Emergent 3D Fermiology and Magnetism in an Intercalated Van der Waals System
ABSTRACT Intercalation of magnetic atoms into van der Waals materials provides a versatile platform for tailoring unconventional magnetic properties. However, its impact on electronic dimensionality and exchange mechanisms remains poorly understood. Using Fe‐intercalated as a model system, we combine x‐ray absorption and resonant inelastic scattering with angle‐resolved photoemission and first‐principles calculations to reveal that intercalation reshapes the host electronic structure. We identify a spin‐polarized intercalant‐host hybridized band with pronounced out‐of‐plane dispersion crossing the Fermi level, providing an itinerant channel for interlayer magnetic exchange. This mechanism explains the breakdown of a purely atomic picture and establishes a direct link between lattice geometry, electronic dispersion, and magnetic order. Our findings demonstrate that intercalant‐induced itinerancy enables tunable interlayer coupling in otherwise layered magnets, offering a general microscopic framework for engineering magnetic dimensionality in a broad class of intercalated vdW materials.
Authors
- Emanuel A. Martínez (ORCID: https://orcid.org/0000-0003-3978-9021)
- Vladimir N. Strocov (ORCID: https://orcid.org/0000-0002-1147-8486)
- Paolo Moras (ORCID: https://orcid.org/0000-0002-7771-8737)
- F. Bisti (ORCID: https://orcid.org/0000-0002-7562-5182)
- Victor Porée (ORCID: https://orcid.org/0000-0003-1006-7105)
- Craig Polley (ORCID: https://orcid.org/0000-0002-9893-2767)
- Alessandro Nicolaou (ORCID: https://orcid.org/0000-0001-7348-5369)
- Luigi Camerano (ORCID: https://orcid.org/0009-0000-9454-1649)
- Debora Pierucci (ORCID: https://orcid.org/0000-0001-8751-1994)
- Tianlun Yu (ORCID: https://orcid.org/0000-0001-8973-2782)
- Dario Mastrippolito (ORCID: https://orcid.org/0000-0001-6360-7254)
- L. Ottaviano (ORCID: https://orcid.org/0000-0001-5133-7541)
- G. Profeta (ORCID: https://orcid.org/0000-0002-0535-7573)
- F. D’Orazio (ORCID: https://orcid.org/0000-0002-1907-3125)
- Enrico Della Valle
- Polina M. Sheverdyaeva
- Laura Martella
- Moritz Hoesch
- Thiagarajan Balasubramanian
Institutions
- Centre National de la Recherche Scientifique (FR)
- Lund University (SE)
- University of L'Aquila (IT)
- Synchrotron soleil (FR)
- Deutsches Elektronen-Synchrotron DESY (DE)
- Paul Scherrer Institute (CH)
- Sorbonne Université (FR)
- Institut des Sciences Chimiques de Rennes (FR)
- Institute of Structure of Matter (IT)
- MAX IV Laboratory (SE)
- Institut des NanoSciences de Paris (FR)
- Université de Rennes (FR)
Publication Details
- Journal
- Advanced Science
- Published
- 2026-07-27
- DOI
- https://doi.org/10.1002/advs.76533
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Elettra-Sincrotrone Trieste
- Agence Nationale de la Recherche
- Svenska Forskningsrådet Formas
- Vetenskapsrådet
- Ministero dell'Università e della Ricerca
- HORIZON EUROPE Innovative Europe