{
  "abstract": "In this work, we present a first-principles approach to investigate phonon-assisted shift current in extended systems. Our method combines the special displacement technique with real-time simulations based on the dynamical Berry phase. Merging these two frameworks enables direct access to non-linear optical responses at finite temperatures, while naturally incorporating phonon scattering and phonon-assisted electronic transitions into the time-dependent dynamics. This allows us to capture temperature-dependent features and lattice fluctuations that are essential for a realistic description of non-linear photocurrent generation. As a representative example, we apply our approach to the shift-current response of a monolayer of hexagonal AlN (h-AlN). This system provides an ideal testing ground because it features an indirect band gap and lacks inversion symmetry. Moreover, h-AlN layers of different thicknesses have been fabricated and characterized in a variety of experimental settings, opening the concrete possibility of testing our predictions. Our results demonstrate the relevance of phonon-mediated processes and the importance of temperature in determining the magnitude and spectral features of the shift current in layered materials.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.35662",
  "author_total": 4,
  "authors": [
    {
      "name": "Yuncheng Mao"
    },
    {
      "name": "Pierre Lechifflart"
    },
    {
      "name": "Elena Cannuccia"
    },
    {
      "name": "Claudio Attaccalite"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/746p47vyy39bx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.35662",
  "fulltext_url": null,
  "id": "746p47vyy39bx",
  "issns": [],
  "landing_url": "https://hal.science/hal-05840290v1",
  "language": "en",
  "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.mes-hall"
    ],
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      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "hal",
      "0.phys"
    ],
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      "hal",
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      "openalex",
      "3107|Topological Materials and Phenomena"
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  "openalex": "W7223811771",
  "pdf_url": "https://arxiv.org/pdf/2610.35662",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/746p47vyy39bx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "hal-05840290",
      "source": "hal",
      "url": "https://hal.science/hal-05840290v1"
    },
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.35662",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.35662"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Phonon-assisted shift-current from first-principles: application to AlN monolayer",
  "title_text": "Phonon-assisted shift-current from first-principles: application to AlN monolayer",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/746p47vyy39bx",
  "venue": "HAL",
  "versions": []
}