{
  "abstract": "Spintronic terahertz (THz) emitters based on ferromagnet/heavy-metal bilayers provide an efficient route for generating broadband THz radiation through ultrafast spin-to-charge conversion. However, Ni/Pt bilayers usually exhibit relatively weak THz emission, limiting their use as efficient spintronic emitters. Here, we report an interface-assisted enhancement of THz emission in ZnO/Ni/Pt heterostructures. By placing ZnO underneath Ni while preserving the direct Ni/Pt contact, the THz amplitude is increased by up to approximately 2.8 times compared with the Ni/Pt reference. The enhanced emission reverses polarity with the magnetic field and follows the expected angular dependence of ultrafast spin-to-charge conversion. ZnO-, Ni-, and Pt-thickness-dependent measurements show that the emission remains governed by the Ni/Pt conversion process but is strongly affected by the ZnO/Ni bottom interface. Control samples with Al2O3, Cu, and Fe further exclude a simple underlayer, optical, or growth-quality origin. The enhancement is attributed to a short-range ZnO/Ni interface effect, possibly involving oxygen-related defects, interfacial electric fields, and modification of the Ni interfacial state. This work provides a semiconductor/ferromagnet interface-engineering strategy for activating weak Ni/Pt spintronic THz emitters.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.36889",
  "author_total": 12,
  "authors": [
    {
      "name": "Jia Xu"
    },
    {
      "name": "Shaohua Zhang"
    },
    {
      "name": "Xianguo Jiang"
    },
    {
      "name": "Lei Hao"
    },
    {
      "name": "Yaxuan Jin"
    },
    {
      "name": "Ning Yang"
    },
    {
      "name": "Yao Wang"
    },
    {
      "name": "Tong Fu"
    },
    {
      "name": "Hao Meng"
    },
    {
      "name": "Chao Lu"
    },
    {
      "name": "Wendeng Huang"
    },
    {
      "name": "Chao Zhou"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/573v38c9qpqpd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.36889",
  "fulltext_url": null,
  "id": "573v38c9qpqpd",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.36889",
  "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",
      "3107|Magnetic properties of thin films"
    ]
  ],
  "openalex": "W7224121619",
  "pdf_url": "https://arxiv.org/pdf/2610.36889",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/573v38c9qpqpd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2610.36889",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.36889"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "ZnO/Ni interface-activated enhancement of spintronic terahertz emission from Ni/Pt bilayers",
  "title_text": "ZnO/Ni interface-activated enhancement of spintronic terahertz emission from Ni/Pt bilayers",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/573v38c9qpqpd",
  "venue": "arXiv",
  "versions": []
}