Substrate conformal imprint fabrication process of synthetic antiferromagnetic nanoplatelets

Autor: J. Li, P. van Nieuwkerk, M. A. Verschuuren, B. Koopmans, R. Lavrijsen
Přispěvatelé: Physics of Nanostructures, Applied Physics and Science Education, Eindhoven Hendrik Casimir institute, EIRES
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Applied Physics Letters, 121(18):182406. American Institute of Physics
arXiv, 2022:2206.15320. Cornell University Library
ISSN: 0003-6951
Popis: Methods to fabricate and characterize monodisperse magnetic nanoplatelets for fluid/bio-based applications based on spintronic thin-film principles are a challenge. This is due to the required top-down approach where the transfer of optimized blanket films to free particles in a fluid while preserving the magnetic properties is an uncharted field. Here, we explore the use of substrate conformal imprint lithography (SCIL) as a fast and cost-effective fabrication route. We analyze the size distribution of nominal 1.8 μm and 120 nm diameter platelets and show the effect of the fabrication steps on the magnetic properties which we explain through changes in the dominant magnetization reversal mechanism as the size decreases. We show that SCIL allows for efficient large-scale platelet fabrication and discuss how application-specific requirements can be solved via process and material engineering.
Databáze: OpenAIRE