Université de Fribourg

Polarized Neutron Reflectivity Investigation of Periodic Magnetic Rings

Ogrin, F. Y. ; Weekes, S. M. ; Cubitt, B. ; Wildes, A. ; Drew, Alan J. ; Ross, C. A. ; Jung, W. ; Menon, R. ; Toperverg, B.

In: IEEE Transactions on Magnetics, 2007, vol. 43, no. 6, p. 2731 - 2733

Magnetic ring structures are of particular interest, due to stable remanent configurations such as the vortex state, which have potential in future magnetic random access memory (MRAM) applications. Here we report results on the first experimental study of periodic ring arrays using off-specular polarized neutron reflectivity (PNR). The experiments were performed on a 7.5 mmtimes5 mm NiFe array...