{
  "abstract": "The extreme magnetoresistance of compensated semimetals is governed by both the Fermi-surface geometry and carrier relaxation, but these contributions are difficult to disentangle in finite-size structures. Here, we combine longitudinal and Hall magnetotransport measurements with temperature- and angle-dependent Shubnikov--de Haas oscillations in single-crystalline Sb flakes grown by chemical vapor deposition (CVD), with thicknesses ranging from 110 to 783 nm. As thickness increases, the non-saturating MR at 2 K and 14 T rises nearly 30-fold, reaching $7.13\\times10^{5}\\%$, while the primary frequency $F_α$ remains approximately 99 T without any systematic shift. A joint three-channel analysis of $ρ_{xx}(B)$ and $ρ_{xy}(B)$ reveals that this evolution is driven by an increase in the mobility of a nearly compensated electron--hole pair, rather than by a reconstruction of the primary pockets. Angle-dependent measurements confirm the existence of a closed three-dimensional $α$ pocket, and a reproducible high-frequency sector (335-377 T) is consistent with the electron $β$ orbit of the $L$-point pockets in bulk Sb. Together, the transport and quantum-oscillation results show that thickness tunes extreme MR through dimension-dependent scattering while preserving bulk-like fermiology.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.06561",
  "author_total": 4,
  "authors": [
    {
      "name": "Mikhail Gaponov"
    },
    {
      "name": "Jicheng Wang"
    },
    {
      "name": "Liang Zha"
    },
    {
      "name": "Rui Wu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9fap9atmdxsdh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.06561",
  "fulltext_url": null,
  "id": "9fap9atmdxsdh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.06561",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "openalex",
      "3107|Topological Materials and Phenomena"
    ]
  ],
  "openalex": "W7211990174",
  "pdf_url": "https://arxiv.org/pdf/2609.06561",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9fap9atmdxsdh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.06561",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.06561"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Three-Dimensional Fermiology and Thickness-Tuned Magnetotransport in Single-Crystalline Antimony Flakes",
  "title_text": "Three-Dimensional Fermiology and Thickness-Tuned Magnetotransport in Single-Crystalline Antimony Flakes",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:48Z",
  "url": "https://research.draconitic.com/paper/9fap9atmdxsdh",
  "venue": "arXiv",
  "versions": []
}