{
  "abstract": "Ferromagnetic heavy-metal (FM/HM) trilayer heterostructures provide a versatile platform for investigating the interplay between structural and magnetic properties. In this study, we investigate the effect of Co-layer thickness on the structural and magnetic properties of sputter-deposited $\\mathrm{Co}(t_{\\mathrm{Co}})/\\mathrm{Ir}(5\\,\\mathrm{nm})/\\mathrm{Co}(t_{\\mathrm{Co}})$ varying from 2 to 10 nm. Structural characterization using grazing-incidence X-ray diffraction (GIXRD) and high-resolution transmission electron microscopy (HRTEM) reveals a nanocrystalline structure, with the crystallite size increasing with Co-layer thickness. Furthermore, X-ray reflectivity (XRR) reveals a thickness-dependent variation in interface morphology, with the interface roughness ratio reaching a maximum at $t_{\\mathrm{Co}} = 4$ nm. Temperature-dependent zero-field-cooled and field-cooled (ZFC-FC) magnetization measurements reveal thickness-dependent characteristic temperatures and multiple relaxation regimes in selected samples, indicating complex thermally activated magnetic behaviour. In contrast, field-dependent hysteresis measurements reveal that the saturation magnetization increases with Co-layer thickness, whereas the coercivity exhibits a pronounced non-monotonic variation, with enhanced values at intermediate thicknesses. Moreover, low-temperature hysteresis loops display thickness-dependent exchange-bias-like shifts, particularly for $t_{\\mathrm{Co}} = 2$-$4$ nm. These findings highlight the strong influence of Co-layer thickness on the structural and magnetic properties of Co/Ir/Co trilayers.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.33595",
  "author_total": 7,
  "authors": [
    {
      "name": "Subhavenkadesh SS"
    },
    {
      "name": "Dushyant Singh"
    },
    {
      "name": "Tharundev V V"
    },
    {
      "name": "Subha Maity"
    },
    {
      "name": "Navneet Sharma"
    },
    {
      "name": "Vigneshwari SR"
    },
    {
      "name": "Krista R. Khiangte"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bxp6467e5nt2j.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.33595",
  "fulltext_url": null,
  "id": "bxp6467e5nt2j",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.33595",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "openalex",
      "3107|Magnetic properties of thin films"
    ]
  ],
  "openalex": "W7224004325",
  "pdf_url": "https://arxiv.org/pdf/2610.33595",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-24",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bxp6467e5nt2j.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.33595",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.33595"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Co layer Thickness Driven Structural Evolution and Magnetic Behaviour of Co/Ir/Co Trilayers",
  "title_text": "Co layer Thickness Driven Structural Evolution and Magnetic Behaviour of Co/Ir/Co Trilayers",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/bxp6467e5nt2j",
  "venue": "arXiv",
  "versions": []
}