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American Institute of Physics, Applied Physics Letters, 3(85), p. 440

DOI: 10.1063/1.1772520

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Exploring spin valve magnetization reversal dynamics with temporal, spatial and layer resolution: Influence of domain-wall energy

Journal article published in 2004 by Wolfgang Kuch, Jan Vogel ORCID, Julio Camarero, Keiki Fukumoto, Yan Pennec, Stefania Pizzini, Marlio Bonfim, Jürgen Kirschner
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The magnetization reversal dynamics of an Fe20Ni 80/Cu/Co spin valve was studied on the nanosecond time scale. It was found that the dynamic magnetization reversal of the magnetically softer Fe 20Ni80 layer was determined by the domain-wall energy, and the local magnetic interlayer coupling to the domain structure of the Co layer. The magnetization reversal in laterally extended magnetic thin films was found to proceed by nucleation and expansion of the magnetic domains. The speed of magnetization reversal was found to depend exponentially on the effective field Heff.