{
  "abstract": "We demonstrate a novel magnetometer that utilizes the Langevin nonlinear magnetization of superparamagnetic nanoparticles as the sensing medium. The magnetic sensor exploits the even-order harmonics of the magnetization response, particularly the second harmonic, which is proportional to the local magnetic field component. By remotely detecting the magnetization response, the magnetometer enables non-invasive, localized, and distributed magnetic field sensing without requiring wired connections, with a small sensing volume, which can be used for in situ biomedical sensing, geomagnetic monitoring, smart diagnostics, and distributed industrial sensing. In the linear operating regime, the magnetometer provides a measurement range of $\\pm$ 0.2 mT and a high sensitivity of 10 pT/$\\sqrt{Hz}$, while an extended operating mode allows measurements over a range exceeding $\\pm$ 0.5 mT. The sensor offers a dynamic bandwidth from dc up to a few kilohertz, determined by the excitation frequency.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.23165",
  "author_total": 4,
  "authors": [
    {
      "name": "M. Jurj"
    },
    {
      "name": "C. McDonough"
    },
    {
      "name": "C. Bastajian"
    },
    {
      "name": "A. Tonyushkin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3683mp3wdzr7v.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.23165",
  "fulltext_url": null,
  "id": "3683mp3wdzr7v",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.23165",
  "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",
      "physics.app-ph"
    ],
    [
      "openalex",
      "2208|Magnetic Field Sensors Techniques"
    ]
  ],
  "openalex": "W7214012638",
  "pdf_url": "https://arxiv.org/pdf/2609.23165",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3683mp3wdzr7v.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.23165",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.23165"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.app-ph",
      "subfield": "applied-instrumentation"
    }
  ],
  "title": "Magnetic Particle Magnetometer Based on Langevin Response of Superparamagnetic Nanoparticles for Remote Magnetic Field Sensing",
  "title_text": "Magnetic Particle Magnetometer Based on Langevin Response of Superparamagnetic Nanoparticles for Remote Magnetic Field Sensing",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/3683mp3wdzr7v",
  "venue": "arXiv",
  "versions": []
}