{
  "abstract": "The triangular-lattice antiferromagnet serves as a benchmark platform for realizing exotic quantum phases, in which magnetic anisotropy plays an essential role. In this work, we report modified magnetic anisotropy and phase diagrams in the nearly isotropic $S=1$ triangular-lattice antiferromagnet $\\mathrm{Rb_2Ni(SeO_3)_2}$, compared with those of its isostructural analog $\\mathrm{K_2Ni(SeO_3)_2}$. The magnetic susceptibility of $\\mathrm{Rb_2Ni(SeO_3)_2}$ exhibits an easy-axis anisotropy with $g_c > g_{ab}$, opposite to the easy-plane anisotropy observed in $\\mathrm{K_2Ni(SeO_3)_2}$. The single Néel transition observed at zero field splits into two transitions at around 10~T, and a magnetization plateau is observed between 21~T and 37~T for both out-of-plane ($H\\parallel c$) and in-plane ($H\\parallel ab$) field directions in $\\mathrm{Rb_2Ni(SeO_3)_2}$. We construct magnetic phase diagrams that are distinct between $\\mathrm{Rb_2Ni(SeO_3)_2}$ and $\\mathrm{K_2Ni(SeO_3)_2}$. These findings highlight the sensitivity of field-induced magnetic phase behavior to anisotropy in nearly isotropic triangular-lattice antiferromagnets.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.21154",
  "author_total": 16,
  "authors": [
    {
      "name": "Xuejuan Gui"
    },
    {
      "name": "Xu-Guang Zhou"
    },
    {
      "name": "Chen Zhang"
    },
    {
      "name": "Zhongcen Sun"
    },
    {
      "name": "Yuan Sun"
    },
    {
      "name": "Chenglin Shang"
    },
    {
      "name": "Akira Matsuo"
    },
    {
      "name": "Yasuhiro H. Matsuda"
    },
    {
      "name": "Koichi Kindo"
    },
    {
      "name": "Henrik M. Rønnow"
    },
    {
      "name": "Weiqiang Yu"
    },
    {
      "name": "Rong Yu"
    },
    {
      "name": "Peng Cheng"
    },
    {
      "name": "Juanjuan Liu"
    },
    {
      "name": "Jieming Sheng"
    },
    {
      "name": "Jinchen Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1z1vw16k9yrxj.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.21154",
  "fulltext_url": null,
  "id": "1z1vw16k9yrxj",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.21154",
  "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.str-el"
    ],
    [
      "openalex",
      "3104|Advanced Condensed Matter Physics"
    ]
  ],
  "openalex": "W7222573532",
  "pdf_url": "https://arxiv.org/pdf/2610.21154",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1z1vw16k9yrxj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:50Z",
      "native_id": "2610.21154",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.21154"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Modified anisotropy and distinct phase diagrams in the nearly isotropic $S=1$ triangular-lattice antiferromagnet $\\mathrm{Rb_2Ni(SeO_3)_2}$",
  "title_text": "Modified anisotropy and distinct phase diagrams in the nearly isotropic S=1 triangular-lattice antiferromagnet Rb_2Ni(SeO_3)_2",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:50Z",
  "url": "https://research.draconitic.com/paper/1z1vw16k9yrxj",
  "venue": "arXiv",
  "versions": []
}