{
  "abstract": "Nanosized hafnia-zirconia (HfxZr1-xO2) in the form of thin films, multilayers, and nanoparticles is one of the most promising CMOS-compatible ferroelectric materials for advanced electronic memories and logic devices. Using the Landau-Ginzburg-Devonshire free energy functional with trilinear and biquadratic couplings of polar, nonpolar, and antipolar order parameters, we analyze the pyroelectric and electrocaloric properties in an ensemble of spherical core-shell HfxZr1-xO2 nanoparticles. To test the theoretical model, we experimentally measured the temperature dependence of the electric charge accumulated in pressed powders consisting of oxygen-deficient core-shell Hf0.5Zr0.5O2 nanoparticles with an average size of 7 nm. The observed temperature-dependent behavior of the accumulated charge and its derivative are in qualitative agreement with the calculated polarization and pyroelectric coefficient for the ensemble of densely packed spherical core-shell HfxZr1-xO2 nanoparticles; this suggests that the theoretical model captures the physical mechanisms responsible for the experimentally observed charge accumulation. The combined theoretical and experimental results provide a physical foundation for the future development of CMOS-compatible HfxZr1-xO2 nanoparticles for pyroelectric and electrocaloric applications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.22654",
  "author_total": 5,
  "authors": [
    {
      "name": "Anna N. Morozovska"
    },
    {
      "name": "Oleksandr S. Pylypchuk"
    },
    {
      "name": "Nicholas V. Morozovsky"
    },
    {
      "name": "Eugene A. Eliseev"
    },
    {
      "name": "Dean R. Evans"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/avk2ja9cgms6s.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.22654",
  "fulltext_url": null,
  "id": "avk2ja9cgms6s",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.22654",
  "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",
      "physics.app-ph"
    ],
    [
      "openalex",
      "2208|Ferroelectric and Negative Capacitance Devices"
    ]
  ],
  "openalex": "W7165659919",
  "pdf_url": "https://arxiv.org/pdf/2606.22654",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/avk2ja9cgms6s.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:26:45Z",
      "native_id": "2606.22654",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.22654"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.app-ph",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Pyroelectric and electrocaloric properties of core-shell HfxZr1-xO2 nanoparticles: theory and experiment",
  "title_text": "Pyroelectric and electrocaloric properties of core-shell HfxZr1-xO2 nanoparticles: theory and experiment",
  "type": "preprint",
  "updated_at": "2026-10-30T12:26:45Z",
  "url": "https://research.draconitic.com/paper/avk2ja9cgms6s",
  "venue": "arXiv",
  "versions": []
}