Preserved Magnetic Functionality in Freestanding Strain-Engineered Nanocomposite Thin Films
The development of freestanding oxide thin films enables the design of unconventional heterostructures with enhanced functionalities. Here, we explore the fabrication of membranes consisting of dense arrays of ultrathin CoxNi1–x nanowires embedded in a dielectric matrix. We present a lift-off process to create and transfer these membranes while preserving the structural and chemical integrity of the nanopillars. The large axial deformation of the metallic nanostructures is maintained, and their magnetic properties remain largely unaltered after substrate removal. This robustness enables the integration of such strain-engineered, vertically aligned nanocomposites into flexible spintronic and magnetic memory platforms.
Authors
- Boris Vodungbo (ORCID: https://orcid.org/0000-0002-0168-9343)
- Emmanuelle Jal (ORCID: https://orcid.org/0000-0001-5297-9124)
- Yunlin Zheng (ORCID: https://orcid.org/0000-0001-8964-5603)
- D. Demaille
- Marcel Hennes (ORCID: https://orcid.org/0000-0003-3405-9601)
- Vincent Polewczyk (ORCID: https://orcid.org/0000-0003-0932-6376)
- Horia Popescu
- Moussa Mebarki
- F. Vidal (ORCID: https://orcid.org/0000-0001-7107-9340)
- Carlos Alfonso Rodríguez Cortéz
- Pal Bhuyan
- Bruno Berini (ORCID: https://orcid.org/0000-0002-9063-5194)
- Yves Dumont (ORCID: https://orcid.org/0000-0002-0739-428X)
- Nicolas Jaouen (ORCID: https://orcid.org/0000-0003-1781-7669)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université de Versailles Saint-Quentin-en-Yvelines (FR)
- Université Paris-Saclay (FR)
- Synchrotron soleil (FR)
- Sorbonne Université (FR)
- Groupe d’Étude de la Matière Condensée (FR)
- Institut des NanoSciences de Paris (FR)
- Laboratoire de Chimie Physique - Matière et Rayonnement (FR)
Publication Details
- Journal
- ACS Applied Nano Materials
- Published
- 2026-05-08
- DOI
- https://doi.org/10.1021/acsanm.6c00973
- Primary Topic
- Advanced Materials and Mechanics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agence Nationale de la Recherche