Pattern evolution on previously rippled Au(001) by crossing-ion-beam sputtering
- Pattern evolution on previously rippled Au(001) by crossing-ion-beam sputtering
- 김지현; 조민웅; 김상필; N.B.Ha; 이광렬; B. Kahng; 김재성
- Molecular Dynamics Simulation; ion bombardment; surface nano-structure; Au (001); gold; ion-surface impact; pattern formation; sputtering; surface morphology
- Issue Date
- Physical review B, Condensed matter and materials physics
- VOL 79, NO 20, 205403-1-205403-8
- We study the pattern evolution of pre-rippled Au 001 during sputtering by an ion beam that is incident
perpendicular to the initial ripple in azimuth at a grazing angle. Prepatterned ripples decay exponentially with
time and new ripples develop only after extended flat areas form along the crossing-ion beams. Hence, the
superposition of the initial and new ripple patterns does not occur. The kinetic behaviors of new ripples
growing on pre-rippled Au 001 by the crossing-ion beams are distinct from those on initially flat Au 001 .
When comparing the pre-rippled surface to the initially flat surface, the morphological evolution is substantially
influenced by enhanced nonlinear effects such as redeposition.
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