Self-Organized Formation of Rhomboidal Nanopyramids on fcc(110) Metal Surfaces

Autor: F. Xiaerding, Corrado Boragno, Anna Molinari, F. Buatier de Mongeot, Ugo Valbusa, Alessandro Molle
Rok vydání: 2004
Předmět:
Zdroj: Physical Review Letters. 93
ISSN: 1079-7114
0031-9007
DOI: 10.1103/physrevlett.93.256103
Popis: We report on the far from equilibrium self-organized morphologies obtained after Xe ion irradiation of the Rh(110) and Cu(110) surfaces. Here we experimentally identify by means of high resolution LEED a novel interfacial state characterized by a rhomboidal pyramid islanding with majority steps oriented along nonequilibrium low-symmetry directions. The formation of the novel rhomboidal pyramid state and the transition to the well-known rippled phases results from a delicate interplay of kinetic processes which are controlled by acting on temperature, ion flux, and impact energy.
Databáze: OpenAIRE