Strong In-plane Magnetic Anisotropy in Semiconducting Monolayer CoCl<sub>2</sub>
Transition-metal dihalides (TMDH) are emerging as a highly promising class of 2D magnetic materials due to their simplicity, stability, and compatibility with nanofabrication techniques. In this work, we explore the structural, electronic, and magnetic properties of monolayer CoCl<sub>2</sub> grown epitaxially on Au(111) using a multitechnique approach. Our results reveal that epitaxial CoCl<sub>2</sub> exhibits ferromagnetic order below 24 K with strong in-plane magnetic anisotropy, setting it apart from other TMDH materials. Additionally, we identify in-gap states arising from the CoCl<sub>2</sub>-Au(111) interface, which provide insights into its electronic behavior. These findings position CoCl<sub>2</sub> as a versatile 2D material for spintronic applications and nanoscale devices, bridging the gap between fundamental research and real-world technological solutions.
Authors
- Maxim Ilyn (ORCID: https://orcid.org/0000-0002-4052-7275)
- Oleksandr Stetsovych (ORCID: https://orcid.org/0000-0001-7788-1617)
- Danilo Longo (ORCID: https://orcid.org/0000-0001-9580-464X)
- Celia Rogero (ORCID: https://orcid.org/0000-0002-2812-8853)
- Samuel Kerschbaumer (ORCID: https://orcid.org/0000-0001-6099-2265)
- David Serrate (ORCID: https://orcid.org/0000-0002-3260-9641)
- Martina Corso (ORCID: https://orcid.org/0000-0002-8592-1284)
- Sebastien E. Hadjadj (ORCID: https://orcid.org/0000-0002-6045-574X)
- Paula Angulo‐Portugal (ORCID: https://orcid.org/0000-0002-1770-0025)
- Adriana E. Candia (ORCID: https://orcid.org/0000-0003-1358-4327)
- Pavel Jelı́nek (ORCID: https://orcid.org/0000-0002-5645-8542)
- Fadi Choueikani (ORCID: https://orcid.org/0000-0001-8047-9397)
- Jorge Lobo‐Checa (ORCID: https://orcid.org/0000-0003-2698-2543)
- Andrés Pinar Solé (ORCID: https://orcid.org/0000-0002-0880-8069)
- Andrea Aguirre‐Baños
- David Caldevilla (ORCID: https://orcid.org/0009-0004-3542-3086)
Institutions
- Universidad de Zaragoza (ES)
- Synchrotron soleil (FR)
- CIC nanoGUNE (ES)
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ)
- Material Physics Center (ES)
- Instituto de Nanociencia y Materiales de Aragón (ES)
Publication Details
- Journal
- ACS Nano
- Published
- 2025-05-30
- DOI
- https://doi.org/10.1021/acsnano.5c02175
- Citations
- 5
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.59
Funders
- Ministerio de Ciencia, Innovación y Universidades
- European Commission
- Ministerstvo Školství, Mládeže a Tělovýchovy
- Grantová Agentura České Republiky
- Eusko Jaurlaritza
- Universidad de Zaragoza
- Agencia Estatal de Investigación