Magnetic-field-assisted formation of oriented nanowires produced by pld in open air

Magnetic-field-assisted formation of oriented nanowires produced by pld in open air

[Display omitted] •Oriented magnetic nanowires were produced by PLD in open air in magnetic field.•Nanoparticles-composed nanowires can be oriented by the magnetic field.•Processing parameters can be used to modify the nanostructure characteristics.•The presented technology can be a basis for effici...

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Bibliographic Details
Published in:Applied surface science Vol. 458; pp. 273 - 280
Main Authors: Nikov, Rumen G., Dikovska, Anna Og, Atanasova, Genoveva B., Avdeev, Georgi V., Nedyalkov, Nikolay N.
Format: Journal Article
Language:English
Published: Elsevier B.V 15-11-2018
Subjects:
Iron oxide
Magnetic field
Nanowires
PLD in open air
Iron oxide
Nanowires
Magnetic field
PLD in open air
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Summary:[Display omitted] •Oriented magnetic nanowires were produced by PLD in open air in magnetic field.•Nanoparticles-composed nanowires can be oriented by the magnetic field.•Processing parameters can be used to modify the nanostructure characteristics.•The presented technology can be a basis for efficient industrial applications. A laser-based technology is presented for fabrication of oriented nanowires composed by nanoparticles. The nanowires were produced by nanosecond pulsed laser deposition in air at atmospheric pressure in the presence of an external magnetic field. The technology described is relevant to the preparation of nanowires of magnetic materials. Applying an external magnetic field during the deposition resulted in the formation of nanowires with lengths of a few microns oriented longitudinally to the magnetic field lines. The influence was investigated of the process parameters, namely, laser fluence, target-substrate distance, and wavelength used for ablation, on the morphology of the deposited samples. It was found that the degree of the nanowires’ orientation increased with the increase of the target-substrate distance. Also, the density of the deposited material was influenced by the laser fluence applied and by the wavelength used.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2018.07.109