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Initial processes of surface
and interface roughening by ion irradiation

Yudi Rosandi and H.M. Urbassek



Ion irradiation of a metal surface result in surface roughening. Furthermore irradiation at glancing incidence enables a well pronounched pattern formation on the surface. At a very small angle between ion beam and the surface, it is difficult to start this process, when the surface is very clean. We investigate this initial process by studying the effects of pre-existence adsorbates, adatoms, and surface steps.


Diagram of initial processes. Click to enlarge!

Initial processes diagram



Interaction of intense XUV laser pulses
with condensed matter

Yudi Rosandi and H.M. Urbassek


Laser Induced Melting





Crystal phase and structure transition


Inequilibrium Phenomena



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