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Proceedings Paper

Interaction between vortex walls and asymmetric notches in Permalloy nanowires (presentation video)
Author(s): Luiz Sampaio Lima
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Paper Abstract

We have investigated the injection and transmission of vortex domain walls in Permalloy (Py) nanowires through asymmetric triangular notches using Kerr microscopy and micromagnetic simulations. Through coercivity histogram measurements we observed that different vortex chiralities (counterclockwise and clockwise) have different probabilities to be observed after the notch, meaning that the interaction between the vortex wall and the notch is able to change the vortex chirality. Using the experimental results and micromagnetic simulations we were able to obtain the potential produced by the notch on the vortex wall.

Paper Details

Date Published: 17 August 2014
PDF: 1 pages
Proc. SPIE 9167, Spintronics VII, 916710 (17 August 2014); doi: 10.1117/12.2064310
Show Author Affiliations
Luiz Sampaio Lima, Centro Brasileiro de Pesquisas Físicas (Brazil)

Published in SPIE Proceedings Vol. 9167:
Spintronics VII
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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