{
  "abstract": "High-harmonic spectroscopy is exquisitely sensitive to the electronic structure and dynamics of quantum materials, yet quantum interference between spin-orbit-split bands has remained experimentally elusive. We observe this interference between Rashba-split bands in bismuth tellurium iodide (BiTeI) driven by strong mid-infrared laser fields. The sixth harmonic exhibits intensity-scaling kinks and an M-shaped ellipticity dependence. Theoretical simulations attribute these features to spin-orbit-mediated multichannel quantum interference, which arises from Landau-Zener-Stückelberg-type intersubband tunneling between Rashba-split bands. The suppression of harmonic yield under linearly polarized pulses arises from destructive interference among electron-hole recombination pathways, whereas increasing ellipticity modifies their relative phase and induces a distinct spectral redshift. These results establish high-harmonic spectroscopy as a probe of spin-textured band dynamics and ultrafast spin-polarized currents.",
  "abstract_shown": true,
  "affiliations": [
    "Institute of Ultrafast Optical Physics, Department of Applied Physics & MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, China.",
    "State Key Laboratory of Ultra-intense Laser Science and Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.",
    "Institute of Physics, Chinese Academy of Sciences, Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China.",
    "Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China."
  ],
  "article_type": "Research Article",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
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        0,
        1
      ],
      "name": "Hongbin Zhan",
      "orcid": "0009-0009-3995-3240"
    },
    {
      "affs": [
        0,
        2
      ],
      "name": "Chen Qian",
      "orcid": "0000-0002-0291-3335"
    },
    {
      "affs": [
        0
      ],
      "name": "Tong Wu"
    },
    {
      "affs": [
        0
      ],
      "name": "Zekun Wang",
      "orcid": "0000-0003-3792-535X"
    },
    {
      "affs": [
        0
      ],
      "name": "Kun Zhao"
    },
    {
      "affs": [
        1,
        3
      ],
      "name": "Candong Liu",
      "orcid": "0000-0001-9319-3080"
    },
    {
      "affs": [
        1,
        3
      ],
      "name": "Ya Bai"
    },
    {
      "affs": [
        0
      ],
      "name": "Ruifeng Lu",
      "orcid": "0000-0002-1752-2070"
    }
  ],
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  "cited_by": 0,
  "doi": "10.1126/sciadv.aeh3388",
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  "language": "eng",
  "licence": "CC-BY-NC",
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      "heading",
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      "heading",
      "Physical and Materials Sciences"
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      "heading",
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      "heading",
      "Research Article"
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  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13721981/pdf/?tool=EBI",
  "pmcid": "PMC13721981",
  "pmid": "42962027",
  "published": "2026-10-30",
  "publisher": "American Association for the Advancement of Science (AAAS)",
  "ris": "https://research.draconitic.com/paper/4an62xpvaxmqz.ris",
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  "subjects": [
    {
      "field": "physics",
      "origin": "heading:Optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Rashba-induced intersubband interference in high-harmonic generation",
  "title_text": "Rashba-induced intersubband interference in high-harmonic generation",
  "type": "peer-reviewed",
  "updated_at": "2026-11-03T12:22:34Z",
  "url": "https://research.draconitic.com/paper/4an62xpvaxmqz",
  "venue": "Science Advances",
  "versions": []
}