Controlled electrochemical growth and magnetic properties of CoFe2O4 nanowires with high internal magnetic field

Self-polarized ferrimagnetic nanowires of CoFe2O4 are electrochemically grown by the electrodeposition technique in AAO membranes. XRD, EDS and SQUID analysis confirm the formation of highly stoichiometric CoFe2O4 nanowires with high magnetic response into 20 nm-AAO membrane. SEM and AFM images reve...

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Bibliographic Details
Published in:Journal of alloys and compounds 2021-07, Vol.868, p.159196, Article 159196
Main Authors: Labchir, Nabil, Hannour, Abdelkrim, hssi, Abderrahim Ait, Vincent, Didier, Ganster, Patrick, Ihlal, Ahmed
Format: Article
Language:English
Subjects:
AAO membranes
Cobalt ferrite
Cobalt ferrites
Electrodeposition
Engineering Sciences
Magnetic fields
Magnetic properties
Magnetism
Membranes
Micro and nanotechnologies
Microelectronics
Microwave devices
Nanowires
Self-polarized ferrimagnetic nanowires
Substrates
Superconducting quantum interference devices
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Summary:Self-polarized ferrimagnetic nanowires of CoFe2O4 are electrochemically grown by the electrodeposition technique in AAO membranes. XRD, EDS and SQUID analysis confirm the formation of highly stoichiometric CoFe2O4 nanowires with high magnetic response into 20 nm-AAO membrane. SEM and AFM images revealed a total filling of the AAO membrane with Co and Fe at an applied potential of −1.2 V. In addition, the electrodeposition and cooling in the presence of an applied magnetic field improve the magnetic response of CoFe2O4 nanowires. The SQUID measurements confirmed the elaboration of CoFe2O4 nanowires with an internal magnetic field of 1.52 T. As a result, this ferrimagnetic nanowired substrate will be suitable for future miniaturized self-biased microwave devices. •Successful electrochemical growth of CoFe2O4 nanowires in AAO membranes.•The achievement of a total filling of the AAO membrane with CoFe2O4 nanocrystallites for an applied potential of -1.2 V.•The electrochemical growth and cooling in the presence of an applied magnetic field produce a partially hard ferrimagnetic nanocomposite with an internal magnetic field of 1.52 T.•The elaborated CoFe2O4 nanowires can will be suitable for the miniaturized self-biased microwave devices.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2021.159196