Size and shape dependence of the exchange-bias field in exchange-coupled ferrimagnetic bilayers M. Ziese, R. Höhne, A. Bollero, H.-C. Semmelhack, P. Esquinazi and K. Zimmer Eur. Phys. J. B, 45 2 (2005) 223-230 Published online: 28 June 2005 DOI: 10.1140/epjb/e2005-00177-4