Cañadas Castro, MarioCuerno, RodolfoVázquez Burgos, LuisGago, Raúl2010-02-182010-02-182005-01-14Physical Review Letters 94, 016102 (2005)0031-9007 (Print)1079-7114 (Online)http://hdl.handle.net/10016/69134 pages, 2 figures.-- PACS nrs.: 79.20.Rf, 05.45.–a, 68.35.Ct, 81.16.Rf.-- ArXiv pre-print available at: http://arxiv.org/abs/cond-mat/0506453Final publisher version available Open Access at: http://gisc.uc3m.es/~cuerno/publ_list.htmlWe study the self-organized ordering of nanostructures produced by ion-beam sputtering of targets amorphizing under irradiation. By introducing a model akin to models of pattern formation in aeolian sand dunes, we extend consistently the current continuum theory of erosion by IBS. We obtain new nonlinear effects responsible for the in-plane ordering of the structures, whose strength correlates with the degree of ordering found in experiments. Our results highlight the importance of redeposition and surface viscous flow to this nanopattern formation process.application/pdfeng© The American Physical Society[PACS] Atomic, molecular, and ion beam impact and interactions with surfaces[PACS] Nonlinear dynamics and chaos[PACS] Interface structure and roughness[PACS] Micro- and nanoscale pattern formationresearch articleMatemáticashttps://www.doi.org/10.1103/PhysRevLett.94.016102open access