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Switchable light reflectance in dilute magneto-optical colloids based on nickel ferrite nanowires

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)119-121
Number of pages3
Journale-Journal of Surface Science and Nanotechnology
Publication statusPublished - 2 May 2018
Publication typeA1 Journal article-refereed


Optical properties of diluted narrow band gap magnetic semiconductor nanowire colloids are controlled by modest magnetic fields under 100 Oe. High aspect ratio NiFe2O4 nanowires are used to achieve responsiveness to magnetic field, light absorption and -scattering. Visible light reflectance of the diluted colloids can be either increased or decreased depending on the nanowire alignment relative to the direction of the light propagation. The prepared colloids can be applied as magneto-optical switches or as smart window devices.


  • Colloid, Ferrimagnetic, Magneto-optical, Nanowire, NiFe2O4

Publication forum classification

Field of science, Statistics Finland