Reversible Magnetization-Rotation in Sub-Micron Co-Cr Samples: Measurements and Micromagnetic Simulations

Kooten van, M. and Haan de, S. and Lodder, J.C. and Popma, Th.J.A. (1994) Reversible Magnetization-Rotation in Sub-Micron Co-Cr Samples: Measurements and Micromagnetic Simulations. Journal of Applied Physics, 75 (10). pp. 5508-5510. ISSN 0021-8979

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Abstract:	The magnetization reversal of Co-G with perpendicular anisotropy is studied by anomalous Hall effect measurements and by micromagnetic simulations. In a measured hysteresis loop of a 300 nmX300 nm sample (consisting of approximately 40 columns of Co-G), discrete jumps are observed, together with a more or less continuous change in magnetization, the latter with both positive and negative sign. The continuous and discrete parts of the hysteresis loop are separated to extract micromagnetic information from the anomalous Hall measurement. The discrete jumps are attributed to parts of columns that switch irreversibly, the continuous magnetization change is attributed to reversible rotation, partly of volumes with in-plane anisotropy. These assumptions are checked by means of a micromagnetic model.
Item Type:	Article
Copyright:	© 1994 American Institute of Physics
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Transducers Science and Technology (TST)
Link to this item:	http://purl.utwente.nl/publications/66107
Official URL:	http://dx.doi.org/10.1063/1.355671
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