Large internal strains in very small iron oxide nanoparticles fabricated by spark discharge with electrodynamic acceleration of plasma jumpers

• Published in: Vacuum Vol. 132; pp. 1 - 4
• Main Authors: Portnov, D.S., Beketov, I.V., Larrañaga, A., Martínez-Amesti, A., Kurlyandskaya, G.V.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.10.2016
• Subjects: Internal strains; Iron oxide nanoparticles; Spark discharge; Iron oxide nanoparticles; Spark discharge; Internal strains
• ISSN: 0042-207X; 1879-2715
• DOI: 10.1016/j.vacuum.2016.07.015

Iron oxide nanoparticles were fabricated by spark discharge method with electrodynamic acceleration of plasma jumpers. For different charging voltages of the capacitor from 8 to 15 kV the magnetite was the main phase represented by nanoparticles of 5–8 nm having large internal strains of the order of 25 × 10−3. •Iron oxide nanoparticles were fabricated by spark discharge.•Electrodynamic acceleration of plasma jumpers was employed.•For different charging voltages of the capacitor the magnetite was the main phase.•Nanoparticles of 8 to 5 nm had giant internal strains of the order of 25 × 10−3.