{"paper":{"title":"Electron-hole compensation effect between topologically trivial electrons and nontrivial holes in NbAs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.quant-gas"],"primary_cat":"cond-mat.str-el","authors_text":"E. D. Bauer, F. Ronning, Hongchul Choi, J. D. Thompson, Jianxin Zhu, M. Neupane, M. Wartenbe, N. J. Ghimire, R. D. McDonald, Yongkang Luo","submitted_at":"2015-06-04T23:42:40Z","abstract_excerpt":"Via angular Shubnikov-de Hass (SdH) quantum oscillations measurements, we determine the Fermi surface topology of NbAs, a Weyl semimetal candidate. The SdH oscillations consist of two frequencies, corresponding to two Fermi surface extrema: 20.8 T ($\\alpha$-pocket) and 15.6 T ($\\beta$-pocket). The analysis, including a Landau fan plot, shows that the $\\beta$-pocket has a Berry phase of $\\pi$ and a small effective mass $\\sim$0.033 $m_0$, indicative of a nontrivial topology in momentum space; whereas the $\\alpha$-pocket has a trivial Berry phase of 0 and a heavier effective mass $\\sim$0.066 $m_0"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.01751","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}