Plasmon-induced demagnetization and magnetic switching in nickel nanoparticle arrays
Materials Science
2018-03-14 v1
Abstract
We report on the manipulation of magnetization by femtosecond laser pulses in a periodic array of cylindrical nickel nanoparticles. By performing experiments at different wavelength, we show that the excitation of collective surface plasmon resonances triggers demagnetization in zero field or magnetic switching in a small perpendicular field. Both magnetic effects are explained by plasmon-induced heating of the nickel nanoparticles to their Curie temperature. Model calculations confirm the strong correlation between the excitation of surface plasmon modes and laser-induced changes in magnetization.
Keywords
Cite
@article{arxiv.1711.02943,
title = {Plasmon-induced demagnetization and magnetic switching in nickel nanoparticle arrays},
author = {Mikko Kataja and Francisco Freire-Fernandez and Jorn P. Witteveen and Tommi Hakala and Päivi Törmä and Sebastiaan van Dijken},
journal= {arXiv preprint arXiv:1711.02943},
year = {2018}
}
Comments
4 pages, 4 figures