{
  "abstract": "The microscopic origin of the low-field $1/9$ magnetization plateau in spin-$1/2$ kagome antiferromagnets remains unresolved. Here, we show that chemical pressure reshapes the hierarchy of fractional magnetization plateaus in the titanium-based kagome family $\\mathrm{Cs_8AB_3Ti_{12}F_{48}}$ ($A=\\mathrm{Rb},\\mathrm{Li}$; $B=\\mathrm{K},\\mathrm{Na}$). High-field magnetization measurements up to 60 T reveal a robust $1/9$ plateau-like phase in the expanded $\\mathrm{Cs_8RbK_3Ti_{12}F_{48}}$ and $\\mathrm{Cs_8LiK_3Ti_{12}F_{48}}$ compounds, despite the absence of the conventionally more robust $1/3$ plateau. In contrast, compressed $\\mathrm{Cs_8LiNa_3Ti_{12}F_{48}}$ exhibits neither the $1/9$ plateau-like phase nor a quantum-disordered ground state. Specific-heat measurements and first-principles calculations show that lattice expansion preserves a frustrated, fully connected kagome exchange network and gapless quantum-disordered ground states, whereas compression reorganizes the exchange network into weakly coupled quasi-one-dimensional subsystems and induces successive magnetic transitions. These results demonstrate that the $1/9$ and $1/3$ plateaus need not share a common microscopic origin and suggest that the $1/9$ plateau may represent a more universal feature of frustrated spin-$1/2$ kagome magnetism.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.19572",
  "author_total": 20,
  "authors": [
    {
      "name": "Prena Chaudhary"
    },
    {
      "name": "Asiri Thennakoon"
    },
    {
      "name": "Tommy Park"
    },
    {
      "name": "Hanru Wang"
    },
    {
      "name": "Leshan Zhao"
    },
    {
      "name": "Laurel Winter"
    },
    {
      "name": "Neil Herrison"
    },
    {
      "name": "Christina Hoffmann"
    },
    {
      "name": "Junghong H. He"
    },
    {
      "name": "Harald O. Jeschke"
    },
    {
      "name": "Hiroyuki Nojiri"
    },
    {
      "name": "Akira Matsuo"
    },
    {
      "name": "Koichi Kindo"
    },
    {
      "name": "Miwako Takahashi"
    },
    {
      "name": "Yukio Noda"
    },
    {
      "name": "Taku J. Sato"
    },
    {
      "name": "Shiyan Li"
    },
    {
      "name": "Hiroaki Ueda"
    },
    {
      "name": "Gia-Wei Chern"
    },
    {
      "name": "Seung-Hun Lee"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1nhphq59r9y36.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.19572",
  "fulltext_url": null,
  "id": "1nhphq59r9y36",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.19572",
  "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"
    ],
    [
      "arxiv",
      "cond-mat.other"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.19572",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1nhphq59r9y36.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:19Z",
      "native_id": "2609.19572",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.19572"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Universality of the $1/9$ Magnetization Plateau and Quantum-Disordered States in the Kagome Family $\\mathrm{Cs_8AB_3Ti_{12}F_{48}}$ ($A=\\mathrm{Rb},\\mathrm{Li}$; $B=\\mathrm{K},\\mathrm{Na}$)",
  "title_text": "Universality of the 1/9 Magnetization Plateau and Quantum-Disordered States in the Kagome Family Cs_8AB_3Ti_12F_48 (A=Rb,Li; B=K,Na)",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:19Z",
  "url": "https://research.draconitic.com/paper/1nhphq59r9y36",
  "venue": "arXiv",
  "versions": []
}