Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 41: Spintronics (Other Effects)
MA 41.4: Vortrag
Donnerstag, 21. März 2024, 15:45–16:00, H 2013
Thin film heterostructures based on Co/Ni synthetic antiferromagnets on polymer tapes: towards a sustainable flexible spintronics — •Mariam Hassan1,2, Sara Laureti2, Christian Rinaldi3, Federico Fagiani3, Gianni Barucca4, Francesca Casoli5, Alessio Mezzi6, Eleonora Bolli6, Saulius Kaciulis6, Aladin Ulrich1, Gaspare Varvaro2, and Manfred Albrecht1 — 1University of Augsburg, Germany — 2CNR-ISM, Italy — 3Politecnico di Milano, Italy — 4Politecnica delle Marche, Italy — 5CNR-IMEM, Italy — 6CNR-ISMN, Italy
Compared to platinum-group metal systems (PGMs), the PGMs-free Co/Ni-system offers several advantages for spin-based devices such as low damping and high spin polarization, and they contribute to a more sustainable future by relieving the demand for strategic raw materials. In this work, flexible synthetic-antiferromagnets with perpendicular-magnetic-anisotropy (PMA-SAFs) and GMR-spin-valves (SVs) containing a SAF-reference electrode and a Co/Ni-free layer were deposited on flexible polyethylene naphthalate tapes with different combinations of buffer and capping layers (Pt, Pd, Cu/Ta). High-quality SAFs with a fully compensated antiferromagnetic region and SVs with a sizeable GMR ratio were obtained. The best performances are achieved with PGMs used as buffer layer and Cu as capping layer[1]. The results indicate that complex Co/Ni-based heterostructures with reduced content of PGMs deposited on flexible tapes allow for the development of novel shapeable and sustainable spintronic devices. [1]ACS Appl. Mater. Interfaces. 14 (2022) 51496-51509.
Keywords: thin films; flexible spintronics; synthetic antiferromagnets; spin valves; perpendicular magnetic anisotropy