{
  "abstract": "Canted antiferromagnet $α$-$\\mathrm{Fe}_{2}\\mathrm{O}_{3}$|Pt bilayers offer a platform for multistate memory, but spin Hall magnetoresistance (SMR) readout cannot distinguish states separated by $180^{\\circ}$, limiting detection to three states. We show that a field-like perturbation lifts the degeneracy of opposite states in $α$-$\\mathrm{Fe}_{2}\\mathrm{O}_{3}$, enabling the resolution of six states in the SMR signal. We introduce a dual-modulation SMR method to mitigate thermal drifts and enable reliable readout. Computations of first- and second-harmonic SMR reveal the role of exchange, anisotropy and field-like perturbations in resolving the states.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.23714",
  "author_total": 5,
  "authors": [
    {
      "name": "Aditya A. Wagh"
    },
    {
      "name": "Shwetha G. Bhat"
    },
    {
      "name": "Krishna Jha"
    },
    {
      "name": "Aiswarya Sukumaran"
    },
    {
      "name": "P. S. Anil Kumar"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e5tqyt2sdwa9b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.23714",
  "fulltext_url": null,
  "id": "e5tqyt2sdwa9b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.23714",
  "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"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "3107|Magnetic properties of thin films"
    ]
  ],
  "openalex": "W7165748338",
  "pdf_url": "https://arxiv.org/pdf/2606.23714",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e5tqyt2sdwa9b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "2606.23714",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.23714"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Field-like Perturbation Enabled Six-state Readout in Triaxial $α$-$\\mathrm{Fe}_{2}\\mathrm{O}_{3}$|Pt Bi-layers",
  "title_text": "Field-like Perturbation Enabled Six-state Readout in Triaxial α-Fe_2O_3|Pt Bi-layers",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/e5tqyt2sdwa9b",
  "venue": "arXiv",
  "versions": []
}