{
  "abstract": "New insights into the paramagnetic range of PrB$_6$ below 50 K are revealed through specific-heat, thermal-expansion and magnetic measurements. The latent heats of the two successive magnetic transitions, together with an improved description of the lattice contribution, enable a detailed determination of the thermal variation of the magnetic entropy. Immediately above the first-order magnetic ordering temperature ($T_N = 6.7$ K), the magnetic entropy per Pr$^{3+}$ is close to that of a doublet, instead of the triplet crystal-field ground state identified by inelastic neutron scattering. Temperatures in excess of 30 K are required to reach the entropy of the threefold-degenerate ground state. This is reminiscent of the CeB$_6$ case and, similarly, strongly suggests a dynamical splitting of the crystal-field ground state within the boron cage. Further evidence of this splitting is provided by the analysis of the low-temperature paramagnetic susceptibility, which resembles that of a non-magnetic ground state. In addition, a large thermal-expansion anomaly is observed below 20 K, consistent with the expected centrifugal Jahn-Teller effect.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.40176",
  "author_total": 3,
  "authors": [
    {
      "name": "Mehdi Amara"
    },
    {
      "name": "Christine Opagiste"
    },
    {
      "name": "Natalya Yu. Shitsevalova"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7d16p061ar4z9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.40176",
  "fulltext_url": null,
  "id": "7d16p061ar4z9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.40176",
  "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/2610.40176",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7d16p061ar4z9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:28Z",
      "native_id": "2610.40176",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.40176"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Cage-related crystal-field effects in the paramagnetic range of PrB$_6$",
  "title_text": "Cage-related crystal-field effects in the paramagnetic range of PrB_6",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:47Z",
  "url": "https://research.draconitic.com/paper/7d16p061ar4z9",
  "venue": "arXiv",
  "versions": []
}