{
  "abstract": "In this work, we used temperature-dependent electron paramagnetic resonance (EPR) spectroscopy to reveal the effect of high-temperature annealing in N2 and air on paramagnetic and electronic properties of ZnO microparticles. EPR spectral simulations have shown that N2 annealing produces Zni, VO+, and shallow-donor centers, whereas Zni, VO+, and Hi-related centers are observed after annealing the ZnO microparticles in an air atmosphere. The resolved paramagnetic centers exhibit distinctly different behavior over 5-297 K. The shallow-donor and Hi signals are rapidly quenched below approximately 50 K, while the Zni contribution shows a nonmonotonic temperature dependence. In contrast, the VO+ signal persists up to room temperature and increases with temperature, consistent with charge redistribution among donor-related defects involving deep oxygen-vacancy states. The cavity Q-factor generally decreases with increasing temperature for both annealed samples, indicating atmosphere-dependent changes in the microwave losses. These results show that the annealing atmosphere controls the paramagnetic defect population, the temperature dependence of donor-related centers, and the associated electronic response of ZnO microparticles.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.33870",
  "author_total": 5,
  "authors": [
    {
      "name": "D. Savchenko"
    },
    {
      "name": "M. Holiatkina"
    },
    {
      "name": "A. Prokhorov"
    },
    {
      "name": "A. Vasin"
    },
    {
      "name": "E. Kalabukhova"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fef5yhy8ds7yj.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.33870",
  "fulltext_url": null,
  "id": "fef5yhy8ds7yj",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.33870",
  "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.mtrl-sci"
    ],
    [
      "openalex",
      "2505|ZnO doping and properties"
    ]
  ],
  "openalex": "W7223954729",
  "pdf_url": "https://arxiv.org/pdf/2610.33870",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-24",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fef5yhy8ds7yj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.33870",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.33870"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Annealing-atmosphere control of paramagnetic defects in ZnO microparticles",
  "title_text": "Annealing-atmosphere control of paramagnetic defects in ZnO microparticles",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/fef5yhy8ds7yj",
  "venue": "arXiv",
  "versions": []
}