Magnetic properties of FeGa/Kapton for flexible electronics
Pradhan, Gajanan (Istituto Nazionale di Ricerca Metrologica)
Celegato, Federica (Istituto Nazionale di Ricerca Metrologica)
Barrera, Gabriele (Istituto Nazionale di Ricerca Metrologica)
Olivetti, Elena Sonia (Istituto Nazionale di Ricerca Metrologica)
Coisson, Marco (Istituto Nazionale di Ricerca Metrologica)
Hajduček, Jan (Brno University of Technology. Central European Institute of Technology)
Arregi, Jon Ander (Brno University of Technology. Central European Institute of Technology)
Čelko, Ladislav (Brno University of Technology. Central European Institute of Technology)
Uhlíř, Vojtěch (Brno University of Technology. Central European Institute of Technology)
Rizzi, Paola (Università di Torino. Dipartimento di Chimica)
Tiberto, Paola (Istituto Nazionale di Ricerca Metrologica)

Date:	2022
Abstract:	Flexible materials have brought up a new era of application-based research in stretchable electronics and wearable devices in the last decade. Tuning of magnetic properties by changing the curvature of devices has significant impact in the new generation of sensor-based technologies. In this work, magnetostrictive FeGa thin films have been deposited on a flexible Kapton sheet to exploit the magneto-elastic coupling effect and modify the magnetic properties of the sample. The FeGa alloy has high magnetostriction constant and high tensile strength making its properties susceptible to external stress. Tensile or compressive strain generated by the convex or concave states influence the uniaxial magnetic anisotropy of the system. Low temperature measurements show a hard magnetic behavior and the presence of exchange-bias effect after field cooling to 2 K. The results obtained in this study prove essential for the development of flexible electronics.
Grants:	European Commission 861145
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Scientific reports, Vol. 12 (October 2022) , art. 17503, ISSN 2045-2322

DOI: 10.1038/s41598-022-21589-3
PMID: 36261483

11 p, 4.7 MB

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