{
  "abstract": "Two ultra-narrow absorption peaks around 1.5 eV, which are widely believed to originate from a transition from a spin-orbital entangled triplet to a singlet state, in the two-dimensional van der Waals crystal NiPS$_3$, have attracted considerable attention because of their pronounced spin-dependent character. An interesting question is whether ultrahigh magnetic fields modify an interaction-driven hybridization between those two peaks. In this work we perform systematic magneto-optical measurements of NiPS$_3$ in pulsed magnetic fields of up to 178 T and observe a pronounced mutual repulsion between the two sharp exciton peaks accompanied by a redistribution of oscillator strength, while the band edge shows no detectable field-induced shift within our experimental resolution. We construct a minimal two-level interaction model and compare it semi-quantitatively with the experimental data. Our results reveal a magnetic-field-tunable exciton-exciton coupling as the dominant high-field response of NiPS$_3$, and clarify this material as a new experimental platform for exploring strongly correlated exciton physics in magnetic van der Waals insulators.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. Lett. 137, 076903, 2026",
  "arxiv": "2608.29701",
  "author_total": 7,
  "authors": [
    {
      "name": "Kaiyang Huang"
    },
    {
      "name": "Jaena Park"
    },
    {
      "name": "Zhuo Yang"
    },
    {
      "name": "Je-Geun Park"
    },
    {
      "name": "Atsuhiko Miyata"
    },
    {
      "name": "Yoshimitsu Kohama"
    },
    {
      "name": "Yasuhiro H. Matsuda"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2kntr6m54g14d.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.29701",
  "fulltext_url": null,
  "id": "2kntr6m54g14d",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.29701",
  "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.str-el"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2608.29701",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2kntr6m54g14d.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2608.29701",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.29701"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Magnetic Field-Tunable Repulsive Exciton-Exciton Interaction in the van der Waals Antiferromagnet NiPS$_3$",
  "title_text": "Magnetic Field-Tunable Repulsive Exciton-Exciton Interaction in the van der Waals Antiferromagnet NiPS_3",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/2kntr6m54g14d",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/jl7j-g835",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}