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- Title
Spontaneous Faraday rotation of CoxFe3-xO4 thin films electrodeposited under a static magnetic field.
- Authors
Labchir, N.; Hannour, A.; hssi, A. Ait; Vincent, D.; Jamon, D.; Michalon, J. Y.; Ihlal, A.; Sajieddine, M.
- Abstract
Co x Fe 3 - x O 4 ( 0 < x ≤ 1) thin films were elaborated by electrodeposition under a static magnetic field on fluorine-doped tin oxide (FTO) substrates followed by an air annealing at 500 °C for 24 h. The XRD analysis revealed cubic spinel structure with an average crystallite size ranging from 40 to 46 nm. Moreover, the SEM and AFM observations indicated a noticeable magnetic field effect on the surface morphology. The optical band gap deduced from the transmittance data is around 3.4 eV. The magneto-optical measurements indicated very interesting spontaneous Faraday rotation of 4628 ∘ / cm . The successful elaboration of partially hard magnetic cobalt ferrite thin films offers a new route for high potential exploitation of the spontaneous Faraday rotation effect, which is necessary to develop advanced and miniaturized non-reciprocal optical devices.
- Subjects
FARADAY effect; THIN films; MAGNETIC fields; MAGNETIC field effects; BAND gaps; COBALT; FERRITES; ELECTROPLATING
- Publication
Journal of Materials Science: Materials in Electronics, 2020, Vol 31, Issue 14, p11029
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-020-03652-9