All-optical reversible switching of local magnetization

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2007

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Department of Applied Physics

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en

Pages

3

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Applied Physics Letters, Volume 91, issue 4, pp. 1-3

Abstract

The authors demonstrate all-optical reversible switching of the magnetization direction in a uniformly magnetized ferrite-garnet film. The magnetization is switched by locally heating the film with a pulsed laser beam. The direction to which the magnetization flips is controlled by two parameters, the beam diameter and the pulse energy, and not by the direction of the external magnetic field. In the experiments, neither the magnitude nor the direction of the external magnetic field is changed. The results of this work illustrate the richness of optical methods to locally control the properties of magnetic materials and suggest all-optical device applications.

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DOI

10.1063/1.2760163

Citation

Shevchenko, A, Korppi, M, Lindfors, K, Heilio, M, Kaivola, M, "Il'yashenko", E & Johansen, T H 2007, 'All-optical reversible switching of local magnetization', Applied Physics Letters, vol. 91, no. 4, 041916, pp. 1-3. https://doi.org/10.1063/1.2760163

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https://urn.fi/URN:NBN:fi:aalto-202510087938

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[article-cris] Perustieteiden korkeakoulu / SCI