Goos-Hänchen effect of spin electron beams in a parallel double δ-barrier magnetic nanostructure L. Yuan, L.L. Xiang, Y.H. Kong, M.W. Lu, Z.J. Lan, A.H. Zeng and Z.Y. Wang Eur. Phys. J. B, 85 1 (2012) 8 Published online: 11 January 2012 DOI: 10.1140/epjb/e2011-20690-y