{
  "abstract": "Photonic time crystals host momentum gaps in which waves grow exponentially but cannot propagate. We establish their magnonic counterpart in a thin film with periodically switched anisotropy, deriving its Floquet band structure and confirming it micromagnetically. Gaps require a precession-ellipticity contrast. The waveform controls high-order gaps: a single 1~GHz switching drive amplifies a comb of spin-wave bands, from 2.5 to 4.5~GHz, above Gilbert losses even with smoothed edges, unlike sinusoidal modulation. With the Dzyaloshinskii--Moriya interaction, amplified packets propagate inside the gap while growing.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.32766",
  "author_total": 2,
  "authors": [
    {
      "name": "Paweł Gruszecki"
    },
    {
      "name": "Victor Pacheco-Peña"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f5b5p43qkwkv9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.32766",
  "fulltext_url": null,
  "id": "f5b5p43qkwkv9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.32766",
  "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.mes-hall"
    ],
    [
      "openalex",
      "3107|Magnetic properties of thin films"
    ]
  ],
  "openalex": "W7223697189",
  "pdf_url": "https://arxiv.org/pdf/2610.32766",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/f5b5p43qkwkv9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:15Z",
      "native_id": "2610.32766",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.32766"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Floquet Engineering of Momentum Gaps in Magnonic Time Crystals: Slow-Drive Amplification and In-Gap Propagation",
  "title_text": "Floquet Engineering of Momentum Gaps in Magnonic Time Crystals: Slow-Drive Amplification and In-Gap Propagation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:15Z",
  "url": "https://research.draconitic.com/paper/f5b5p43qkwkv9",
  "venue": "arXiv",
  "versions": []
}