Agradecimientos:
This work was partially supported by the Comision Interrninisterial de Ciencia y Tecnologia (CICyT) of Spain under Project Nos. MAT88-0437 and MAT90-0544.
Structures induced in GeA1 thin multilayer films by laser irradiation are studied. We compute
their multifractal spectra from digitized transmission-electron micrographs. The results show that the patterns, which arise from a diH'usion process followed by rapStructures induced in GeA1 thin multilayer films by laser irradiation are studied. We compute
their multifractal spectra from digitized transmission-electron micrographs. The results show that the patterns, which arise from a diH'usion process followed by rapid solidification, are fractal, and that they cannot be described by a unique scaling exponent[+][-]