Periodic magnetic anisotropy in ultrathin ferromagnetic films on faceted surfaces A. Tejeda, G. Baudot, V. Repain, S. Rousset, J. Ferré, J. P. Jamet, A. Thiaville and L. Barbier Europhys. Lett., 71 1 (2005) 117-123 Published online: 01 June 2005 DOI: 10.1209/epl/i2005-10060-0