Complex angular dependence of exchange bias on (001) epitaxial NiO-Co bilayers S. Dubourg, J. F. Bobo, B. Warot, E. Snoeck and J. C. Ousset Eur. Phys. J. B, 45 2 (2005) 175-179 Published online: 28 June 2005 DOI: 10.1140/epjb/e2005-00180-9