{
  "abstract": "Nanocrystal (NC)-derived ion-conducting solids combine compositionally tunable nanoscale building blocks with dense networks of particle–particle and electrode contacts, making it difficult to distinguish material-associated relaxation dynamics from assembly-dependent impedance. Here, colloidally synthesized Ag₄Zr₃S₈ NCs are consolidated into pellets and interrogated by pressure- and temperature-resolved electrochemical impedance spectroscopy using Ag + -blocking (Au) and Ag + non-blocking (Ag) contacts. An objective discontinuity criterion is used to identify a continuous high-frequency analysis window, which is evaluated by Bayesian Hilbert-transform diagnostics and distribution-of-relaxation-times (DRT) analysis. Across 0.43–8.67 MPa and 298–393 K, Au-contacted pellets exhibit a dominant sample-associated relaxation centered near tau ~ 10⁻⁶ s. The dominant mode remains within the microsecond relaxation-time regime across the investigated pressure and temperature ranges, while both its characteristic time and spectral weight vary non-monotonically with the applied perturbation. The same fast response persists after changing Au to Ag contacts and pellet preparation history, whereas slower DRT features are more configuration-sensitive. A frequency-matched dummy-cell control exhibits its principal relaxation approximately one decade later in time. These results demonstrate how orthogonal mechanical, thermal, electrode, and assembly perturbations can distinguish sample-associated relaxation dynamics from configuration-sensitive impedance in NC-derived chalcogenide solids.",
  "abstract_shown": true,
  "affiliations": [
    "Loyola University Chicago"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Yunhao Xu"
    },
    {
      "affs": [
        0
      ],
      "name": "Isabella Campbell"
    },
    {
      "affs": [
        0
      ],
      "name": "Oluwaseyi Saliu",
      "orcid": "0000-0002-0829-3835"
    },
    {
      "affs": [
        0
      ],
      "name": "Simran Choudhary"
    },
    {
      "affs": [
        0
      ],
      "name": "Progna Banerjee",
      "orcid": "0000-0003-3257-7317"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ad2b9z29x9v49.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv-2026-t7qrx/v2",
  "fulltext_url": null,
  "id": "ad2b9z29x9v49",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv-2026-t7qrx/v2",
  "language": null,
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2505|Solid-state spectroscopy and crystallography"
    ]
  ],
  "openalex": "W7220981632",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv-2026-t7qrx/v2",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-08",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/ad2b9z29x9v49.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "10.26434/chemrxiv-2026-t7qrx",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv-2026-t7qrx/v2"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Solid-state spectroscopy and crystallography",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Orthogonal Perturbations Resolve a Robust High-Frequency Relaxation in Nanocrystal-Derived Ag₄Zr₃S₈ Assemblies",
  "title_text": "Orthogonal Perturbations Resolve a Robust High-Frequency Relaxation in Nanocrystal-Derived Ag₄Zr₃S₈ Assemblies",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/ad2b9z29x9v49",
  "venue": "ChemRxiv",
  "versions": []
}