|\\,0,0,\\tfrac{c}{2}\\}$, respectively. Both nodal lines are energy-dependent with an approximate C$_6$ symmetry, which is reduced to an exact C$_2$ symme"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.02416","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.02416/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}