{
  "abstract": "We report single crystal growth and physical property characterization of CaMn_{2+x}Al_{10-x} crystals grown using a fractionation approach. Three consecutive batches were obtained from the same initial melt composition, systematically sampling neighboring, narrow regions of the ternary Ca-Mn-Al phase diagram. Single-crystal X-ray diffraction measurements reveal Mn/Al site mixing, with the excess Mn concentration, x, decreasing systematically with decreasing decanting temperature. A low-temperature upturn in magnetization and a maximum in electrical resistivity both become progressively weaker with decreasing excess Mn content, suggesting that the previously reported magnetic properties attributed to stoichiometric CaMn_{2}Al_{10} instead arise from an inhomogeneous distribution of excess Mn atoms. More broadly, the results presented in this work demonstrate how fractionation can help distinguish intrinsic magnetic behavior from disorder-induced effects associated with an inhomogeneous distribution of magnetic ions in materials with a finite width of formation, particularly when itinerant magnetism is under consideration.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.27391",
  "author_total": 4,
  "authors": [
    {
      "name": "Szymon Królak"
    },
    {
      "name": "Sushma Kumari"
    },
    {
      "name": "Sergey L. Bud'ko"
    },
    {
      "name": "Paul C. Canfield"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3adq0bbn4c08r.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.27391",
  "fulltext_url": null,
  "id": "3adq0bbn4c08r",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.27391",
  "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.mtrl-sci"
    ],
    [
      "openalex",
      "2504|Magnetic and transport properties of perovskites and related materials"
    ]
  ],
  "openalex": "W7214232463",
  "pdf_url": "https://arxiv.org/pdf/2609.27391",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3adq0bbn4c08r.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.27391",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.27391"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Fractionation as a Tool to Control Mn/Al Site Mixing and Magnetism in CaMn_{2+x}Al_{10-x}",
  "title_text": "Fractionation as a Tool to Control Mn/Al Site Mixing and Magnetism in CaMn_{2+x}Al_{10-x}",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/3adq0bbn4c08r",
  "venue": "arXiv",
  "versions": []
}