{
  "abstract": "The magnetic ground states of rare-earth frustrated magnets can be governed by competing energy scales arising from crystal-field anisotropy, exchange interactions, and long-range dipolar interactions. Here we investigate this interplay in the triangular-lattice antiferromagnet NaBaEr(BO$_3$)$_2$ by combining magnetization, specific heat, and neutron scattering measurements. Neutron powder diffraction resolves rotations of the ErO$_6$ octahedra and supports the lower-symmetry $R\\bar{3}$ structure over the previously proposed $R\\bar{3}m$ model. Magnetization measurements and inelastic neutron scattering establish an effective spin-1/2 description of its low-temperature magnetism with pronounced easy-axis anisotropy, arising from a well-isolated Kramers ground-state doublet separated from the first excited crystal-electric-field level by approximately 4 meV. Below $T_{\\rm N}=0.1$ K, single-crystal neutron diffraction reveals A-type antiferromagnetic order with the ordered moment predominantly oriented within the $ab$ plane, despite the pronounced paramagnetic easy-axis anisotropy. The estimated dipolar interaction scale is comparable to $T_{\\rm N}$, and classical dipolar-energy calculations for the observed stacking pattern favor an in-plane moment orientation. These results reveal contrasting crystal-field and dipolar anisotropies in determining the magnetic ground state of NaBaEr(BO$_3$)$_2$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.28041",
  "author_total": 13,
  "authors": [
    {
      "name": "Cheng Su"
    },
    {
      "name": "Yonglin Wang"
    },
    {
      "name": "Zihang Gao"
    },
    {
      "name": "Xinyang Liu"
    },
    {
      "name": "Jianglong Zhang"
    },
    {
      "name": "Chin-Wei Wang"
    },
    {
      "name": "Michael Marek Koza"
    },
    {
      "name": "Juping Xu"
    },
    {
      "name": "Wen Yin"
    },
    {
      "name": "Hao Deng"
    },
    {
      "name": "Wei Li"
    },
    {
      "name": "Junsen Xiang"
    },
    {
      "name": "Wentao Jin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4ee47a8fdrajg.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.28041",
  "fulltext_url": null,
  "id": "4ee47a8fdrajg",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.28041",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "3104|Advanced Condensed Matter Physics"
    ]
  ],
  "openalex": "W7223143261",
  "pdf_url": "https://arxiv.org/pdf/2610.28041",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-20",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4ee47a8fdrajg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:04Z",
      "native_id": "2610.28041",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.28041"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Contrasting Crystal-Field and Dipolar Anisotropies in the Triangular Antiferromagnet NaBaEr(BO$_3$)$_2$",
  "title_text": "Contrasting Crystal-Field and Dipolar Anisotropies in the Triangular Antiferromagnet NaBaEr(BO_3)_2",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:04Z",
  "url": "https://research.draconitic.com/paper/4ee47a8fdrajg",
  "venue": "arXiv",
  "versions": []
}